/usr/bin/java -Xmx8000000000 -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-NoLbe-OGIterative-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_12.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 12:48:32,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 12:48:32,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 12:48:32,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 12:48:32,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 12:48:32,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 12:48:32,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 12:48:32,750 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-NoLbe-OGIterative-Hitting.epf [2021-08-13 12:48:32,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 12:48:32,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 12:48:32,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 12:48:32,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 12:48:32,781 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 12:48:32,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 12:48:32,782 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 12:48:32,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 12:48:32,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 12:48:32,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 12:48:32,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 12:48:32,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 12:48:32,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 12:48:32,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 12:48:32,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 12:48:32,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 12:48:32,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 12:48:32,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 12:48:32,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 12:48:32,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 12:48:32,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 12:48:32,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 12:48:32,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 12:48:32,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 12:48:32,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 12:48:32,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 12:48:32,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 12:48:32,785 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 12:48:32,785 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 12:48:32,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 12:48:32,785 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 12:48:32,785 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 12:48:32,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 12:48:33,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 12:48:33,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 12:48:33,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 12:48:33,074 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 12:48:33,075 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 12:48:33,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_12.bpl [2021-08-13 12:48:33,076 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_12.bpl' [2021-08-13 12:48:33,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 12:48:33,095 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 12:48:33,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 12:48:33,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 12:48:33,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 12:48:33,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (1/1) ... [2021-08-13 12:48:33,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (1/1) ... [2021-08-13 12:48:33,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 12:48:33,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 12:48:33,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 12:48:33,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 12:48:33,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (1/1) ... [2021-08-13 12:48:33,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (1/1) ... [2021-08-13 12:48:33,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (1/1) ... [2021-08-13 12:48:33,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (1/1) ... [2021-08-13 12:48:33,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (1/1) ... [2021-08-13 12:48:33,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (1/1) ... [2021-08-13 12:48:33,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (1/1) ... [2021-08-13 12:48:33,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 12:48:33,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 12:48:33,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 12:48:33,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 12:48:33,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (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 [2021-08-13 12:48:33,190 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-13 12:48:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-13 12:48:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-13 12:48:33,190 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-13 12:48:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-13 12:48:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-13 12:48:33,190 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-13 12:48:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-13 12:48:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-13 12:48:33,191 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-13 12:48:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-13 12:48:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-13 12:48:33,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-13 12:48:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-13 12:48:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-13 12:48:33,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-08-13 12:48:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-08-13 12:48:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-08-13 12:48:33,192 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 12:48:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 12:48:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 12:48:33,193 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-13 12:48:33,193 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-13 12:48:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-13 12:48:33,194 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-08-13 12:48:33,194 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-08-13 12:48:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-08-13 12:48:33,194 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-08-13 12:48:33,194 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-08-13 12:48:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-08-13 12:48:33,194 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-08-13 12:48:33,195 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-08-13 12:48:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-08-13 12:48:33,195 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-08-13 12:48:33,195 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-08-13 12:48:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-08-13 12:48:33,195 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-08-13 12:48:33,195 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-08-13 12:48:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-08-13 12:48:33,196 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 12:48:33,368 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 12:48:33,368 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 12:48:33,369 INFO L202 PluginConnector]: Adding new model example_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:48:33 BoogieIcfgContainer [2021-08-13 12:48:33,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 