/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-CovSimpl-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 17:54:06,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 17:54:06,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 17:54:06,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 17:54:06,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 17:54:06,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 17:54:06,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 17:54:06,731 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-CovSimpl-Hitting.epf [2021-08-13 17:54:06,779 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 17:54:06,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 17:54:06,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 17:54:06,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 17:54:06,782 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 17:54:06,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 17:54:06,782 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 17:54:06,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 17:54:06,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 17:54:06,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 17:54:06,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 17:54:06,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 17:54:06,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 17:54:06,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 17:54:06,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 17:54:06,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 17:54:06,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 17:54:06,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 17:54:06,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 17:54:06,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 17:54:06,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 17:54:06,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 17:54:06,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 17:54:06,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 17:54:06,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 17:54:06,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 17:54:06,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 17:54:06,785 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 17:54:06,785 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 17:54:06,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 17:54:06,785 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 17:54:06,785 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 17:54:06,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 17:54:06,785 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 17:54:07,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 17:54:07,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 17:54:07,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 17:54:07,054 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 17:54:07,055 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 17:54:07,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl [2021-08-13 17:54:07,056 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl' [2021-08-13 17:54:07,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 17:54:07,075 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 17:54:07,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 17:54:07,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 17:54:07,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 17:54:07,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (1/1) ... [2021-08-13 17:54:07,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (1/1) ... [2021-08-13 17:54:07,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 17:54:07,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 17:54:07,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 17:54:07,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 17:54:07,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (1/1) ... [2021-08-13 17:54:07,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (1/1) ... [2021-08-13 17:54:07,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (1/1) ... [2021-08-13 17:54:07,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (1/1) ... [2021-08-13 17:54:07,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (1/1) ... [2021-08-13 17:54:07,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (1/1) ... [2021-08-13 17:54:07,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (1/1) ... [2021-08-13 17:54:07,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 17:54:07,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 17:54:07,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 17:54:07,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 17:54:07,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (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 17:54:07,160 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-13 17:54:07,160 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-13 17:54:07,161 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-13 17:54:07,161 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-13 17:54:07,161 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-13 17:54:07,161 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-13 17:54:07,161 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-13 17:54:07,161 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-13 17:54:07,161 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-13 17:54:07,161 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-13 17:54:07,161 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-13 17:54:07,161 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-13 17:54:07,163 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-13 17:54:07,163 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-13 17:54:07,163 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-13 17:54:07,163 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-08-13 17:54:07,164 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-08-13 17:54:07,164 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-08-13 17:54:07,164 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 17:54:07,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 17:54:07,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 17:54:07,165 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-13 17:54:07,165 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-13 17:54:07,167 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-13 17:54:07,167 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-08-13 17:54:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-08-13 17:54:07,168 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-08-13 17:54:07,168 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-08-13 17:54:07,168 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-08-13 17:54:07,171 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-08-13 17:54:07,172 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-08-13 17:54:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-08-13 17:54:07,172 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-08-13 17:54:07,172 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-08-13 17:54:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-08-13 17:54:07,172 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-08-13 17:54:07,173 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 17:54:07,296 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 17:54:07,296 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 17:54:07,297 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 05:54:07 BoogieIcfgContainer [2021-08-13 17:54:07,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 17:54:07,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 17:54:07,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 17:54:07,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 17:54:07,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 05:54:07" (1/2) ... [2021-08-13 17:54:07,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce6d707 and model type example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 05:54:07, skipping insertion in model container [2021-08-13 17:54:07,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 05:54:07" (2/2) ... [2021-08-13 17:54:07,302 INFO L111 eAbstractionObserver]: Analyzing ICFG example_11.bpl [2021-08-13 17:54:07,305 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 17:54:07,305 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 17:54:07,306 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 17:54:07,529 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2021-08-13 17:54:07,549 INFO L255 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-08-13 17:54:07,577 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 17:54:07,577 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 17:54:07,578 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 17:54:07,578 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 17:54:07,578 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 17:54:07,578 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 17:54:07,578 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 17:54:07,578 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 17:54:07,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 168 transitions, 754 flow [2021-08-13 17:54:08,517 INFO L129 PetriNetUnfolder]: 9217/11300 cut-off events. [2021-08-13 17:54:08,517 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2021-08-13 17:54:08,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22598 conditions, 11300 events. 9217/11300 cut-off events. For 11264/11264 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 45968 event pairs, 0 based on Foata normal form. 0/11299 useless extension candidates. Maximal degree in co-relation 10292. Up to 2772 conditions per place. [2021-08-13 17:54:08,550 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 168 transitions, 754 flow [2021-08-13 17:54:08,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 155 transitions, 706 flow [2021-08-13 17:54:09,388 INFO L129 PetriNetUnfolder]: 9217/11297 cut-off events. [2021-08-13 17:54:09,389 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2021-08-13 17:54:09,389 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:09,389 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] [2021-08-13 17:54:09,390 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:09,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:09,395 INFO L82 PathProgramCache]: Analyzing trace with hash 647344664, now seen corresponding path program 1 times [2021-08-13 17:54:09,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:09,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597501562] [2021-08-13 17:54:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:09,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:09,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:09,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:09,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:54:09,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:09,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:09,521 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 17:54:09,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:09,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597501562] [2021-08-13 17:54:09,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597501562] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:09,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:09,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:54:09,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096472194] [2021-08-13 17:54:09,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:54:09,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:09,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:54:09,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:54:09,545 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 17:54:09,550 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 155 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:09,550 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:09,550 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 17:54:09,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:10,304 INFO L129 PetriNetUnfolder]: 6657/8352 cut-off events. [2021-08-13 17:54:10,304 INFO L130 PetriNetUnfolder]: For 10753/10753 co-relation queries the response was YES. [2021-08-13 17:54:10,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17344 conditions, 8352 events. 6657/8352 cut-off events. For 10753/10753 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 36663 event pairs, 0 based on Foata normal form. 386/8738 useless extension candidates. Maximal degree in co-relation 10277. Up to 2310 conditions per place. [2021-08-13 17:54:10,359 INFO L132 encePairwiseOnDemand]: 162/168 looper letters, 6 selfloop transitions, 1 changer transitions 0/150 dead transitions. [2021-08-13 17:54:10,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 150 transitions, 695 flow [2021-08-13 17:54:10,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:54:10,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:54:10,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 17:54:10,374 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 17:54:10,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 17:54:10,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 17:54:10,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:10,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 17:54:10,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 17:54:10,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:10,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:10,387 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2021-08-13 17:54:10,388 INFO L482 AbstractCegarLoop]: Abstraction has has 81 places, 150 transitions, 695 flow [2021-08-13 17:54:10,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:10,388 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:10,388 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] [2021-08-13 17:54:10,389 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 17:54:10,389 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:10,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:10,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1525982910, now seen corresponding path program 1 times [2021-08-13 17:54:10,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:10,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665574142] [2021-08-13 17:54:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:10,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:10,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:10,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:10,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:54:10,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:10,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:10,445 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 17:54:10,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:10,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665574142] [2021-08-13 17:54:10,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665574142] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:10,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:10,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:54:10,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402128296] [2021-08-13 17:54:10,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:54:10,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:10,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:54:10,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:54:10,455 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 17:54:10,455 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 150 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:10,455 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:10,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 17:54:10,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:10,783 INFO L129 PetriNetUnfolder]: 3930/5117 cut-off events. [2021-08-13 17:54:10,783 INFO L130 PetriNetUnfolder]: For 7775/7775 co-relation queries the response was YES. [2021-08-13 17:54:10,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11010 conditions, 5117 events. 3930/5117 cut-off events. For 7775/7775 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 22490 event pairs, 0 based on Foata normal form. 382/5499 useless extension candidates. Maximal degree in co-relation 7084. Up to 1320 conditions per place. [2021-08-13 17:54:10,821 INFO L132 encePairwiseOnDemand]: 161/168 looper letters, 5 selfloop transitions, 1 changer transitions 0/144 dead transitions. [2021-08-13 17:54:10,821 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 144 transitions, 677 flow [2021-08-13 17:54:10,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:54:10,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:54:10,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 17:54:10,822 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 17:54:10,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 17:54:10,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 17:54:10,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:10,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 17:54:10,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 17:54:10,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:10,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:10,826 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2021-08-13 17:54:10,826 INFO L482 AbstractCegarLoop]: Abstraction has has 83 places, 144 transitions, 677 flow [2021-08-13 17:54:10,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:10,826 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:10,826 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] [2021-08-13 17:54:10,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 17:54:10,827 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:10,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:10,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1379566560, now seen corresponding path program 1 times [2021-08-13 17:54:10,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:10,827 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407473916] [2021-08-13 17:54:10,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:10,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:10,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:10,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:10,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:54:10,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:10,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:10,851 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 17:54:10,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:10,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407473916] [2021-08-13 17:54:10,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407473916] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:10,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:10,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:54:10,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091046020] [2021-08-13 17:54:10,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:54:10,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:10,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:54:10,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:54:10,853 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 17:54:10,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 144 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:10,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:10,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 17:54:10,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:11,117 INFO L129 PetriNetUnfolder]: 3698/4848 cut-off events. [2021-08-13 17:54:11,117 INFO L130 PetriNetUnfolder]: For 7356/7356 co-relation queries the response was YES. [2021-08-13 17:54:11,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10916 conditions, 4848 events. 3698/4848 cut-off events. For 7356/7356 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 21084 event pairs, 0 based on Foata normal form. 37/4885 useless extension candidates. Maximal degree in co-relation 6858. Up to 1320 conditions per place. [2021-08-13 17:54:11,160 INFO L132 encePairwiseOnDemand]: 164/168 looper letters, 8 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2021-08-13 17:54:11,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 141 transitions, 680 flow [2021-08-13 17:54:11,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:54:11,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:54:11,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 17:54:11,161 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 17:54:11,161 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 17:54:11,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 17:54:11,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:11,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 17:54:11,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 17:54:11,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:11,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:11,164 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2021-08-13 17:54:11,164 INFO L482 AbstractCegarLoop]: Abstraction has has 85 places, 141 transitions, 680 flow [2021-08-13 17:54:11,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:11,164 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:11,164 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] [2021-08-13 17:54:11,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 17:54:11,165 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:11,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:11,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1530877280, now seen corresponding path program 1 times [2021-08-13 17:54:11,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:11,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160599549] [2021-08-13 17:54:11,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:11,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:11,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:11,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:11,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:54:11,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:11,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:11,195 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 17:54:11,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:11,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160599549] [2021-08-13 17:54:11,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160599549] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:11,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:11,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:54:11,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263576767] [2021-08-13 17:54:11,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:54:11,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:11,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:54:11,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:54:11,200 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 17:54:11,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 141 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:11,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:11,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 17:54:11,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:11,500 INFO L129 PetriNetUnfolder]: 3264/4329 cut-off events. [2021-08-13 17:54:11,501 INFO L130 PetriNetUnfolder]: For 7579/7579 co-relation queries the response was YES. [2021-08-13 17:54:11,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10210 conditions, 4329 events. 3264/4329 cut-off events. For 7579/7579 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 19770 event pairs, 0 based on Foata normal form. 64/4393 useless extension candidates. Maximal degree in co-relation 6177. Up to 1320 conditions per place. [2021-08-13 17:54:11,534 INFO L132 encePairwiseOnDemand]: 163/168 looper letters, 7 selfloop transitions, 1 changer transitions 0/137 dead transitions. [2021-08-13 17:54:11,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 137 transitions, 676 flow [2021-08-13 17:54:11,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:54:11,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:54:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 17:54:11,536 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 17:54:11,536 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 17:54:11,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 17:54:11,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:11,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 17:54:11,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 17:54:11,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:11,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:11,539 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 8 predicate places. [2021-08-13 17:54:11,539 INFO L482 AbstractCegarLoop]: Abstraction has has 87 places, 137 transitions, 676 flow [2021-08-13 17:54:11,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:11,539 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:11,539 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] [2021-08-13 17:54:11,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 17:54:11,541 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:11,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:11,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1733092768, now seen corresponding path program 1 times [2021-08-13 17:54:11,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:11,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168089402] [2021-08-13 17:54:11,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:11,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:11,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:11,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:11,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:54:11,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:11,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:11,559 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 17:54:11,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:11,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168089402] [2021-08-13 17:54:11,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168089402] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:11,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:11,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:54:11,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311523166] [2021-08-13 17:54:11,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:54:11,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:11,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:54:11,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:54:11,561 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 17:54:11,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 137 transitions, 676 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:11,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:11,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 17:54:11,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:11,860 INFO L129 PetriNetUnfolder]: 3258/4322 cut-off events. [2021-08-13 17:54:11,861 INFO L130 PetriNetUnfolder]: For 8168/8168 co-relation queries the response was YES. [2021-08-13 17:54:11,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10590 conditions, 4322 events. 3258/4322 cut-off events. For 8168/8168 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 19416 event pairs, 0 based on Foata normal form. 1/4323 useless extension candidates. Maximal degree in co-relation 6434. Up to 1320 conditions per place. [2021-08-13 17:54:11,887 INFO L132 encePairwiseOnDemand]: 166/168 looper letters, 10 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2021-08-13 17:54:11,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 136 transitions, 693 flow [2021-08-13 17:54:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:54:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:54:11,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 17:54:11,889 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 17:54:11,889 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 17:54:11,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 17:54:11,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:11,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 17:54:11,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 17:54:11,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:11,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:11,891 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2021-08-13 17:54:11,891 INFO L482 AbstractCegarLoop]: Abstraction has has 89 places, 136 transitions, 693 flow [2021-08-13 17:54:11,892 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:11,892 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:11,892 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] [2021-08-13 17:54:11,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 17:54:11,892 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:11,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:11,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1928391998, now seen corresponding path program 1 times [2021-08-13 17:54:11,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:11,893 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27340926] [2021-08-13 17:54:11,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:11,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:11,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:11,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:11,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:54:11,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:11,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:11,932 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 17:54:11,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:11,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27340926] [2021-08-13 17:54:11,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27340926] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:11,935 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:11,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:54:11,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847844336] [2021-08-13 17:54:11,936 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:54:11,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:11,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:54:11,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:54:11,937 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 17:54:11,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 136 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:11,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:11,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 17:54:11,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:12,158 INFO L129 PetriNetUnfolder]: 3223/4280 cut-off events. [2021-08-13 17:54:12,159 INFO L130 PetriNetUnfolder]: For 8902/8902 co-relation queries the response was YES. [2021-08-13 17:54:12,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10888 conditions, 4280 events. 3223/4280 cut-off events. For 8902/8902 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 19032 event pairs, 0 based on Foata normal form. 6/4286 useless extension candidates. Maximal degree in co-relation 6677. Up to 1320 conditions per place. [2021-08-13 17:54:12,192 INFO L132 encePairwiseOnDemand]: 165/168 looper letters, 9 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2021-08-13 17:54:12,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 134 transitions, 703 flow [2021-08-13 17:54:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:54:12,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:54:12,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 17:54:12,194 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 17:54:12,194 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:12,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 17:54:12,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:12,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:12,196 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2021-08-13 17:54:12,196 INFO L482 AbstractCegarLoop]: Abstraction has has 91 places, 134 transitions, 703 flow [2021-08-13 17:54:12,196 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:12,196 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:12,196 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] [2021-08-13 17:54:12,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 17:54:12,197 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:12,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:12,197 INFO L82 PathProgramCache]: Analyzing trace with hash 12595962, now seen corresponding path program 1 times [2021-08-13 17:54:12,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:12,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309843280] [2021-08-13 17:54:12,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:12,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:12,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:54:12,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:12,227 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 17:54:12,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:12,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309843280] [2021-08-13 17:54:12,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309843280] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:12,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:12,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:54:12,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499672527] [2021-08-13 17:54:12,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:54:12,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:12,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:54:12,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:54:12,230 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 17:54:12,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 134 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:12,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:12,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 17:54:12,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:12,316 INFO L129 PetriNetUnfolder]: 1015/1490 cut-off events. [2021-08-13 17:54:12,319 INFO L130 PetriNetUnfolder]: For 4245/4245 co-relation queries the response was YES. [2021-08-13 17:54:12,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3890 conditions, 1490 events. 1015/1490 cut-off events. For 4245/4245 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 6447 event pairs, 0 based on Foata normal form. 330/1820 useless extension candidates. Maximal degree in co-relation 3408. Up to 360 conditions per place. [2021-08-13 17:54:12,331 INFO L132 encePairwiseOnDemand]: 159/168 looper letters, 3 selfloop transitions, 1 changer transitions 0/126 dead transitions. [2021-08-13 17:54:12,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 126 transitions, 671 flow [2021-08-13 17:54:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:54:12,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:54:12,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 17:54:12,333 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 17:54:12,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:12,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 17:54:12,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:12,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:12,335 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 14 predicate places. [2021-08-13 17:54:12,335 INFO L482 AbstractCegarLoop]: Abstraction has has 93 places, 126 transitions, 671 flow [2021-08-13 17:54:12,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:12,335 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:12,336 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] [2021-08-13 17:54:12,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 17:54:12,336 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:12,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:12,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1667527728, now seen corresponding path program 1 times [2021-08-13 17:54:12,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:12,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989498995] [2021-08-13 17:54:12,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:12,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:12,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:54:12,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:12,369 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 17:54:12,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:12,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989498995] [2021-08-13 17:54:12,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989498995] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:12,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:12,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:54:12,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059064350] [2021-08-13 17:54:12,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:54:12,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:12,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:54:12,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:54:12,371 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 17:54:12,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 126 transitions, 671 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:12,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:12,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 17:54:12,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:12,404 INFO L129 PetriNetUnfolder]: 223/407 cut-off events. [2021-08-13 17:54:12,404 INFO L130 PetriNetUnfolder]: For 1280/1280 co-relation queries the response was YES. [2021-08-13 17:54:12,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 407 events. 223/407 cut-off events. For 1280/1280 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1524 event pairs, 0 based on Foata normal form. 129/536 useless extension candidates. Maximal degree in co-relation 967. Up to 84 conditions per place. [2021-08-13 17:54:12,407 INFO L132 encePairwiseOnDemand]: 158/168 looper letters, 2 selfloop transitions, 1 changer transitions 0/117 dead transitions. [2021-08-13 17:54:12,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 117 transitions, 632 flow [2021-08-13 17:54:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:54:12,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:54:12,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 17:54:12,408 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 17:54:12,408 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:12,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 17:54:12,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:12,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:12,410 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 16 predicate places. [2021-08-13 17:54:12,410 INFO L482 AbstractCegarLoop]: Abstraction has has 95 places, 117 transitions, 632 flow [2021-08-13 17:54:12,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:12,411 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:12,411 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] [2021-08-13 17:54:12,411 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 17:54:12,411 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:12,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:12,411 INFO L82 PathProgramCache]: Analyzing trace with hash 604395462, now seen corresponding path program 1 times [2021-08-13 17:54:12,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:12,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960853308] [2021-08-13 17:54:12,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:12,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:12,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:54:12,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:12,438 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 17:54:12,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:12,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960853308] [2021-08-13 17:54:12,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960853308] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:12,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:12,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:54:12,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450455536] [2021-08-13 17:54:12,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:54:12,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:12,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:54:12,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:54:12,442 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 17:54:12,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 117 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:12,442 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:12,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 17:54:12,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:12,462 INFO L129 PetriNetUnfolder]: 55/155 cut-off events. [2021-08-13 17:54:12,462 INFO L130 PetriNetUnfolder]: For 412/412 co-relation queries the response was YES. [2021-08-13 17:54:12,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 155 events. 55/155 cut-off events. For 412/412 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 446 event pairs, 0 based on Foata normal form. 28/183 useless extension candidates. Maximal degree in co-relation 311. Up to 20 conditions per place. [2021-08-13 17:54:12,463 INFO L132 encePairwiseOnDemand]: 160/168 looper letters, 4 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2021-08-13 17:54:12,463 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 110 transitions, 607 flow [2021-08-13 17:54:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:54:12,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:54:12,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 17:54:12,464 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 17:54:12,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:12,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 17:54:12,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:12,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:12,466 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2021-08-13 17:54:12,466 INFO L482 AbstractCegarLoop]: Abstraction has has 97 places, 110 transitions, 607 flow [2021-08-13 17:54:12,467 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:12,467 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:12,467 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] [2021-08-13 17:54:12,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 17:54:12,467 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:12,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:12,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1881922806, now seen corresponding path program 1 times [2021-08-13 17:54:12,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:12,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598404757] [2021-08-13 17:54:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:12,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:12,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 17:54:12,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:12,495 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 17:54:12,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:12,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598404757] [2021-08-13 17:54:12,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598404757] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:12,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:12,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 17:54:12,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60947593] [2021-08-13 17:54:12,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 17:54:12,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:12,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 17:54:12,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 17:54:12,499 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 168 [2021-08-13 17:54:12,499 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 110 transitions, 607 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:12,499 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:12,499 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 168 [2021-08-13 17:54:12,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:12,517 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2021-08-13 17:54:12,517 INFO L130 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2021-08-13 17:54:12,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 45 events. 0/45 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 10/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 17:54:12,518 INFO L132 encePairwiseOnDemand]: 157/168 looper letters, 1 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2021-08-13 17:54:12,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 45 transitions, 196 flow [2021-08-13 17:54:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 17:54:12,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 17:54:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2021-08-13 17:54:12,519 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 17:54:12,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:12,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 480 transitions. [2021-08-13 17:54:12,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 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 17:54:12,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:12,521 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 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 17:54:12,521 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 20 predicate places. [2021-08-13 17:54:12,522 INFO L482 AbstractCegarLoop]: Abstraction has has 99 places, 45 transitions, 196 flow [2021-08-13 17:54:12,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 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 17:54:12,522 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:12,522 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] [2021-08-13 17:54:12,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 17:54:12,522 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:12,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:12,523 INFO L82 PathProgramCache]: Analyzing trace with hash -302006568, now seen corresponding path program 1 times [2021-08-13 17:54:12,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:12,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057820337] [2021-08-13 17:54:12,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:12,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:12,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:54:12,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:12,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 17:54:12,623 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 17:54:12,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 17:54:12,652 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 17:54:12,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 17:54:12,693 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-08-13 17:54:12,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-08-13 17:54:12,742 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-08-13 17:54:12,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-08-13 17:54:12,785 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-08-13 17:54:12,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-08-13 17:54:12,832 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 17:54:12,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 17:54:12,871 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 17:54:12,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 17:54:12,935 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 17:54:12,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 17:54:13,072 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 17:54:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 17:54:13,150 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 17:54:13,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:13,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057820337] [2021-08-13 17:54:13,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057820337] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:13,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:13,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 17:54:13,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682439075] [2021-08-13 17:54:13,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 17:54:13,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:13,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 17:54:13,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 17:54:13,153 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 17:54:13,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 45 transitions, 196 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:13,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:13,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 17:54:13,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:14,641 INFO L129 PetriNetUnfolder]: 12291/18851 cut-off events. [2021-08-13 17:54:14,641 INFO L130 PetriNetUnfolder]: For 1100/1100 co-relation queries the response was YES. [2021-08-13 17:54:14,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35033 conditions, 18851 events. 12291/18851 cut-off events. For 1100/1100 co-relation queries the response was YES. Maximal size of possible extension queue 1579. Compared 139315 event pairs, 4097 based on Foata normal form. 1/18465 useless extension candidates. Maximal degree in co-relation 34914. Up to 5633 conditions per place. [2021-08-13 17:54:14,855 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 65 selfloop transitions, 10 changer transitions 1/109 dead transitions. [2021-08-13 17:54:14,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 109 transitions, 476 flow [2021-08-13 17:54:14,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 17:54:14,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 17:54:14,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 17:54:14,859 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 17:54:14,859 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 17:54:14,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 17:54:14,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:14,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 17:54:14,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:14,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:54:14,867 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:54:14,867 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 32 predicate places. [2021-08-13 17:54:14,867 INFO L482 AbstractCegarLoop]: Abstraction has has 111 places, 109 transitions, 476 flow [2021-08-13 17:54:14,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:14,869 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:14,869 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] [2021-08-13 17:54:14,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 17:54:14,869 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:14,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:14,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1750664972, now seen corresponding path program 2 times [2021-08-13 17:54:14,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:14,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382199700] [2021-08-13 17:54:14,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:14,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:14,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:14,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:14,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:54:14,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:14,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 17:54:14,973 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 17:54:14,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 17:54:14,988 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 17:54:14,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 17:54:15,012 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 17:54:15,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 17:54:15,033 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 17:54:15,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 17:54:15,057 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 17:54:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 17:54:15,090 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 17:54:15,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 17:54:15,126 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 17:54:15,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 17:54:15,190 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 17:54:15,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 17:54:15,248 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 17:54:15,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 17:54:15,296 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 17:54:15,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:15,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382199700] [2021-08-13 17:54:15,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382199700] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:15,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:15,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 17:54:15,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300466449] [2021-08-13 17:54:15,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 17:54:15,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:15,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 17:54:15,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 17:54:15,300 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 17:54:15,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 109 transitions, 476 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:15,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:15,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 17:54:15,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:17,950 INFO L129 PetriNetUnfolder]: 16181/28922 cut-off events. [2021-08-13 17:54:17,951 INFO L130 PetriNetUnfolder]: For 9338/42430 co-relation queries the response was YES. [2021-08-13 17:54:18,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76833 conditions, 28922 events. 16181/28922 cut-off events. For 9338/42430 co-relation queries the response was YES. Maximal size of possible extension queue 2015. Compared 262628 event pairs, 1793 based on Foata normal form. 1/28535 useless extension candidates. Maximal degree in co-relation 76490. Up to 7706 conditions per place. [2021-08-13 17:54:18,299 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 277 selfloop transitions, 49 changer transitions 4/363 dead transitions. [2021-08-13 17:54:18,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 363 transitions, 2152 flow [2021-08-13 17:54:18,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 17:54:18,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 17:54:18,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 17:54:18,305 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 17:54:18,305 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 17:54:18,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 17:54:18,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:18,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 17:54:18,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:18,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:54:18,312 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:54:18,312 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 44 predicate places. [2021-08-13 17:54:18,312 INFO L482 AbstractCegarLoop]: Abstraction has has 123 places, 363 transitions, 2152 flow [2021-08-13 17:54:18,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:18,313 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:18,313 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] [2021-08-13 17:54:18,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 17:54:18,313 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:18,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:18,314 INFO L82 PathProgramCache]: Analyzing trace with hash -62375250, now seen corresponding path program 3 times [2021-08-13 17:54:18,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:18,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375190878] [2021-08-13 17:54:18,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:18,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:18,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:18,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:18,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:54:18,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:18,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 17:54:18,450 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 17:54:18,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 17:54:18,460 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 17:54:18,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 17:54:18,473 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 17:54:18,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 17:54:18,491 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 17:54:18,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 17:54:18,515 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 17:54:18,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 17:54:18,545 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 17:54:18,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 17:54:18,585 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 17:54:18,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 17:54:18,631 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 17:54:18,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 17:54:18,681 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 17:54:18,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 17:54:18,722 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 17:54:18,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:18,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375190878] [2021-08-13 17:54:18,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375190878] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:18,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:18,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 17:54:18,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498062322] [2021-08-13 17:54:18,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 17:54:18,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:18,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 17:54:18,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 17:54:18,725 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 17:54:18,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 363 transitions, 2152 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:18,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:18,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 17:54:18,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:22,284 INFO L129 PetriNetUnfolder]: 21639/41196 cut-off events. [2021-08-13 17:54:22,284 INFO L130 PetriNetUnfolder]: For 16701/104129 co-relation queries the response was YES. [2021-08-13 17:54:22,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137590 conditions, 41196 events. 21639/41196 cut-off events. For 16701/104129 co-relation queries the response was YES. Maximal size of possible extension queue 3158. Compared 421663 event pairs, 769 based on Foata normal form. 3/40710 useless extension candidates. Maximal degree in co-relation 136736. Up to 10829 conditions per place. [2021-08-13 17:54:23,024 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 858 selfloop transitions, 165 changer transitions 6/1062 dead transitions. [2021-08-13 17:54:23,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 1062 transitions, 8404 flow [2021-08-13 17:54:23,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 17:54:23,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 17:54:23,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 17:54:23,028 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 17:54:23,028 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 17:54:23,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 17:54:23,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:23,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 17:54:23,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:23,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:54:23,035 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:54:23,035 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 56 predicate places. [2021-08-13 17:54:23,035 INFO L482 AbstractCegarLoop]: Abstraction has has 135 places, 1062 transitions, 8404 flow [2021-08-13 17:54:23,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:23,036 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:23,036 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] [2021-08-13 17:54:23,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 17:54:23,036 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:23,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:23,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1739527962, now seen corresponding path program 4 times [2021-08-13 17:54:23,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:23,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900151890] [2021-08-13 17:54:23,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:23,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:23,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:23,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:23,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:54:23,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:23,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 17:54:23,093 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 17:54:23,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 17:54:23,103 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 17:54:23,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 17:54:23,116 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 17:54:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 17:54:23,134 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 17:54:23,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 17:54:23,158 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 17:54:23,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 17:54:23,190 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 17:54:23,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 17:54:23,228 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 17:54:23,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 17:54:23,278 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 17:54:23,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 17:54:23,335 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 17:54:23,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 17:54:23,384 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 17:54:23,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:23,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900151890] [2021-08-13 17:54:23,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900151890] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:23,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:23,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 17:54:23,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415401281] [2021-08-13 17:54:23,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 17:54:23,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:23,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 17:54:23,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 17:54:23,387 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 17:54:23,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 1062 transitions, 8404 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:23,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:23,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 17:54:23,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:54:31,319 INFO L129 PetriNetUnfolder]: 29265/56405 cut-off events. [2021-08-13 17:54:31,319 INFO L130 PetriNetUnfolder]: For 20749/175063 co-relation queries the response was YES. [2021-08-13 17:54:31,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227160 conditions, 56405 events. 29265/56405 cut-off events. For 20749/175063 co-relation queries the response was YES. Maximal size of possible extension queue 4853. Compared 614764 event pairs, 321 based on Foata normal form. 19/55890 useless extension candidates. Maximal degree in co-relation 225215. Up to 15339 conditions per place. [2021-08-13 17:54:32,117 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 2319 selfloop transitions, 503 changer transitions 8/2863 dead transitions. [2021-08-13 17:54:32,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 2863 transitions, 28472 flow [2021-08-13 17:54:32,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 17:54:32,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 17:54:32,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 17:54:32,120 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 17:54:32,120 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 17:54:32,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 17:54:32,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:54:32,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 17:54:32,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:32,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:54:32,126 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:54:32,127 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 68 predicate places. [2021-08-13 17:54:32,127 INFO L482 AbstractCegarLoop]: Abstraction has has 147 places, 2863 transitions, 28472 flow [2021-08-13 17:54:32,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:32,127 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:54:32,127 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] [2021-08-13 17:54:32,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 17:54:32,127 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:54:32,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:54:32,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1784972510, now seen corresponding path program 5 times [2021-08-13 17:54:32,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:54:32,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124072557] [2021-08-13 17:54:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:54:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:54:32,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:32,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:54:32,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:32,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:54:32,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:54:32,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 17:54:32,172 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 17:54:32,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 17:54:32,182 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 17:54:32,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 17:54:32,196 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 17:54:32,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 17:54:32,213 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 17:54:32,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 17:54:32,237 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-08-13 17:54:32,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-13 17:54:32,267 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 17:54:32,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 17:54:32,299 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 17:54:32,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 17:54:32,348 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 17:54:32,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 17:54:32,392 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 17:54:32,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 17:54:32,440 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 17:54:32,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:54:32,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124072557] [2021-08-13 17:54:32,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124072557] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:54:32,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:54:32,440 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 17:54:32,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325883607] [2021-08-13 17:54:32,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 17:54:32,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:54:32,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 17:54:32,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 17:54:32,442 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 17:54:32,443 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 2863 transitions, 28472 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:54:32,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:54:32,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 17:54:32,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:55:09,845 INFO L129 PetriNetUnfolder]: 43326/94365 cut-off events. [2021-08-13 17:55:09,845 INFO L130 PetriNetUnfolder]: For 58009/457239 co-relation queries the response was YES. [2021-08-13 17:55:10,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 430065 conditions, 94365 events. 43326/94365 cut-off events. For 58009/457239 co-relation queries the response was YES. Maximal size of possible extension queue 8545. Compared 1228964 event pairs, 129 based on Foata normal form. 85/93627 useless extension candidates. Maximal degree in co-relation 426029. Up to 25330 conditions per place. [2021-08-13 17:55:11,638 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 5720 selfloop transitions, 1032 changer transitions 10/6795 dead transitions. [2021-08-13 17:55:11,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 6795 transitions, 81316 flow [2021-08-13 17:55:11,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 17:55:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 17:55:11,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 17:55:11,642 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 17:55:11,642 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 17:55:11,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 17:55:11,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:55:11,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 17:55:11,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:55:11,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:55:11,648 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:55:11,648 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 80 predicate places. [2021-08-13 17:55:11,648 INFO L482 AbstractCegarLoop]: Abstraction has has 159 places, 6795 transitions, 81316 flow [2021-08-13 17:55:11,648 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:55:11,649 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:55:11,649 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] [2021-08-13 17:55:11,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 17:55:11,649 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:55:11,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:55:11,649 INFO L82 PathProgramCache]: Analyzing trace with hash -2140238052, now seen corresponding path program 6 times [2021-08-13 17:55:11,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:55:11,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846659898] [2021-08-13 17:55:11,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:55:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:55:11,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:55:11,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:55:11,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:55:11,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:55:11,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:55:11,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 17:55:11,693 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 17:55:11,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 17:55:11,702 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 17:55:11,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 17:55:11,715 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 17:55:11,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 17:55:11,732 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-08-13 17:55:11,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 17:55:11,756 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-08-13 17:55:11,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-13 17:55:11,787 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 17:55:11,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 17:55:11,822 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-08-13 17:55:11,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-08-13 17:55:11,860 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 17:55:11,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 17:55:11,905 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 17:55:11,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 17:55:11,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 17:55:11,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:55:11,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846659898] [2021-08-13 17:55:11,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846659898] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:55:11,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:55:11,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 17:55:11,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343137663] [2021-08-13 17:55:11,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 17:55:11,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:55:11,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 17:55:11,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 17:55:11,945 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 17:55:11,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 6795 transitions, 81316 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:55:11,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:55:11,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 17:55:11,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 17:58:59,572 INFO L129 PetriNetUnfolder]: 58710/122404 cut-off events. [2021-08-13 17:58:59,573 INFO L130 PetriNetUnfolder]: For 65990/1721086 co-relation queries the response was YES. [2021-08-13 17:59:01,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 652031 conditions, 122404 events. 58710/122404 cut-off events. For 65990/1721086 co-relation queries the response was YES. Maximal size of possible extension queue 12045. Compared 1591129 event pairs, 49 based on Foata normal form. 496/121581 useless extension candidates. Maximal degree in co-relation 645092. Up to 34573 conditions per place. [2021-08-13 17:59:02,040 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 12595 selfloop transitions, 2237 changer transitions 12/14877 dead transitions. [2021-08-13 17:59:02,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 14877 transitions, 207988 flow [2021-08-13 17:59:02,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 17:59:02,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 17:59:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2021-08-13 17:59:02,043 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9578754578754579 [2021-08-13 17:59:02,043 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2021-08-13 17:59:02,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2021-08-13 17:59:02,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 17:59:02,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2021-08-13 17:59:02,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 160.92307692307693) internal successors, (2092), 13 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:59:02,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:59:02,048 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 168.0) internal successors, (2352), 14 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 17:59:02,049 INFO L348 CegarLoopForPetriNet]: 79 programPoint places, 92 predicate places. [2021-08-13 17:59:02,049 INFO L482 AbstractCegarLoop]: Abstraction has has 171 places, 14877 transitions, 207988 flow [2021-08-13 17:59:02,049 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:59:02,049 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 17:59:02,049 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] [2021-08-13 17:59:02,049 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-13 17:59:02,049 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 17:59:02,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 17:59:02,050 INFO L82 PathProgramCache]: Analyzing trace with hash 935575850, now seen corresponding path program 7 times [2021-08-13 17:59:02,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 17:59:02,050 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038135131] [2021-08-13 17:59:02,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 17:59:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 17:59:02,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:59:02,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 17:59:02,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:59:02,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 17:59:02,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 17:59:02,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 17:59:02,089 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 17:59:02,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 17:59:02,097 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 17:59:02,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 17:59:02,113 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 17:59:02,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 17:59:02,130 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-08-13 17:59:02,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 17:59:02,154 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-08-13 17:59:02,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-13 17:59:02,186 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-08-13 17:59:02,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-08-13 17:59:02,219 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 17:59:02,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 17:59:02,258 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 17:59:02,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 17:59:02,302 INFO L142 QuantifierPusher]: treesize reduction 90, result has 47.4 percent of original size [2021-08-13 17:59:02,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 17:59:02,339 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 17:59:02,339 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 17:59:02,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038135131] [2021-08-13 17:59:02,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038135131] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 17:59:02,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 17:59:02,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-13 17:59:02,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131243145] [2021-08-13 17:59:02,340 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-08-13 17:59:02,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 17:59:02,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-13 17:59:02,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-08-13 17:59:02,341 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 168 [2021-08-13 17:59:02,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 14877 transitions, 207988 flow. Second operand has 13 states, 13 states have (on average 155.92307692307693) internal successors, (2027), 13 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 17:59:02,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 17:59:02,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 168 [2021-08-13 17:59:02,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-08-13 18:03:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 18:03:16,236 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-13 18:03:16,236 WARN L547 AbstractCegarLoop]: Verification canceled [2021-08-13 18:03:16,238 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 18:03:16,239 WARN L188 ceAbstractionStarter]: Timeout [2021-08-13 18:03:16,240 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 06:03:16 BasicIcfg [2021-08-13 18:03:16,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 18:03:16,240 INFO L168 Benchmark]: Toolchain (without parser) took 549165.24 ms. Allocated memory was 127.9 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 108.0 MB in the beginning and 2.9 GB in the end (delta: -2.7 GB). Peak memory consumption was 6.6 GB. Max. memory is 8.0 GB. [2021-08-13 18:03:16,240 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 127.9 MB. Free memory is still 109.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 18:03:16,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.80 ms. Allocated memory is still 127.9 MB. Free memory was 107.8 MB in the beginning and 106.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 18:03:16,241 INFO L168 Benchmark]: Boogie Preprocessor took 10.24 ms. Allocated memory is still 127.9 MB. Free memory was 106.5 MB in the beginning and 105.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 18:03:16,241 INFO L168 Benchmark]: RCFGBuilder took 190.23 ms. Allocated memory is still 127.9 MB. Free memory was 105.4 MB in the beginning and 92.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-13 18:03:16,241 INFO L168 Benchmark]: TraceAbstraction took 548941.54 ms. Allocated memory was 127.9 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 91.8 MB in the beginning and 2.9 GB in the end (delta: -2.8 GB). Peak memory consumption was 6.6 GB. Max. memory is 8.0 GB. [2021-08-13 18:03:16,241 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 127.9 MB. Free memory is still 109.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.80 ms. Allocated memory is still 127.9 MB. Free memory was 107.8 MB in the beginning and 106.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.24 ms. Allocated memory is still 127.9 MB. Free memory was 106.5 MB in the beginning and 105.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 190.23 ms. Allocated memory is still 127.9 MB. Free memory was 105.4 MB in the beginning and 92.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 548941.54 ms. Allocated memory was 127.9 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 91.8 MB in the beginning and 2.9 GB in the end (delta: -2.8 GB). Peak memory consumption was 6.6 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 35]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 155/168 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 172477 conditions, 24084 events (16087/24083 cut-off events. For 47514/7024760 co-relation queries the response was YES. Maximal size of possible extension queue 10618. Compared 230811 event pairs, 17 based on Foata normal form. 1664/35832 useless extension candidates. Maximal degree in co-relation 172441. Up to 16154 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 23 procedures, 103 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 752.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 548662.2ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 543654.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1057.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 466 SDtfs, 494 SDslu, 550 SDs, 0 SdLazy, 953 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 755.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2269.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=207988occurred in iteration=16, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.9ms SsaConstructionTime, 79.2ms SatisfiabilityAnalysisTime, 2921.1ms InterpolantComputationTime, 765 NumberOfCodeBlocks, 765 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 748 ConstructedInterpolants, 0 QuantifiedInterpolants, 16578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown