/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/weaver-benchmarks/generated/chl/file-item-trans.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 18:20:40,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 18:20:40,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 18:20:40,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 18:20:40,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 18:20:40,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 18:20:40,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 18:20:40,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 18:20:40,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 18:20:40,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 18:20:40,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 18:20:40,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 18:20:40,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 18:20:40,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 18:20:40,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 18:20:40,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 18:20:40,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 18:20:40,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 18:20:40,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 18:20:40,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 18:20:40,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 18:20:40,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 18:20:40,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 18:20:40,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 18:20:40,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 18:20:40,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 18:20:40,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 18:20:40,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 18:20:40,535 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 18:20:40,562 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 18:20:40,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 18:20:40,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 18:20:40,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 18:20:40,565 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 18:20:40,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 18:20:40,565 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 18:20:40,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 18:20:40,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 18:20:40,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 18:20:40,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 18:20:40,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 18:20:40,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 18:20:40,566 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 18:20:40,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 18:20:40,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 18:20:40,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 18:20:40,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 18:20:40,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 18:20:40,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 18:20:40,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 18:20:40,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 18:20:40,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 18:20:40,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 18:20:40,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 18:20:40,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 18:20:40,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 18:20:40,568 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 18:20:40,568 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 18:20:40,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 18:20:40,568 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 18:20:40,568 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 18:20:40,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 18:20:40,568 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 18:20:40,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 18:20:40,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 18:20:40,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 18:20:40,830 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 18:20:40,831 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 18:20:40,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/file-item-trans.wvr.bpl [2021-08-13 18:20:40,832 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/file-item-trans.wvr.bpl' [2021-08-13 18:20:40,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 18:20:40,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 18:20:40,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 18:20:40,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 18:20:40,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 18:20:40,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (1/1) ... [2021-08-13 18:20:40,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (1/1) ... [2021-08-13 18:20:40,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 18:20:40,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 18:20:40,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 18:20:40,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 18:20:40,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (1/1) ... [2021-08-13 18:20:40,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (1/1) ... [2021-08-13 18:20:40,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (1/1) ... [2021-08-13 18:20:40,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (1/1) ... [2021-08-13 18:20:40,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (1/1) ... [2021-08-13 18:20:40,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (1/1) ... [2021-08-13 18:20:40,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (1/1) ... [2021-08-13 18:20:40,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 18:20:40,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 18:20:40,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 18:20:40,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 18:20:40,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (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 18:20:40,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-13 18:20:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-13 18:20:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-13 18:20:40,963 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-13 18:20:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-13 18:20:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-13 18:20:40,963 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 18:20:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 18:20:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 18:20:40,963 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-13 18:20:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-13 18:20:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-13 18:20:40,965 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 18:20:41,073 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 18:20:41,074 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 18:20:41,075 INFO L202 PluginConnector]: Adding new model file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 06:20:41 BoogieIcfgContainer [2021-08-13 18:20:41,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 18:20:41,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 18:20:41,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 18:20:41,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 18:20:41,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 06:20:40" (1/2) ... [2021-08-13 18:20:41,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a536ab3 and model type file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 06:20:41, skipping insertion in model container [2021-08-13 18:20:41,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 06:20:41" (2/2) ... [2021-08-13 18:20:41,087 INFO L111 eAbstractionObserver]: Analyzing ICFG file-item-trans.wvr.bpl [2021-08-13 18:20:41,090 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 18:20:41,091 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 18:20:41,091 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 18:20:41,114 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-08-13 18:20:41,128 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-13 18:20:41,140 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 18:20:41,140 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 18:20:41,141 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 18:20:41,141 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 18:20:41,141 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 18:20:41,141 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 18:20:41,141 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 18:20:41,141 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 18:20:41,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2021-08-13 18:20:41,168 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-08-13 18:20:41,169 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-08-13 18:20:41,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 18:20:41,170 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 19 transitions, 62 flow [2021-08-13 18:20:41,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 14 transitions, 46 flow [2021-08-13 18:20:41,178 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-08-13 18:20:41,178 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-08-13 18:20:41,178 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:20:41,178 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:20:41,179 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:20:41,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:20:41,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1083414778, now seen corresponding path program 1 times [2021-08-13 18:20:41,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:20:41,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707813456] [2021-08-13 18:20:41,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:20:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:20:41,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:41,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:41,346 INFO L142 QuantifierPusher]: treesize reduction 16, result has 56.8 percent of original size [2021-08-13 18:20:41,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 18:20:41,405 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-08-13 18:20:41,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:20:41,467 INFO L142 QuantifierPusher]: treesize reduction 14, result has 61.1 percent of original size [2021-08-13 18:20:41,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:20:41,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:41,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:41,491 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 18:20:41,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:20:41,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707813456] [2021-08-13 18:20:41,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707813456] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:20:41,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:20:41,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:20:41,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740258976] [2021-08-13 18:20:41,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:20:41,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:20:41,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:20:41,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:20:41,517 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 18:20:41,520 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:41,520 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:20:41,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 18:20:41,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:20:41,676 INFO L129 PetriNetUnfolder]: 3/40 cut-off events. [2021-08-13 18:20:41,676 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-08-13 18:20:41,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 40 events. 3/40 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 119 event pairs, 1 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 50. Up to 7 conditions per place. [2021-08-13 18:20:41,678 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 5 selfloop transitions, 2 changer transitions 1/18 dead transitions. [2021-08-13 18:20:41,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 70 flow [2021-08-13 18:20:41,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:20:41,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:20:41,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-08-13 18:20:41,685 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8315789473684211 [2021-08-13 18:20:41,685 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-08-13 18:20:41,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-08-13 18:20:41,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:20:41,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-08-13 18:20:41,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 18:20:41,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:41,691 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:41,692 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 4 predicate places. [2021-08-13 18:20:41,692 INFO L482 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 70 flow [2021-08-13 18:20:41,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:41,692 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:20:41,692 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:20:41,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 18:20:41,692 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:20:41,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:20:41,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1676293040, now seen corresponding path program 2 times [2021-08-13 18:20:41,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:20:41,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278239102] [2021-08-13 18:20:41,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:20:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:20:41,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:41,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:41,756 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-08-13 18:20:41,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 18:20:41,799 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.6 percent of original size [2021-08-13 18:20:41,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-08-13 18:20:41,883 INFO L142 QuantifierPusher]: treesize reduction 29, result has 49.1 percent of original size [2021-08-13 18:20:41,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-08-13 18:20:41,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:41,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:41,898 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 18:20:41,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:20:41,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278239102] [2021-08-13 18:20:41,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278239102] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:20:41,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:20:41,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:20:41,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301013025] [2021-08-13 18:20:41,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:20:41,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:20:41,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:20:41,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:20:41,901 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 18:20:41,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:41,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:20:41,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 18:20:41,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:20:42,027 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2021-08-13 18:20:42,169 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-08-13 18:20:42,180 INFO L129 PetriNetUnfolder]: 2/45 cut-off events. [2021-08-13 18:20:42,180 INFO L130 PetriNetUnfolder]: For 21/29 co-relation queries the response was YES. [2021-08-13 18:20:42,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 45 events. 2/45 cut-off events. For 21/29 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 157 event pairs, 0 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 70. Up to 8 conditions per place. [2021-08-13 18:20:42,181 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 5 selfloop transitions, 3 changer transitions 4/22 dead transitions. [2021-08-13 18:20:42,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 110 flow [2021-08-13 18:20:42,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:20:42,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:20:42,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-08-13 18:20:42,182 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8315789473684211 [2021-08-13 18:20:42,182 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-08-13 18:20:42,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-08-13 18:20:42,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:20:42,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-08-13 18:20:42,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 18:20:42,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:42,184 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:42,184 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2021-08-13 18:20:42,184 INFO L482 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 110 flow [2021-08-13 18:20:42,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:42,185 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:20:42,185 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:20:42,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 18:20:42,185 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:20:42,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:20:42,185 INFO L82 PathProgramCache]: Analyzing trace with hash 746710662, now seen corresponding path program 3 times [2021-08-13 18:20:42,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:20:42,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949209391] [2021-08-13 18:20:42,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:20:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:20:42,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:42,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:42,217 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-08-13 18:20:42,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-08-13 18:20:42,232 INFO L142 QuantifierPusher]: treesize reduction 8, result has 79.5 percent of original size [2021-08-13 18:20:42,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 18:20:42,248 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-08-13 18:20:42,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-08-13 18:20:42,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:42,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:42,261 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 18:20:42,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:20:42,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949209391] [2021-08-13 18:20:42,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949209391] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:20:42,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:20:42,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:20:42,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441955866] [2021-08-13 18:20:42,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:20:42,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:20:42,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:20:42,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:20:42,263 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 18:20:42,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 110 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:42,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:20:42,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 18:20:42,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:20:42,361 INFO L129 PetriNetUnfolder]: 1/48 cut-off events. [2021-08-13 18:20:42,362 INFO L130 PetriNetUnfolder]: For 38/46 co-relation queries the response was YES. [2021-08-13 18:20:42,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 48 events. 1/48 cut-off events. For 38/46 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 192 event pairs, 0 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 87. Up to 8 conditions per place. [2021-08-13 18:20:42,362 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 7 selfloop transitions, 3 changer transitions 6/26 dead transitions. [2021-08-13 18:20:42,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 26 transitions, 166 flow [2021-08-13 18:20:42,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:20:42,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:20:42,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 79 transitions. [2021-08-13 18:20:42,363 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8315789473684211 [2021-08-13 18:20:42,364 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 79 transitions. [2021-08-13 18:20:42,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 79 transitions. [2021-08-13 18:20:42,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:20:42,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 79 transitions. [2021-08-13 18:20:42,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 18:20:42,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:42,365 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:42,365 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 12 predicate places. [2021-08-13 18:20:42,365 INFO L482 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 166 flow [2021-08-13 18:20:42,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:42,366 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:20:42,366 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:20:42,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 18:20:42,366 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:20:42,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:20:42,366 INFO L82 PathProgramCache]: Analyzing trace with hash 180987596, now seen corresponding path program 4 times [2021-08-13 18:20:42,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:20:42,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343232892] [2021-08-13 18:20:42,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:20:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:20:42,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:42,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:42,393 INFO L142 QuantifierPusher]: treesize reduction 15, result has 59.5 percent of original size [2021-08-13 18:20:42,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:20:42,417 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-08-13 18:20:42,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:20:42,445 INFO L142 QuantifierPusher]: treesize reduction 14, result has 61.1 percent of original size [2021-08-13 18:20:42,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-08-13 18:20:42,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:42,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:42,456 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 18:20:42,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:20:42,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343232892] [2021-08-13 18:20:42,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343232892] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:20:42,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:20:42,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:20:42,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99749697] [2021-08-13 18:20:42,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:20:42,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:20:42,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:20:42,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:20:42,458 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 18:20:42,458 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:42,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:20:42,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 18:20:42,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:20:42,537 INFO L129 PetriNetUnfolder]: 1/46 cut-off events. [2021-08-13 18:20:42,537 INFO L130 PetriNetUnfolder]: For 64/91 co-relation queries the response was YES. [2021-08-13 18:20:42,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 46 events. 1/46 cut-off events. For 64/91 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 178 event pairs, 0 based on Foata normal form. 6/52 useless extension candidates. Maximal degree in co-relation 101. Up to 7 conditions per place. [2021-08-13 18:20:42,538 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 5 selfloop transitions, 1 changer transitions 9/25 dead transitions. [2021-08-13 18:20:42,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 188 flow [2021-08-13 18:20:42,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:20:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:20:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-08-13 18:20:42,539 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8210526315789474 [2021-08-13 18:20:42,539 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-08-13 18:20:42,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-08-13 18:20:42,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:20:42,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-08-13 18:20:42,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 18:20:42,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:42,540 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:42,540 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 16 predicate places. [2021-08-13 18:20:42,540 INFO L482 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 188 flow [2021-08-13 18:20:42,540 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:42,540 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:20:42,541 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:20:42,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 18:20:42,541 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:20:42,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:20:42,541 INFO L82 PathProgramCache]: Analyzing trace with hash 865899794, now seen corresponding path program 5 times [2021-08-13 18:20:42,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:20:42,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529181435] [2021-08-13 18:20:42,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:20:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:20:42,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:42,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:42,568 INFO L142 QuantifierPusher]: treesize reduction 15, result has 67.4 percent of original size [2021-08-13 18:20:42,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 18:20:42,614 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-08-13 18:20:42,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 18:20:42,665 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-08-13 18:20:42,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-08-13 18:20:42,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:42,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:42,678 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 18:20:42,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:20:42,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529181435] [2021-08-13 18:20:42,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529181435] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:20:42,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:20:42,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:20:42,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059380184] [2021-08-13 18:20:42,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:20:42,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:20:42,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:20:42,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:20:42,680 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 18:20:42,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:42,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:20:42,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 18:20:42,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:20:42,777 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-08-13 18:20:42,778 INFO L130 PetriNetUnfolder]: For 87/99 co-relation queries the response was YES. [2021-08-13 18:20:42,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 52 events. 0/52 cut-off events. For 87/99 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 237 event pairs, 0 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-08-13 18:20:42,778 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 3 selfloop transitions, 1 changer transitions 12/26 dead transitions. [2021-08-13 18:20:42,778 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 26 transitions, 230 flow [2021-08-13 18:20:42,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:20:42,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:20:42,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-08-13 18:20:42,779 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8210526315789474 [2021-08-13 18:20:42,779 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-08-13 18:20:42,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-08-13 18:20:42,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:20:42,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-08-13 18:20:42,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 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 18:20:42,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:42,780 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:42,780 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 20 predicate places. [2021-08-13 18:20:42,780 INFO L482 AbstractCegarLoop]: Abstraction has has 44 places, 26 transitions, 230 flow [2021-08-13 18:20:42,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:42,781 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 18:20:42,781 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 18:20:42,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 18:20:42,781 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-13 18:20:42,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 18:20:42,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1296085392, now seen corresponding path program 6 times [2021-08-13 18:20:42,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 18:20:42,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135939980] [2021-08-13 18:20:42,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 18:20:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 18:20:42,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:42,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:42,804 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-08-13 18:20:42,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-08-13 18:20:42,813 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-08-13 18:20:42,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 18:20:42,826 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-08-13 18:20:42,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-08-13 18:20:42,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 18:20:42,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 18:20:42,836 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 18:20:42,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 18:20:42,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135939980] [2021-08-13 18:20:42,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135939980] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 18:20:42,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 18:20:42,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-13 18:20:42,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169491984] [2021-08-13 18:20:42,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-08-13 18:20:42,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 18:20:42,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-13 18:20:42,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-13 18:20:42,838 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 19 [2021-08-13 18:20:42,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 26 transitions, 230 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:42,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 18:20:42,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 19 [2021-08-13 18:20:42,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 18:20:42,907 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-08-13 18:20:42,907 INFO L130 PetriNetUnfolder]: For 111/131 co-relation queries the response was YES. [2021-08-13 18:20:42,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 50 events. 0/50 cut-off events. For 111/131 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 235 event pairs, 0 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-08-13 18:20:42,907 INFO L132 encePairwiseOnDemand]: 15/19 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2021-08-13 18:20:42,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 24 transitions, 246 flow [2021-08-13 18:20:42,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-13 18:20:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-08-13 18:20:42,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2021-08-13 18:20:42,908 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8105263157894737 [2021-08-13 18:20:42,908 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 77 transitions. [2021-08-13 18:20:42,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 77 transitions. [2021-08-13 18:20:42,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 18:20:42,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 77 transitions. [2021-08-13 18:20:42,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 18:20:42,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:42,909 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 18:20:42,909 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 22 predicate places. [2021-08-13 18:20:42,910 INFO L482 AbstractCegarLoop]: Abstraction has has 46 places, 24 transitions, 246 flow [2021-08-13 18:20:42,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 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 18:20:42,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 18:21:25,273 INFO L742 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 7455 in 42360989057ns [2021-08-13 18:21:25,275 INFO L113 kiGriesValidityCheck]: 7#(or (and v_np3_1 (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) (not v_np9_1) v_np6_1 v_np11_1 (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (not v_np7_1)) (and (not v_np3_1) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) (not v_np9_1) v_np6_1 (not v_np18_1) (not v_np11_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (not v_np7_1)) (and (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np5_1) (not v_np7_1) (not v_np3_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np4_1 (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np12_1) (not v_np13_1)) (and (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np5_1) (not v_np7_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) v_np3_1 (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np4_1 (not v_np9_1) v_np6_1 (not v_np11_1) (not v_np12_1) (not v_np13_1)) (and (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np5_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) v_np3_1 (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) (not v_np9_1) v_np6_1 v_np7_1 (not v_np11_1) (not v_np12_1) (not v_np13_1) (not v_np4_1)) (and (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (or (= result_10 0) (= (+ result_10 1) 0) (and (not filename_2) (not isNull_0) (or (<= (+ filename_1 result_10) (+ filename_4 result_11)) filename_5)) isNull_3 (= result_11 1)) (or (= result_10 0) (= (+ result_10 1) 0) (= result_11 1) (= (+ result_9 1) 0) (<= (+ result_10 result_9) result_11) (= result_9 0)) (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np18_1) (or (and (not isNull_3) (not filename_5) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) (and (not isNull_3) isNull_6) (= result_9 0)) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np3_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) (not v_np9_1) v_np5_1 (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) v_np6_1 v_np7_1 (not v_np11_1) (not v_np12_1) (not v_np13_1) (not v_np4_1)) (and (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (or (= result_10 0) (= (+ result_10 1) 0) (and (not filename_2) (not isNull_0) (or (<= (+ filename_1 result_10) (+ filename_4 result_11)) filename_5)) isNull_3 (= result_11 1)) (or (= result_10 0) (= (+ result_10 1) 0) (= result_11 1) (= (+ result_9 1) 0) (<= (+ result_10 result_9) result_11)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (or (= result_10 0) (= (+ result_10 1) 0) (and (not isNull_6) (or isNull_0 filename_2 (<= (+ result_10 result_9 filename_7) filename_1)) (not filename_8)) (= (+ result_9 1) 0) (= result_9 0)) (not v_np18_1) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np5_1) (not v_np3_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) (not v_np9_1) (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) v_np6_1 v_np7_1 (not v_np11_1) v_np12_1 (not v_np13_1) (not v_np4_1) (or (and (not isNull_3) (or (not filename_5) filename_8) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) isNull_6)) (and (not v_np18_1) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (and (not isNull_3) (not filename_5) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) (and (not isNull_3) isNull_6) (= result_9 0)) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np5_1) (not v_np7_1) (not v_np3_1) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) (not v_np9_1) (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) v_np6_1 v_np11_1 v_np12_1 (not v_np13_1) (not v_np4_1)) (and (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (or (= result_10 0) (= (+ result_10 1) 0) (= result_11 1) (= (+ result_9 1) 0) (<= (+ result_10 result_9) result_11) (= result_9 0)) (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np18_1) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (and (not isNull_3) (not filename_5) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) (and (not isNull_3) isNull_6) (= result_9 0)) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np5_1) (not v_np7_1) (not v_np3_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np4_1 (not v_np9_1) (or (= (+ result_10 1) 0) isNull_3 (= result_11 1) (and (or (= result_10 0) (and (not filename_2) (<= (+ filename_1 result_10) (+ filename_4 result_11))) filename_5) (not isNull_0))) (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) v_np6_1 (not v_np11_1) v_np12_1 (not v_np13_1)) (and (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (or (and (or (not filename_2) (and (= result_9 1) (not filename_8))) (or filename_2 (and (or (= result_9 1) (not isNull_0)) (not filename_8) (<= (+ result_10 result_9 filename_7) filename_1)))) (= result_10 0) (= (+ result_10 1) 0) (= (+ result_9 1) 0) (and (or (= result_9 1) (not isNull_0)) (or isNull_0 (= result_9 0))) (and (= result_10 1) isNull_0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np5_1) (not v_np3_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) (not v_np9_1) v_np6_1 v_np7_1 (not v_np11_1) (not v_np12_1) (not v_np13_1) (not v_np4_1)) (and (not v_np3_1) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) (not v_np9_1) v_np6_1 v_np11_1 (not v_np18_1) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np5_1) (not v_np12_1) (not v_np13_1) (not v_np4_1) (not v_np7_1)) (and (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or filename_5 (and (or (= result_10 0) (not filename_8)) (or filename_8 (= filename_4 (+ result_10 filename_7))))))) (or (= result_10 0) (= (+ result_10 1) 0) (= result_11 1) (= (+ result_9 1) 0) (<= (+ result_10 result_9) result_11) (= result_9 0)) (or (= (+ result_10 1) 0) isNull_3 (and (not isNull_6) (or (and (= filename_4 (+ result_10 filename_7)) (not filename_8)) filename_5))) (not v_np18_1) (or (= result_10 0) (= (+ result_10 1) 0) (and (not isNull_6) (or isNull_0 filename_2 (<= (+ result_10 result_9 filename_7) filename_1)) (not filename_8)) (= (+ result_9 1) 0) (= result_9 0)) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np7_1) (not v_np3_1) (or (not isNull_3) (= result_10 0) (and (not isNull_6) (= result_10 1))) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) v_np4_1 (not v_np9_1) v_np5_1 (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) (or (= (+ result_10 1) 0) isNull_3 (= result_11 1) (and (or (= result_10 0) (and (not filename_2) (<= (+ filename_1 result_10) (+ filename_4 result_11))) filename_5) (not isNull_0))) v_np6_1 (not v_np11_1) (not v_np12_1) (not v_np13_1) (or (and (not isNull_3) (or (not filename_5) filename_8) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) isNull_6)) (and (not v_np18_1) (or filename_8 (= result_11 1) (and (not filename_2) (not isNull_0) (= filename_1 (+ filename_7 result_11))) isNull_6) (or (and (not isNull_3) (not filename_5) (or filename_8 (<= (+ filename_4 result_9) (+ filename_7 result_11)))) (= result_11 1) (= (+ result_9 1) 0) (and (not isNull_3) isNull_6) (= result_9 0)) (or (= (+ result_9 1) 0) (and (or (not isNull_3) (= result_9 0)) (or isNull_0 isNull_3 (and (not filename_5) (= filename_1 (+ result_9 filename_4))) filename_2))) (not v_np7_1) (not v_np3_1) (or (and (not isNull_3) (or (= filename_1 (+ result_9 filename_4)) filename_2) (or (not filename_5) filename_2)) isNull_0 (= (+ result_9 1) 0)) (not v_np9_1) v_np5_1 (or (= result_11 1) (and (or filename_8 isNull_6 (and (not filename_2) (= filename_1 (+ filename_7 result_11)))) (or isNull_6 (not isNull_0)))) v_np6_1 v_np11_1 (not v_np12_1) (not v_np13_1) (not v_np4_1))) [2021-08-13 18:21:25,289 INFO L748 CegarLoopForPetriNet]: Checked inductivity and non-interference of Owicki-Gries annotation in 17674119ns [2021-08-13 18:21:25,289 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Invalid Owicki-Gries annotation at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:230) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-13 18:21:25,292 INFO L168 Benchmark]: Toolchain (without parser) took 44416.00 ms. Allocated memory was 224.4 MB in the beginning and 606.1 MB in the end (delta: 381.7 MB). Free memory was 204.0 MB in the beginning and 469.0 MB in the end (delta: -265.0 MB). Peak memory consumption was 117.7 MB. Max. memory is 8.0 GB. [2021-08-13 18:21:25,292 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 224.4 MB. Free memory was 205.1 MB in the beginning and 205.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 18:21:25,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.49 ms. Allocated memory is still 224.4 MB. Free memory was 203.9 MB in the beginning and 202.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 18:21:25,293 INFO L168 Benchmark]: Boogie Preprocessor took 16.72 ms. Allocated memory is still 224.4 MB. Free memory was 202.4 MB in the beginning and 201.5 MB in the end (delta: 987.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 18:21:25,293 INFO L168 Benchmark]: RCFGBuilder took 160.76 ms. Allocated memory is still 224.4 MB. Free memory was 201.5 MB in the beginning and 191.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-08-13 18:21:25,293 INFO L168 Benchmark]: TraceAbstraction took 44215.07 ms. Allocated memory was 224.4 MB in the beginning and 606.1 MB in the end (delta: 381.7 MB). Free memory was 190.6 MB in the beginning and 469.0 MB in the end (delta: -278.5 MB). Peak memory consumption was 104.1 MB. Max. memory is 8.0 GB. [2021-08-13 18:21:25,295 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 0.11 ms. Allocated memory is still 224.4 MB. Free memory was 205.1 MB in the beginning and 205.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.49 ms. Allocated memory is still 224.4 MB. Free memory was 203.9 MB in the beginning and 202.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.72 ms. Allocated memory is still 224.4 MB. Free memory was 202.4 MB in the beginning and 201.5 MB in the end (delta: 987.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 160.76 ms. Allocated memory is still 224.4 MB. Free memory was 201.5 MB in the beginning and 191.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 44215.07 ms. Allocated memory was 224.4 MB in the beginning and 606.1 MB in the end (delta: 381.7 MB). Free memory was 190.6 MB in the beginning and 469.0 MB in the end (delta: -278.5 MB). Peak memory consumption was 104.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Invalid Owicki-Gries annotation de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Invalid Owicki-Gries annotation: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...