12:48:33,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 12:48:33,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 12:48:33,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 12:48:33,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:48:33" (1/2) ... [2021-08-13 12:48:33,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666de334 and model type example_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:48:33, skipping insertion in model container [2021-08-13 12:48:33,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:48:33" (2/2) ... [2021-08-13 12:48:33,379 INFO L111 eAbstractionObserver]: Analyzing ICFG example_12.bpl [2021-08-13 12:48:33,383 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 12:48:33,383 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 12:48:33,383 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 12:48:33,549 INFO L149 ThreadInstanceAdder]: Constructed 144 joinOtherThreadTransitions. [2021-08-13 12:48:33,563 INFO L255 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-08-13 12:48:33,576 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 12:48:33,576 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 12:48:33,576 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 12:48:33,576 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 12:48:33,576 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 12:48:33,576 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 12:48:33,577 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 12:48:33,577 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 12:48:33,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 195 transitions, 882 flow [2021-08-13 12:48:35,142 INFO L129 PetriNetUnfolder]: 20481/24615 cut-off events. [2021-08-13 12:48:35,143 INFO L130 PetriNetUnfolder]: For 24576/24576 co-relation queries the response was YES. [2021-08-13 12:48:35,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49228 conditions, 24615 events. 20481/24615 cut-off events. For 24576/24576 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 94640 event pairs, 0 based on Foata normal form. 0/24614 useless extension candidates. Maximal degree in co-relation 22585. Up to 5544 conditions per place. [2021-08-13 12:48:35,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 195 transitions, 882 flow [2021-08-13 12:48:35,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 181 transitions, 830 flow [2021-08-13 12:48:36,775 INFO L129 PetriNetUnfolder]: 20481/24612 cut-off events. [2021-08-13 12:48:36,775 INFO L130 PetriNetUnfolder]: For 24576/24576 co-relation queries the response was YES. [2021-08-13 12:48:36,776 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:36,776 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:36,777 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:36,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:36,782 INFO L82 PathProgramCache]: Analyzing trace with hash 734982159, now seen corresponding path program 1 times [2021-08-13 12:48:36,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:36,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844241143] [2021-08-13 12:48:36,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:36,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:36,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:36,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:36,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:36,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:36,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:36,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:36,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:36,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844241143] [2021-08-13 12:48:36,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844241143] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:36,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:36,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:36,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881995004] [2021-08-13 12:48:36,926 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:36,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:36,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:36,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:36,941 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 195 [2021-08-13 12:48:36,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 181 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:36,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:36,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 195 [2021-08-13 12:48:36,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:38,681 INFO L129 PetriNetUnfolder]: 18545/22445 cut-off events. [2021-08-13 12:48:38,682 INFO L130 PetriNetUnfolder]: For 26737/26737 co-relation queries the response was YES. [2021-08-13 12:48:38,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46708 conditions, 22445 events. 18545/22445 cut-off events. For 26737/26737 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 107022 event pairs, 0 based on Foata normal form. 232/22677 useless extension candidates. Maximal degree in co-relation 22573. Up to 5544 conditions per place. [2021-08-13 12:48:38,974 INFO L132 encePairwiseOnDemand]: 190/195 looper letters, 8 selfloop transitions, 1 changer transitions 0/177 dead transitions. [2021-08-13 12:48:38,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 177 transitions, 828 flow [2021-08-13 12:48:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:38,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:38,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 559 transitions. [2021-08-13 12:48:38,989 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9555555555555556 [2021-08-13 12:48:38,990 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 559 transitions. [2021-08-13 12:48:38,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 559 transitions. [2021-08-13 12:48:38,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:38,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 559 transitions. [2021-08-13 12:48:38,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:39,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:39,005 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:39,005 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 2 predicate places. [2021-08-13 12:48:39,005 INFO L482 AbstractCegarLoop]: Abstraction has has 88 places, 177 transitions, 828 flow [2021-08-13 12:48:39,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:39,006 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:39,006 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:39,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 12:48:39,007 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:39,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:39,008 INFO L82 PathProgramCache]: Analyzing trace with hash 168517307, now seen corresponding path program 1 times [2021-08-13 12:48:39,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:39,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553208647] [2021-08-13 12:48:39,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:39,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:39,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:39,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:39,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:39,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:39,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:39,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:39,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553208647] [2021-08-13 12:48:39,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553208647] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:39,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:39,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:39,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767965951] [2021-08-13 12:48:39,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:39,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:39,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:39,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:39,059 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 195 [2021-08-13 12:48:39,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 177 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:39,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:39,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 195 [2021-08-13 12:48:39,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:40,276 INFO L129 PetriNetUnfolder]: 18445/22334 cut-off events. [2021-08-13 12:48:40,277 INFO L130 PetriNetUnfolder]: For 29686/29686 co-relation queries the response was YES. [2021-08-13 12:48:40,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48349 conditions, 22334 events. 18445/22334 cut-off events. For 29686/29686 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 106503 event pairs, 0 based on Foata normal form. 11/22345 useless extension candidates. Maximal degree in co-relation 23444. Up to 5544 conditions per place. [2021-08-13 12:48:40,453 INFO L132 encePairwiseOnDemand]: 192/195 looper letters, 10 selfloop transitions, 1 changer transitions 0/175 dead transitions. [2021-08-13 12:48:40,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 175 transitions, 840 flow [2021-08-13 12:48:40,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:40,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:40,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 559 transitions. [2021-08-13 12:48:40,455 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9555555555555556 [2021-08-13 12:48:40,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 559 transitions. [2021-08-13 12:48:40,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 559 transitions. [2021-08-13 12:48:40,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:40,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 559 transitions. [2021-08-13 12:48:40,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:40,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:40,458 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:40,458 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 4 predicate places. [2021-08-13 12:48:40,458 INFO L482 AbstractCegarLoop]: Abstraction has has 90 places, 175 transitions, 840 flow [2021-08-13 12:48:40,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:40,459 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:40,459 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:40,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 12:48:40,459 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:40,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:40,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1173151183, now seen corresponding path program 1 times [2021-08-13 12:48:40,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:40,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139221387] [2021-08-13 12:48:40,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:40,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:40,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:40,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:40,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:40,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:40,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:40,483 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:40,483 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139221387] [2021-08-13 12:48:40,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139221387] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:40,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:40,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:40,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575160828] [2021-08-13 12:48:40,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:40,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:40,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:40,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:40,485 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 195 [2021-08-13 12:48:40,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 175 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:40,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:40,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 195 [2021-08-13 12:48:40,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:41,017 INFO L129 PetriNetUnfolder]: 7836/9735 cut-off events. [2021-08-13 12:48:41,018 INFO L130 PetriNetUnfolder]: For 18750/18750 co-relation queries the response was YES. [2021-08-13 12:48:41,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21209 conditions, 9735 events. 7836/9735 cut-off events. For 18750/18750 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 43366 event pairs, 0 based on Foata normal form. 1861/11596 useless extension candidates. Maximal degree in co-relation 21150. Up to 2772 conditions per place. [2021-08-13 12:48:41,078 INFO L132 encePairwiseOnDemand]: 183/195 looper letters, 1 selfloop transitions, 1 changer transitions 0/153 dead transitions. [2021-08-13 12:48:41,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 153 transitions, 730 flow [2021-08-13 12:48:41,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:41,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 559 transitions. [2021-08-13 12:48:41,080 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9555555555555556 [2021-08-13 12:48:41,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 559 transitions. [2021-08-13 12:48:41,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 559 transitions. [2021-08-13 12:48:41,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:41,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 559 transitions. [2021-08-13 12:48:41,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,083 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,083 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 6 predicate places. [2021-08-13 12:48:41,083 INFO L482 AbstractCegarLoop]: Abstraction has has 92 places, 153 transitions, 730 flow [2021-08-13 12:48:41,083 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,083 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:41,083 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:41,083 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 12:48:41,084 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:41,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:41,084 INFO L82 PathProgramCache]: Analyzing trace with hash 262617355, now seen corresponding path program 1 times [2021-08-13 12:48:41,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:41,084 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444770375] [2021-08-13 12:48:41,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:41,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:41,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:41,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:41,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444770375] [2021-08-13 12:48:41,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444770375] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:41,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:41,102 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:41,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375258860] [2021-08-13 12:48:41,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:41,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:41,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:41,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:41,103 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 195 [2021-08-13 12:48:41,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 153 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:41,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 195 [2021-08-13 12:48:41,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:41,283 INFO L129 PetriNetUnfolder]: 3296/4274 cut-off events. [2021-08-13 12:48:41,283 INFO L130 PetriNetUnfolder]: For 8466/8466 co-relation queries the response was YES. [2021-08-13 12:48:41,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9425 conditions, 4274 events. 3296/4274 cut-off events. For 8466/8466 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 18018 event pairs, 0 based on Foata normal form. 829/5103 useless extension candidates. Maximal degree in co-relation 9364. Up to 1260 conditions per place. [2021-08-13 12:48:41,311 INFO L132 encePairwiseOnDemand]: 186/195 looper letters, 3 selfloop transitions, 1 changer transitions 0/145 dead transitions. [2021-08-13 12:48:41,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 145 transitions, 698 flow [2021-08-13 12:48:41,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:41,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:41,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2021-08-13 12:48:41,314 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9538461538461539 [2021-08-13 12:48:41,315 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:41,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,317 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 8 predicate places. [2021-08-13 12:48:41,317 INFO L482 AbstractCegarLoop]: Abstraction has has 94 places, 145 transitions, 698 flow [2021-08-13 12:48:41,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,318 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:41,318 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:41,318 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 12:48:41,318 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:41,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:41,318 INFO L82 PathProgramCache]: Analyzing trace with hash -699065829, now seen corresponding path program 1 times [2021-08-13 12:48:41,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:41,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904336134] [2021-08-13 12:48:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:41,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:41,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:41,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:41,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904336134] [2021-08-13 12:48:41,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904336134] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:41,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:41,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:41,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545483147] [2021-08-13 12:48:41,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:41,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:41,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:41,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:41,336 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 195 [2021-08-13 12:48:41,336 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 145 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:41,336 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 195 [2021-08-13 12:48:41,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:41,410 INFO L129 PetriNetUnfolder]: 1251/1720 cut-off events. [2021-08-13 12:48:41,410 INFO L130 PetriNetUnfolder]: For 3666/3666 co-relation queries the response was YES. [2021-08-13 12:48:41,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3824 conditions, 1720 events. 1251/1720 cut-off events. For 3666/3666 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 6816 event pairs, 0 based on Foata normal form. 410/2130 useless extension candidates. Maximal degree in co-relation 3761. Up to 504 conditions per place. [2021-08-13 12:48:41,423 INFO L132 encePairwiseOnDemand]: 185/195 looper letters, 2 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2021-08-13 12:48:41,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 136 transitions, 659 flow [2021-08-13 12:48:41,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:41,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2021-08-13 12:48:41,425 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9538461538461539 [2021-08-13 12:48:41,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:41,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,428 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 10 predicate places. [2021-08-13 12:48:41,428 INFO L482 AbstractCegarLoop]: Abstraction has has 96 places, 136 transitions, 659 flow [2021-08-13 12:48:41,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,428 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:41,428 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:41,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 12:48:41,429 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:41,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:41,429 INFO L82 PathProgramCache]: Analyzing trace with hash -857465901, now seen corresponding path program 1 times [2021-08-13 12:48:41,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:41,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251521857] [2021-08-13 12:48:41,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:41,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:41,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:41,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:41,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251521857] [2021-08-13 12:48:41,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251521857] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:41,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:41,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:41,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780749604] [2021-08-13 12:48:41,446 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:41,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:41,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:41,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:41,447 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 195 [2021-08-13 12:48:41,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 136 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:41,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 195 [2021-08-13 12:48:41,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:41,556 INFO L129 PetriNetUnfolder]: 690/1026 cut-off events. [2021-08-13 12:48:41,557 INFO L130 PetriNetUnfolder]: For 1917/1917 co-relation queries the response was YES. [2021-08-13 12:48:41,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2387 conditions, 1026 events. 690/1026 cut-off events. For 1917/1917 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4129 event pairs, 0 based on Foata normal form. 92/1118 useless extension candidates. Maximal degree in co-relation 2322. Up to 252 conditions per place. [2021-08-13 12:48:41,562 INFO L132 encePairwiseOnDemand]: 189/195 looper letters, 6 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2021-08-13 12:48:41,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 131 transitions, 648 flow [2021-08-13 12:48:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:41,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:41,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2021-08-13 12:48:41,564 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9538461538461539 [2021-08-13 12:48:41,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:41,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,566 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 12 predicate places. [2021-08-13 12:48:41,566 INFO L482 AbstractCegarLoop]: Abstraction has has 98 places, 131 transitions, 648 flow [2021-08-13 12:48:41,567 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,567 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:41,567 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:41,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 12:48:41,567 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:41,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:41,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1878268969, now seen corresponding path program 1 times [2021-08-13 12:48:41,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:41,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843984590] [2021-08-13 12:48:41,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:41,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:41,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:41,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:41,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843984590] [2021-08-13 12:48:41,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843984590] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:41,587 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:41,587 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:41,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064576318] [2021-08-13 12:48:41,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:41,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:41,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:41,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:41,589 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 195 [2021-08-13 12:48:41,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 131 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:41,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 195 [2021-08-13 12:48:41,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:41,612 INFO L129 PetriNetUnfolder]: 189/338 cut-off events. [2021-08-13 12:48:41,612 INFO L130 PetriNetUnfolder]: For 840/840 co-relation queries the response was YES. [2021-08-13 12:48:41,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 338 events. 189/338 cut-off events. For 840/840 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1135 event pairs, 0 based on Foata normal form. 110/448 useless extension candidates. Maximal degree in co-relation 727. Up to 63 conditions per place. [2021-08-13 12:48:41,614 INFO L132 encePairwiseOnDemand]: 184/195 looper letters, 1 selfloop transitions, 1 changer transitions 0/94 dead transitions. [2021-08-13 12:48:41,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 94 transitions, 443 flow [2021-08-13 12:48:41,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:41,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:41,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2021-08-13 12:48:41,616 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9538461538461539 [2021-08-13 12:48:41,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:41,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2021-08-13 12:48:41,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,618 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 14 predicate places. [2021-08-13 12:48:41,618 INFO L482 AbstractCegarLoop]: Abstraction has has 100 places, 94 transitions, 443 flow [2021-08-13 12:48:41,619 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,619 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:41,619 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:41,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 12:48:41,619 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:41,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:41,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1680816513, now seen corresponding path program 1 times [2021-08-13 12:48:41,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:41,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232133474] [2021-08-13 12:48:41,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:41,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:41,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:41,637 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:41,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232133474] [2021-08-13 12:48:41,637 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232133474] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:41,637 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:41,637 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:41,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277008173] [2021-08-13 12:48:41,638 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:41,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:41,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:41,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:41,639 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 195 [2021-08-13 12:48:41,639 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 443 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:41,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 195 [2021-08-13 12:48:41,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:41,651 INFO L129 PetriNetUnfolder]: 44/125 cut-off events. [2021-08-13 12:48:41,651 INFO L130 PetriNetUnfolder]: For 277/277 co-relation queries the response was YES. [2021-08-13 12:48:41,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 125 events. 44/125 cut-off events. For 277/277 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 294 event pairs, 0 based on Foata normal form. 39/164 useless extension candidates. Maximal degree in co-relation 233. Up to 20 conditions per place. [2021-08-13 12:48:41,652 INFO L132 encePairwiseOnDemand]: 187/195 looper letters, 1 selfloop transitions, 1 changer transitions 0/80 dead transitions. [2021-08-13 12:48:41,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 80 transitions, 371 flow [2021-08-13 12:48:41,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:41,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:41,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2021-08-13 12:48:41,653 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2021-08-13 12:48:41,653 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2021-08-13 12:48:41,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2021-08-13 12:48:41,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:41,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2021-08-13 12:48:41,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,656 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 16 predicate places. [2021-08-13 12:48:41,656 INFO L482 AbstractCegarLoop]: Abstraction has has 102 places, 80 transitions, 371 flow [2021-08-13 12:48:41,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,656 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:41,656 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:41,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 12:48:41,656 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:41,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:41,657 INFO L82 PathProgramCache]: Analyzing trace with hash -879583933, now seen corresponding path program 1 times [2021-08-13 12:48:41,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:41,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466653393] [2021-08-13 12:48:41,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:41,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:48:41,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:41,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:41,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466653393] [2021-08-13 12:48:41,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466653393] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:41,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:41,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:48:41,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899277680] [2021-08-13 12:48:41,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:48:41,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:41,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:48:41,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:48:41,676 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 195 [2021-08-13 12:48:41,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 80 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:41,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 195 [2021-08-13 12:48:41,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:41,688 INFO L129 PetriNetUnfolder]: 8/64 cut-off events. [2021-08-13 12:48:41,688 INFO L130 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2021-08-13 12:48:41,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 64 events. 8/64 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 0 based on Foata normal form. 13/77 useless extension candidates. Maximal degree in co-relation 94. Up to 6 conditions per place. [2021-08-13 12:48:41,688 INFO L132 encePairwiseOnDemand]: 188/195 looper letters, 1 selfloop transitions, 1 changer transitions 0/59 dead transitions. [2021-08-13 12:48:41,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 59 transitions, 258 flow [2021-08-13 12:48:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:48:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:48:41,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2021-08-13 12:48:41,691 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.947008547008547 [2021-08-13 12:48:41,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 554 transitions. [2021-08-13 12:48:41,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 554 transitions. [2021-08-13 12:48:41,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:41,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 554 transitions. [2021-08-13 12:48:41,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,693 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,693 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 18 predicate places. [2021-08-13 12:48:41,693 INFO L482 AbstractCegarLoop]: Abstraction has has 104 places, 59 transitions, 258 flow [2021-08-13 12:48:41,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:41,693 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:41,693 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:41,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 12:48:41,693 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:41,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:41,694 INFO L82 PathProgramCache]: Analyzing trace with hash -833793785, now seen corresponding path program 1 times [2021-08-13 12:48:41,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:41,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147741902] [2021-08-13 12:48:41,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:41,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:41,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:41,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:48:41,776 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:48:41,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:48:41,796 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:48:41,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:48:41,831 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 12:48:41,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 12:48:41,862 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-08-13 12:48:41,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 12:48:41,908 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-08-13 12:48:41,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-08-13 12:48:41,955 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-08-13 12:48:41,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-08-13 12:48:42,014 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-08-13 12:48:42,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-08-13 12:48:42,085 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 12:48:42,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 12:48:42,137 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 12:48:42,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 12:48:42,201 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-08-13 12:48:42,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-08-13 12:48:42,269 INFO L142 QuantifierPusher]: treesize reduction 99, result has 47.3 percent of original size [2021-08-13 12:48:42,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-08-13 12:48:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:42,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:42,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147741902] [2021-08-13 12:48:42,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147741902] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:42,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:42,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-13 12:48:42,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410584055] [2021-08-13 12:48:42,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-08-13 12:48:42,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:42,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-13 12:48:42,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-08-13 12:48:42,328 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 195 [2021-08-13 12:48:42,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 59 transitions, 258 flow. Second operand has 14 states, 14 states have (on average 181.92857142857142) internal successors, (2547), 14 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:42,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:42,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 195 [2021-08-13 12:48:42,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:45,246 INFO L129 PetriNetUnfolder]: 28382/42126 cut-off events. [2021-08-13 12:48:45,246 INFO L130 PetriNetUnfolder]: For 3611/3611 co-relation queries the response was YES. [2021-08-13 12:48:45,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78876 conditions, 42126 events. 28382/42126 cut-off events. For 3611/3611 co-relation queries the response was YES. Maximal size of possible extension queue 3418. Compared 329218 event pairs, 9217 based on Foata normal form. 1/41374 useless extension candidates. Maximal degree in co-relation 78750. Up to 12289 conditions per place. [2021-08-13 12:48:46,044 INFO L132 encePairwiseOnDemand]: 182/195 looper letters, 77 selfloop transitions, 12 changer transitions 0/135 dead transitions. [2021-08-13 12:48:46,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 135 transitions, 588 flow [2021-08-13 12:48:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 12:48:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 12:48:46,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2624 transitions. [2021-08-13 12:48:46,051 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9611721611721612 [2021-08-13 12:48:46,051 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2624 transitions. [2021-08-13 12:48:46,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2624 transitions. [2021-08-13 12:48:46,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:46,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2624 transitions. [2021-08-13 12:48:46,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 187.42857142857142) internal successors, (2624), 14 states have internal predecessors, (2624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:46,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 195.0) internal successors, (2925), 15 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:46,060 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 195.0) internal successors, (2925), 15 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:46,060 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 31 predicate places. [2021-08-13 12:48:46,060 INFO L482 AbstractCegarLoop]: Abstraction has has 117 places, 135 transitions, 588 flow [2021-08-13 12:48:46,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 181.92857142857142) internal successors, (2547), 14 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:46,061 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:46,061 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:46,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 12:48:46,061 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:46,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:46,062 INFO L82 PathProgramCache]: Analyzing trace with hash -2111200531, now seen corresponding path program 2 times [2021-08-13 12:48:46,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:46,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468396026] [2021-08-13 12:48:46,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:46,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:46,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:46,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:46,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:48:46,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:46,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:48:46,614 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:48:46,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:48:46,628 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:48:46,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:48:46,644 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 12:48:46,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 12:48:46,665 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 12:48:46,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 12:48:46,691 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 12:48:46,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 12:48:46,751 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 12:48:46,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 12:48:46,791 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 12:48:46,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 12:48:46,848 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-08-13 12:48:46,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-08-13 12:48:46,902 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-13 12:48:46,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-13 12:48:46,964 INFO L142 QuantifierPusher]: treesize reduction 99, result has 47.3 percent of original size [2021-08-13 12:48:46,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-08-13 12:48:47,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:47,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:47,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468396026] [2021-08-13 12:48:47,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468396026] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:47,020 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:47,020 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-13 12:48:47,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053432970] [2021-08-13 12:48:47,020 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-08-13 12:48:47,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:47,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-13 12:48:47,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-08-13 12:48:47,022 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 195 [2021-08-13 12:48:47,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 135 transitions, 588 flow. Second operand has 14 states, 14 states have (on average 181.92857142857142) internal successors, (2547), 14 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:47,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:47,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 195 [2021-08-13 12:48:47,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:48:54,092 INFO L129 PetriNetUnfolder]: 44772/75599 cut-off events. [2021-08-13 12:48:54,093 INFO L130 PetriNetUnfolder]: For 31506/121854 co-relation queries the response was YES. [2021-08-13 12:48:54,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193584 conditions, 75599 events. 44772/75599 cut-off events. For 31506/121854 co-relation queries the response was YES. Maximal size of possible extension queue 4452. Compared 740793 event pairs, 4097 based on Foata normal form. 1/73743 useless extension candidates. Maximal degree in co-relation 193197. Up to 16939 conditions per place. [2021-08-13 12:48:55,307 INFO L132 encePairwiseOnDemand]: 182/195 looper letters, 355 selfloop transitions, 56 changer transitions 0/457 dead transitions. [2021-08-13 12:48:55,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 457 transitions, 2698 flow [2021-08-13 12:48:55,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 12:48:55,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 12:48:55,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2624 transitions. [2021-08-13 12:48:55,321 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9611721611721612 [2021-08-13 12:48:55,321 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2624 transitions. [2021-08-13 12:48:55,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2624 transitions. [2021-08-13 12:48:55,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:48:55,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2624 transitions. [2021-08-13 12:48:55,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 187.42857142857142) internal successors, (2624), 14 states have internal predecessors, (2624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:55,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 195.0) internal successors, (2925), 15 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:55,331 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 195.0) internal successors, (2925), 15 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:55,332 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 44 predicate places. [2021-08-13 12:48:55,332 INFO L482 AbstractCegarLoop]: Abstraction has has 130 places, 457 transitions, 2698 flow [2021-08-13 12:48:55,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 181.92857142857142) internal successors, (2547), 14 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:55,333 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:48:55,333 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:48:55,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 12:48:55,333 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:48:55,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:48:55,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1803864377, now seen corresponding path program 3 times [2021-08-13 12:48:55,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:48:55,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257689143] [2021-08-13 12:48:55,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:48:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:48:55,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:55,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:48:55,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:55,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:48:55,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:48:55,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:48:55,398 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:48:55,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:48:55,407 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:48:55,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:48:55,425 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 12:48:55,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 12:48:55,446 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 12:48:55,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 12:48:55,469 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 12:48:55,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 12:48:55,499 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 12:48:55,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 12:48:55,538 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 12:48:55,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 12:48:55,589 INFO L142 QuantifierPusher]: treesize reduction 72, result has 53.5 percent of original size [2021-08-13 12:48:55,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-08-13 12:48:55,673 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-08-13 12:48:55,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-08-13 12:48:55,746 INFO L142 QuantifierPusher]: treesize reduction 99, result has 47.3 percent of original size [2021-08-13 12:48:55,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-08-13 12:48:55,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:48:55,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:48:55,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257689143] [2021-08-13 12:48:55,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257689143] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:48:55,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:48:55,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-13 12:48:55,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599794800] [2021-08-13 12:48:55,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-08-13 12:48:55,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:48:55,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-13 12:48:55,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-08-13 12:48:55,796 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 195 [2021-08-13 12:48:55,798 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 457 transitions, 2698 flow. Second operand has 14 states, 14 states have (on average 181.92857142857142) internal successors, (2547), 14 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:48:55,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:48:55,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 195 [2021-08-13 12:48:55,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:49:08,214 INFO L129 PetriNetUnfolder]: 63983/113602 cut-off events. [2021-08-13 12:49:08,214 INFO L130 PetriNetUnfolder]: For 59479/374417 co-relation queries the response was YES. [2021-08-13 12:49:09,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 352059 conditions, 113602 events. 63983/113602 cut-off events. For 59479/374417 co-relation queries the response was YES. Maximal size of possible extension queue 8228. Compared 1248765 event pairs, 1793 based on Foata normal form. 1/110250 useless extension candidates. Maximal degree in co-relation 351070. Up to 23929 conditions per place. [2021-08-13 12:49:10,426 INFO L132 encePairwiseOnDemand]: 182/195 looper letters, 1139 selfloop transitions, 187 changer transitions 0/1372 dead transitions. [2021-08-13 12:49:10,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 1372 transitions, 10840 flow [2021-08-13 12:49:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-13 12:49:10,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-08-13 12:49:10,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2624 transitions. [2021-08-13 12:49:10,440 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9611721611721612 [2021-08-13 12:49:10,440 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2624 transitions. [2021-08-13 12:49:10,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2624 transitions. [2021-08-13 12:49:10,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:49:10,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2624 transitions. [2021-08-13 12:49:10,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 187.42857142857142) internal successors, (2624), 14 states have internal predecessors, (2624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:10,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 195.0) internal successors, (2925), 15 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:10,447 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 195.0) internal successors, (2925), 15 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:10,448 INFO L348 CegarLoopForPetriNet]: 86 programPoint places, 57 predicate places. [2021-08-13 12:49:10,448 INFO L482 AbstractCegarLoop]: Abstraction has has 143 places, 1372 transitions, 10840 flow [2021-08-13 12:49:10,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 181.92857142857142) internal successors, (2547), 14 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:10,448 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:49:10,448 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 12:49:10,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 12:49:10,449 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:49:10,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:49:10,449 INFO L82 PathProgramCache]: Analyzing trace with hash -490670987, now seen corresponding path program 4 times [2021-08-13 12:49:10,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:49:10,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547992303] [2021-08-13 12:49:10,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:49:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:49:10,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:10,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:49:10,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:10,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:49:10,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:10,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:49:10,496 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:49:10,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:49:10,506 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:49:10,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:49:10,519 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 12:49:10,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 12:49:10,538 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 12:49:10,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 12:49:10,567 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 12:49:10,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 12:49:10,601 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 12:49:10,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 12:49:10,644 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 12:49:10,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 12:49:10,693 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 12:49:10,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 12:49:10,744 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-08-13 12:49:10,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-08-13 12:49:10,808 INFO L142 QuantifierPusher]: treesize reduction 99, result has 47.3 percent of original size [2021-08-13 12:49:10,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-08-13 12:49:10,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:49:10,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:49:10,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547992303] [2021-08-13 12:49:10,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547992303] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:49:10,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:49:10,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-08-13 12:49:10,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036216573] [2021-08-13 12:49:10,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-08-13 12:49:10,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:49:10,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-13 12:49:10,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-08-13 12:49:10,858 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 195 [2021-08-13 12:49:10,859 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 1372 transitions, 10840 flow. Second operand has 14 states, 14 states have (on average 181.92857142857142) internal successors, (2547), 14 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:10,859 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:49:10,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 195 [2021-08-13 12:49:10,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand