/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 05:16:01,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 05:16:01,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 05:16:01,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 05:16:01,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 05:16:01,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 05:16:01,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 05:16:01,424 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-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 05:16:01,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 05:16:01,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 05:16:01,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 05:16:01,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 05:16:01,461 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 05:16:01,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 05:16:01,462 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 05:16:01,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 05:16:01,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 05:16:01,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 05:16:01,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 05:16:01,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 05:16:01,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 05:16:01,463 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 05:16:01,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 05:16:01,463 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 05:16:01,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 05:16:01,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 05:16:01,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 05:16:01,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 05:16:01,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 05:16:01,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 05:16:01,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 05:16:01,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 05:16:01,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 05:16:01,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 05:16:01,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 05:16:01,465 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 05:16:01,465 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 05:16:01,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 05:16:01,465 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 05:16:01,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 05:16:01,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 05:16:01,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 05:16:01,814 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 05:16:01,816 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 05:16:01,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl [2021-03-26 05:16:01,817 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier-loop.wvr.bpl' [2021-03-26 05:16:01,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 05:16:01,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 05:16:01,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 05:16:01,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 05:16:01,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 05:16:01,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/1) ... [2021-03-26 05:16:01,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/1) ... [2021-03-26 05:16:01,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 05:16:01,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 05:16:01,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 05:16:01,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 05:16:01,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/1) ... [2021-03-26 05:16:01,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/1) ... [2021-03-26 05:16:01,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/1) ... [2021-03-26 05:16:01,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/1) ... [2021-03-26 05:16:01,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/1) ... [2021-03-26 05:16:01,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/1) ... [2021-03-26 05:16:01,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/1) ... [2021-03-26 05:16:01,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 05:16:01,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 05:16:01,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 05:16:01,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 05:16:01,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 05:16:01,952 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 05:16:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 05:16:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 05:16:01,952 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 05:16:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 05:16:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 05:16:01,953 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 05:16:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 05:16:01,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 05:16:01,953 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-26 05:16:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-26 05:16:01,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-26 05:16:01,953 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-26 05:16:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-26 05:16:01,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-26 05:16:01,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-03-26 05:16:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-03-26 05:16:01,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-03-26 05:16:01,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-03-26 05:16:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-03-26 05:16:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-03-26 05:16:01,960 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 05:16:02,119 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 05:16:02,119 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-26 05:16:02,121 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:16:02 BoogieIcfgContainer [2021-03-26 05:16:02,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 05:16:02,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 05:16:02,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 05:16:02,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 05:16:02,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:16:01" (1/2) ... [2021-03-26 05:16:02,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d88db68 and model type barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 05:16:02, skipping insertion in model container [2021-03-26 05:16:02,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:16:02" (2/2) ... [2021-03-26 05:16:02,128 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier-loop.wvr.bpl [2021-03-26 05:16:02,132 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 05:16:02,135 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 05:16:02,136 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 05:16:02,295 INFO L149 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-03-26 05:16:02,309 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-03-26 05:16:02,325 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 05:16:02,326 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 05:16:02,326 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 05:16:02,326 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 05:16:02,326 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 05:16:02,326 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 05:16:02,326 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 05:16:02,326 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 05:16:02,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 73 transitions, 218 flow [2021-03-26 05:16:02,374 INFO L129 PetriNetUnfolder]: 8/61 cut-off events. [2021-03-26 05:16:02,374 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-26 05:16:02,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 61 events. 8/61 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 190 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2021-03-26 05:16:02,380 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 73 transitions, 218 flow [2021-03-26 05:16:02,385 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 59 transitions, 166 flow [2021-03-26 05:16:02,386 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:02,398 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 59 transitions, 166 flow [2021-03-26 05:16:02,401 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 59 transitions, 166 flow [2021-03-26 05:16:02,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 59 transitions, 166 flow [2021-03-26 05:16:02,418 INFO L129 PetriNetUnfolder]: 8/59 cut-off events. [2021-03-26 05:16:02,418 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-26 05:16:02,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 59 events. 8/59 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 183 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2021-03-26 05:16:02,422 INFO L142 LiptonReduction]: Number of co-enabled transitions 1888 [2021-03-26 05:16:02,506 INFO L154 LiptonReduction]: Checked pairs total: 600 [2021-03-26 05:16:02,506 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 05:16:02,508 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 123 [2021-03-26 05:16:02,530 INFO L129 PetriNetUnfolder]: 8/57 cut-off events. [2021-03-26 05:16:02,530 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-26 05:16:02,530 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:02,531 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:02,531 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thread1Err3INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Thread1of1ForFork3Err9INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread1Thread1of1ForFork2Err1INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:02,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:02,536 INFO L82 PathProgramCache]: Analyzing trace with hash -871171209, now seen corresponding path program 1 times [2021-03-26 05:16:02,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:02,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698213413] [2021-03-26 05:16:02,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:02,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:02,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 05:16:02,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:16:02,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698213413] [2021-03-26 05:16:02,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:02,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 05:16:02,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827924700] [2021-03-26 05:16:02,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 05:16:02,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:02,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 05:16:02,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 05:16:02,737 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 78 [2021-03-26 05:16:02,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:02,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:02,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 78 [2021-03-26 05:16:02,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:03,234 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([203] thread4EXIT-->L119: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar0_4 4) (= v_thread4Thread1of1ForFork3_thidvar3_4 4) (= v_thread4Thread1of1ForFork3_thidvar1_4 4) (= v_thread4Thread1of1ForFork3_thidvar2_4 4)) InVars {thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} AuxVars[] AssignedVars[][60], [thread3Thread1of1ForFork1NotInUse, thread5Thread1of1ForFork4NotInUse, thread4Thread1of1ForFork3NotInUse, thread1Thread1of1ForFork2NotInUse, 88#true, 72#L119true, thread6Thread1of1ForFork5NotInUse, thread2Thread1of1ForFork0NotInUse]) [2021-03-26 05:16:03,234 INFO L384 tUnfolder$Statistics]: this new event has 29 ancestors and is not cut-off event [2021-03-26 05:16:03,235 INFO L387 tUnfolder$Statistics]: existing Event has 37 ancestors and is not cut-off event [2021-03-26 05:16:03,235 INFO L387 tUnfolder$Statistics]: existing Event has 37 ancestors and is not cut-off event [2021-03-26 05:16:03,235 INFO L387 tUnfolder$Statistics]: existing Event has 29 ancestors and is not cut-off event [2021-03-26 05:16:03,272 INFO L129 PetriNetUnfolder]: 1975/3928 cut-off events. [2021-03-26 05:16:03,272 INFO L130 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2021-03-26 05:16:03,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6571 conditions, 3928 events. 1975/3928 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 28997 event pairs, 737 based on Foata normal form. 1/3649 useless extension candidates. Maximal degree in co-relation 6543. Up to 2309 conditions per place. [2021-03-26 05:16:03,328 INFO L132 encePairwiseOnDemand]: 72/78 looper letters, 21 selfloop transitions, 5 changer transitions 0/66 dead transitions. [2021-03-26 05:16:03,328 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 66 transitions, 232 flow [2021-03-26 05:16:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 05:16:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 05:16:03,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2021-03-26 05:16:03,341 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8589743589743589 [2021-03-26 05:16:03,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2021-03-26 05:16:03,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2021-03-26 05:16:03,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:03,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2021-03-26 05:16:03,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,353 INFO L185 Difference]: Start difference. First operand has 69 places, 58 transitions, 164 flow. Second operand 3 states and 201 transitions. [2021-03-26 05:16:03,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 66 transitions, 232 flow [2021-03-26 05:16:03,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 66 transitions, 200 flow, removed 0 selfloop flow, removed 12 redundant places. [2021-03-26 05:16:03,367 INFO L241 Difference]: Finished difference. Result has 60 places, 62 transitions, 165 flow [2021-03-26 05:16:03,368 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=60, PETRI_TRANSITIONS=62} [2021-03-26 05:16:03,369 INFO L343 CegarLoopForPetriNet]: 69 programPoint places, -9 predicate places. [2021-03-26 05:16:03,369 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:03,370 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 62 transitions, 165 flow [2021-03-26 05:16:03,370 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 62 transitions, 165 flow [2021-03-26 05:16:03,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 62 transitions, 165 flow [2021-03-26 05:16:03,391 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([203] thread4EXIT-->L119: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar0_4 4) (= v_thread4Thread1of1ForFork3_thidvar3_4 4) (= v_thread4Thread1of1ForFork3_thidvar1_4 4) (= v_thread4Thread1of1ForFork3_thidvar2_4 4)) InVars {thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} AuxVars[] AssignedVars[][48], [88#true, 72#L119true, Black: 90#(and (= y_1 y_9) (= x_0 x_8))]) [2021-03-26 05:16:03,392 INFO L384 tUnfolder$Statistics]: this new event has 45 ancestors and is cut-off event [2021-03-26 05:16:03,392 INFO L387 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2021-03-26 05:16:03,392 INFO L387 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2021-03-26 05:16:03,392 INFO L387 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2021-03-26 05:16:03,393 INFO L129 PetriNetUnfolder]: 78/255 cut-off events. [2021-03-26 05:16:03,393 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 05:16:03,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 255 events. 78/255 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1163 event pairs, 6 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 311. Up to 63 conditions per place. [2021-03-26 05:16:03,401 INFO L142 LiptonReduction]: Number of co-enabled transitions 2008 [2021-03-26 05:16:03,423 INFO L154 LiptonReduction]: Checked pairs total: 37 [2021-03-26 05:16:03,423 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:03,423 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-26 05:16:03,426 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 62 transitions, 165 flow [2021-03-26 05:16:03,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,426 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:03,426 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:03,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 05:16:03,427 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thread1Err3INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Thread1of1ForFork3Err9INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread1Thread1of1ForFork2Err1INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:03,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:03,428 INFO L82 PathProgramCache]: Analyzing trace with hash -992939024, now seen corresponding path program 1 times [2021-03-26 05:16:03,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:03,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50428613] [2021-03-26 05:16:03,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:03,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:03,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:03,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:03,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 05:16:03,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:03,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:03,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:16:03,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50428613] [2021-03-26 05:16:03,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:03,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 05:16:03,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033505318] [2021-03-26 05:16:03,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 05:16:03,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:03,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 05:16:03,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 05:16:03,467 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 78 [2021-03-26 05:16:03,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 62 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:03,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 78 [2021-03-26 05:16:03,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:03,515 INFO L129 PetriNetUnfolder]: 101/344 cut-off events. [2021-03-26 05:16:03,516 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 05:16:03,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 344 events. 101/344 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1667 event pairs, 14 based on Foata normal form. 6/283 useless extension candidates. Maximal degree in co-relation 444. Up to 84 conditions per place. [2021-03-26 05:16:03,520 INFO L132 encePairwiseOnDemand]: 73/78 looper letters, 3 selfloop transitions, 4 changer transitions 0/64 dead transitions. [2021-03-26 05:16:03,520 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 183 flow [2021-03-26 05:16:03,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 05:16:03,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 05:16:03,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2021-03-26 05:16:03,527 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9572649572649573 [2021-03-26 05:16:03,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2021-03-26 05:16:03,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2021-03-26 05:16:03,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:03,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2021-03-26 05:16:03,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,534 INFO L185 Difference]: Start difference. First operand has 60 places, 62 transitions, 165 flow. Second operand 3 states and 224 transitions. [2021-03-26 05:16:03,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 183 flow [2021-03-26 05:16:03,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 05:16:03,537 INFO L241 Difference]: Finished difference. Result has 63 places, 64 transitions, 186 flow [2021-03-26 05:16:03,537 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=63, PETRI_TRANSITIONS=64} [2021-03-26 05:16:03,538 INFO L343 CegarLoopForPetriNet]: 69 programPoint places, -6 predicate places. [2021-03-26 05:16:03,538 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:03,538 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 64 transitions, 186 flow [2021-03-26 05:16:03,539 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 64 transitions, 186 flow [2021-03-26 05:16:03,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 64 transitions, 186 flow [2021-03-26 05:16:03,568 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([203] thread4EXIT-->L119: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar0_4 4) (= v_thread4Thread1of1ForFork3_thidvar3_4 4) (= v_thread4Thread1of1ForFork3_thidvar1_4 4) (= v_thread4Thread1of1ForFork3_thidvar2_4 4)) InVars {thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} AuxVars[] AssignedVars[][50], [Black: 93#true, 72#L119true, Black: 90#(and (= y_1 y_9) (= x_0 x_8)), 95#(not f2_3)]) [2021-03-26 05:16:03,568 INFO L384 tUnfolder$Statistics]: this new event has 45 ancestors and is cut-off event [2021-03-26 05:16:03,568 INFO L387 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2021-03-26 05:16:03,568 INFO L387 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2021-03-26 05:16:03,568 INFO L387 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2021-03-26 05:16:03,578 INFO L129 PetriNetUnfolder]: 92/327 cut-off events. [2021-03-26 05:16:03,578 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-03-26 05:16:03,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 327 events. 92/327 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1628 event pairs, 14 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 434. Up to 78 conditions per place. [2021-03-26 05:16:03,584 INFO L142 LiptonReduction]: Number of co-enabled transitions 2102 [2021-03-26 05:16:03,625 INFO L154 LiptonReduction]: Checked pairs total: 294 [2021-03-26 05:16:03,625 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:03,626 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-03-26 05:16:03,627 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 64 transitions, 186 flow [2021-03-26 05:16:03,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,627 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:03,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:03,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 05:16:03,627 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thread1Err3INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Thread1of1ForFork3Err9INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread1Thread1of1ForFork2Err1INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:03,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:03,628 INFO L82 PathProgramCache]: Analyzing trace with hash 88735810, now seen corresponding path program 1 times [2021-03-26 05:16:03,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:03,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226083990] [2021-03-26 05:16:03,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:03,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:03,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:03,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:03,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 05:16:03,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:03,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:16:03,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226083990] [2021-03-26 05:16:03,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:03,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 05:16:03,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884754841] [2021-03-26 05:16:03,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 05:16:03,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:03,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 05:16:03,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 05:16:03,688 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 78 [2021-03-26 05:16:03,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 64 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:03,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 78 [2021-03-26 05:16:03,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:03,735 INFO L129 PetriNetUnfolder]: 150/497 cut-off events. [2021-03-26 05:16:03,735 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-03-26 05:16:03,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 497 events. 150/497 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2662 event pairs, 34 based on Foata normal form. 8/410 useless extension candidates. Maximal degree in co-relation 688. Up to 122 conditions per place. [2021-03-26 05:16:03,740 INFO L132 encePairwiseOnDemand]: 73/78 looper letters, 3 selfloop transitions, 4 changer transitions 0/66 dead transitions. [2021-03-26 05:16:03,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 66 transitions, 204 flow [2021-03-26 05:16:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 05:16:03,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 05:16:03,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2021-03-26 05:16:03,742 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9572649572649573 [2021-03-26 05:16:03,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2021-03-26 05:16:03,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2021-03-26 05:16:03,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:03,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2021-03-26 05:16:03,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,745 INFO L185 Difference]: Start difference. First operand has 63 places, 64 transitions, 186 flow. Second operand 3 states and 224 transitions. [2021-03-26 05:16:03,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 66 transitions, 204 flow [2021-03-26 05:16:03,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 66 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 05:16:03,749 INFO L241 Difference]: Finished difference. Result has 65 places, 66 transitions, 204 flow [2021-03-26 05:16:03,749 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=65, PETRI_TRANSITIONS=66} [2021-03-26 05:16:03,749 INFO L343 CegarLoopForPetriNet]: 69 programPoint places, -4 predicate places. [2021-03-26 05:16:03,750 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:03,750 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 66 transitions, 204 flow [2021-03-26 05:16:03,751 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 66 transitions, 204 flow [2021-03-26 05:16:03,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 66 transitions, 204 flow [2021-03-26 05:16:03,780 INFO L129 PetriNetUnfolder]: 146/477 cut-off events. [2021-03-26 05:16:03,780 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-03-26 05:16:03,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 477 events. 146/477 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2591 event pairs, 34 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 668. Up to 122 conditions per place. [2021-03-26 05:16:03,789 INFO L142 LiptonReduction]: Number of co-enabled transitions 2178 [2021-03-26 05:16:03,807 INFO L154 LiptonReduction]: Checked pairs total: 79 [2021-03-26 05:16:03,807 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:03,808 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-26 05:16:03,812 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 66 transitions, 204 flow [2021-03-26 05:16:03,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:03,812 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:03,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 05:16:03,813 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thread1Err3INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Thread1of1ForFork3Err9INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread1Thread1of1ForFork2Err1INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:03,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:03,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1156811842, now seen corresponding path program 1 times [2021-03-26 05:16:03,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:03,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104092819] [2021-03-26 05:16:03,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:03,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:03,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:03,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:03,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 05:16:03,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:03,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:03,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:16:03,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104092819] [2021-03-26 05:16:03,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:03,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 05:16:03,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303054041] [2021-03-26 05:16:03,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 05:16:03,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:03,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 05:16:03,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 05:16:03,854 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 78 [2021-03-26 05:16:03,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 66 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:03,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 78 [2021-03-26 05:16:03,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:03,900 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([203] thread4EXIT-->L119: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar0_4 4) (= v_thread4Thread1of1ForFork3_thidvar3_4 4) (= v_thread4Thread1of1ForFork3_thidvar1_4 4) (= v_thread4Thread1of1ForFork3_thidvar2_4 4)) InVars {thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} AuxVars[] AssignedVars[][46], [113#(not f2_11), Black: 93#true, 72#L119true, 105#(not f1_2), Black: 103#true, Black: 90#(and (= y_1 y_9) (= x_0 x_8))]) [2021-03-26 05:16:03,900 INFO L384 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2021-03-26 05:16:03,901 INFO L387 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2021-03-26 05:16:03,901 INFO L387 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2021-03-26 05:16:03,901 INFO L387 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2021-03-26 05:16:03,915 INFO L129 PetriNetUnfolder]: 204/659 cut-off events. [2021-03-26 05:16:03,915 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-03-26 05:16:03,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 659 events. 204/659 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3996 event pairs, 54 based on Foata normal form. 38/565 useless extension candidates. Maximal degree in co-relation 993. Up to 183 conditions per place. [2021-03-26 05:16:03,922 INFO L132 encePairwiseOnDemand]: 73/78 looper letters, 3 selfloop transitions, 4 changer transitions 0/68 dead transitions. [2021-03-26 05:16:03,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 68 transitions, 222 flow [2021-03-26 05:16:03,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 05:16:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 05:16:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2021-03-26 05:16:03,925 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9572649572649573 [2021-03-26 05:16:03,925 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2021-03-26 05:16:03,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2021-03-26 05:16:03,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:03,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2021-03-26 05:16:03,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:03,927 INFO L185 Difference]: Start difference. First operand has 65 places, 66 transitions, 204 flow. Second operand 3 states and 224 transitions. [2021-03-26 05:16:03,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 68 transitions, 222 flow [2021-03-26 05:16:03,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 05:16:03,931 INFO L241 Difference]: Finished difference. Result has 67 places, 68 transitions, 222 flow [2021-03-26 05:16:03,931 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=67, PETRI_TRANSITIONS=68} [2021-03-26 05:16:03,931 INFO L343 CegarLoopForPetriNet]: 69 programPoint places, -2 predicate places. [2021-03-26 05:16:03,931 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:03,931 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 68 transitions, 222 flow [2021-03-26 05:16:03,932 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 68 transitions, 222 flow [2021-03-26 05:16:03,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 68 transitions, 222 flow [2021-03-26 05:16:03,960 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([203] thread4EXIT-->L119: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar0_4 4) (= v_thread4Thread1of1ForFork3_thidvar3_4 4) (= v_thread4Thread1of1ForFork3_thidvar1_4 4) (= v_thread4Thread1of1ForFork3_thidvar2_4 4)) InVars {thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_4, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_4, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_4, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_4} AuxVars[] AssignedVars[][57], [Black: 93#true, 113#(not f2_11), Black: 111#true, 72#L119true, Black: 103#true, Black: 90#(and (= y_1 y_9) (= x_0 x_8))]) [2021-03-26 05:16:03,961 INFO L384 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2021-03-26 05:16:03,961 INFO L387 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2021-03-26 05:16:03,961 INFO L387 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2021-03-26 05:16:03,961 INFO L387 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2021-03-26 05:16:03,976 INFO L129 PetriNetUnfolder]: 208/663 cut-off events. [2021-03-26 05:16:03,976 INFO L130 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2021-03-26 05:16:03,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1060 conditions, 663 events. 208/663 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4061 event pairs, 56 based on Foata normal form. 0/528 useless extension candidates. Maximal degree in co-relation 1038. Up to 185 conditions per place. [2021-03-26 05:16:03,990 INFO L142 LiptonReduction]: Number of co-enabled transitions 2288 [2021-03-26 05:16:04,027 INFO L154 LiptonReduction]: Checked pairs total: 169 [2021-03-26 05:16:04,027 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:04,027 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-03-26 05:16:04,029 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 68 transitions, 222 flow [2021-03-26 05:16:04,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:04,030 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:04,030 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:04,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 05:16:04,030 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thread1Err3INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Thread1of1ForFork3Err9INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread1Thread1of1ForFork2Err1INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:04,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:04,030 INFO L82 PathProgramCache]: Analyzing trace with hash -809591954, now seen corresponding path program 1 times [2021-03-26 05:16:04,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:04,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693765154] [2021-03-26 05:16:04,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 05:16:04,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:04,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:04,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:04,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 05:16:04,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 05:16:04,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 05:16:04,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 05:16:04,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693765154] [2021-03-26 05:16:04,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 05:16:04,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 05:16:04,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147992499] [2021-03-26 05:16:04,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 05:16:04,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 05:16:04,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 05:16:04,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 05:16:04,066 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 78 [2021-03-26 05:16:04,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 68 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:04,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 05:16:04,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 78 [2021-03-26 05:16:04,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 05:16:04,143 INFO L129 PetriNetUnfolder]: 295/962 cut-off events. [2021-03-26 05:16:04,144 INFO L130 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2021-03-26 05:16:04,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1646 conditions, 962 events. 295/962 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6843 event pairs, 96 based on Foata normal form. 32/781 useless extension candidates. Maximal degree in co-relation 1624. Up to 242 conditions per place. [2021-03-26 05:16:04,154 INFO L132 encePairwiseOnDemand]: 73/78 looper letters, 3 selfloop transitions, 4 changer transitions 0/70 dead transitions. [2021-03-26 05:16:04,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 70 transitions, 240 flow [2021-03-26 05:16:04,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 05:16:04,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 05:16:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2021-03-26 05:16:04,155 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9572649572649573 [2021-03-26 05:16:04,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2021-03-26 05:16:04,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2021-03-26 05:16:04,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 05:16:04,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2021-03-26 05:16:04,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:04,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:04,158 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:04,158 INFO L185 Difference]: Start difference. First operand has 67 places, 68 transitions, 222 flow. Second operand 3 states and 224 transitions. [2021-03-26 05:16:04,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 70 transitions, 240 flow [2021-03-26 05:16:04,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 05:16:04,162 INFO L241 Difference]: Finished difference. Result has 69 places, 70 transitions, 240 flow [2021-03-26 05:16:04,162 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=69, PETRI_TRANSITIONS=70} [2021-03-26 05:16:04,162 INFO L343 CegarLoopForPetriNet]: 69 programPoint places, 0 predicate places. [2021-03-26 05:16:04,162 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 05:16:04,162 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 70 transitions, 240 flow [2021-03-26 05:16:04,163 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 70 transitions, 240 flow [2021-03-26 05:16:04,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions, 240 flow [2021-03-26 05:16:04,220 INFO L129 PetriNetUnfolder]: 249/868 cut-off events. [2021-03-26 05:16:04,220 INFO L130 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2021-03-26 05:16:04,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 868 events. 249/868 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6213 event pairs, 86 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 1478. Up to 198 conditions per place. [2021-03-26 05:16:04,238 INFO L142 LiptonReduction]: Number of co-enabled transitions 2380 [2021-03-26 05:16:04,276 INFO L154 LiptonReduction]: Checked pairs total: 130 [2021-03-26 05:16:04,276 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 05:16:04,276 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 114 [2021-03-26 05:16:04,280 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 70 transitions, 240 flow [2021-03-26 05:16:04,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 05:16:04,281 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 05:16:04,281 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 05:16:04,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 05:16:04,281 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thread1Err3INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork3Err8INUSE_VIOLATION, thread4Thread1of1ForFork3Err9INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, thread1Thread1of1ForFork2Err1INUSE_VIOLATION, thread4Err4INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork2Err2INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 05:16:04,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 05:16:04,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1582729059, now seen corresponding path program 1 times [2021-03-26 05:16:04,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 05:16:04,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005990404] [2021-03-26 05:16:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 05:16:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 05:16:04,304 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 05:16:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 05:16:04,327 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 05:16:04,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 05:16:04,353 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 05:16:04,353 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 05:16:04,449 INFO L202 PluginConnector]: Adding new model barrier-loop.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 05:16:04 BasicIcfg [2021-03-26 05:16:04,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 05:16:04,450 INFO L168 Benchmark]: Toolchain (without parser) took 2601.88 ms. Allocated memory is still 341.8 MB. Free memory was 321.8 MB in the beginning and 322.4 MB in the end (delta: -618.9 kB). Peak memory consumption was 185.7 MB. Max. memory is 16.0 GB. [2021-03-26 05:16:04,451 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 341.8 MB. Free memory was 323.1 MB in the beginning and 323.0 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 05:16:04,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.34 ms. Allocated memory is still 341.8 MB. Free memory was 321.7 MB in the beginning and 320.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 05:16:04,451 INFO L168 Benchmark]: Boogie Preprocessor took 15.90 ms. Allocated memory is still 341.8 MB. Free memory was 320.3 MB in the beginning and 319.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 05:16:04,453 INFO L168 Benchmark]: RCFGBuilder took 231.90 ms. Allocated memory is still 341.8 MB. Free memory was 319.1 MB in the beginning and 303.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 05:16:04,453 INFO L168 Benchmark]: TraceAbstraction took 2326.99 ms. Allocated memory is still 341.8 MB. Free memory was 303.4 MB in the beginning and 322.4 MB in the end (delta: -19.1 MB). Peak memory consumption was 166.9 MB. Max. memory is 16.0 GB. [2021-03-26 05:16:04,455 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 0.15 ms. Allocated memory is still 341.8 MB. Free memory was 323.1 MB in the beginning and 323.0 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.34 ms. Allocated memory is still 341.8 MB. Free memory was 321.7 MB in the beginning and 320.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.90 ms. Allocated memory is still 341.8 MB. Free memory was 320.3 MB in the beginning and 319.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 231.90 ms. Allocated memory is still 341.8 MB. Free memory was 319.1 MB in the beginning and 303.8 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2326.99 ms. Allocated memory is still 341.8 MB. Free memory was 303.4 MB in the beginning and 322.4 MB in the end (delta: -19.1 MB). Peak memory consumption was 166.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 105.9ms, 70 PlacesBefore, 69 PlacesAfterwards, 59 TransitionsBefore, 58 TransitionsAfterwards, 1888 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 600 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 308, positive: 292, positive conditional: 292, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 151, positive: 147, positive conditional: 0, positive unconditional: 147, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 151, positive: 147, positive conditional: 0, positive unconditional: 147, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 151, positive: 142, positive conditional: 0, positive unconditional: 142, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 18, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 308, positive: 145, positive conditional: 145, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 151, unknown conditional: 151, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 147, Positive conditional cache size: 147, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.2ms, 60 PlacesBefore, 60 PlacesAfterwards, 62 TransitionsBefore, 62 TransitionsAfterwards, 2008 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 37 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 165, Positive cache size: 160, Positive conditional cache size: 160, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 5, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 86.3ms, 63 PlacesBefore, 63 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 2102 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 294 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170, positive: 162, positive conditional: 162, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 107, positive: 102, positive conditional: 4, positive unconditional: 98, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 107, positive: 102, positive conditional: 4, positive unconditional: 98, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 107, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 170, positive: 60, positive conditional: 60, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 107, unknown conditional: 107, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 272, Positive cache size: 262, Positive conditional cache size: 262, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.6ms, 65 PlacesBefore, 65 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 2178 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 79 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 50, positive conditional: 50, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 2, positive unconditional: 21, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 2, positive unconditional: 21, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 295, Positive cache size: 285, Positive conditional cache size: 285, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 95.7ms, 67 PlacesBefore, 67 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 2288 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 169 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 107, positive: 103, positive conditional: 103, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 57, positive: 56, positive conditional: 5, positive unconditional: 51, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 57, positive: 56, positive conditional: 5, positive unconditional: 51, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 57, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 107, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 57, unknown conditional: 57, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 352, Positive cache size: 341, Positive conditional cache size: 341, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 113.6ms, 69 PlacesBefore, 69 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 2380 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 130 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 91, positive: 88, positive conditional: 88, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 2, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 2, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 91, positive: 71, positive conditional: 71, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 369, Positive cache size: 358, Positive conditional cache size: 358, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - CounterExampleResult [Line: 121]: assertion can be violated assertion can be violated We found a FailurePath: [L115] 0 assume x_0 == x_8 && y_1 == y_9; VAL [x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L116] FORK 0 fork 1 thread1(); VAL [x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L60] 1 f1_2 := false; [L61] 1 f2_3 := false; VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L63] FORK 1 fork 2, 2 thread2(); VAL [f1_2=false, f2_3=false, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L30] 2 temp_4 := x_0; VAL [f1_2=false, f2_3=false, temp_4=-1, x_0=-1, x_8=-1, y_1=-1, y_9=-1] [L31] 2 x_0 := temp_4 + 1; VAL [f1_2=false, f2_3=false, temp_4=-1, x_0=0, x_8=-1, y_1=-1, y_9=-1] [L64] FORK 1 fork 3, 3, 3 thread3(); VAL [f1_2=false, f2_3=false, temp_4=-1, x_0=0, x_8=-1, y_1=-1, y_9=-1] [L45] 3 temp_6 := y_1; VAL [f1_2=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=-1, y_9=-1] [L46] 3 y_1 := temp_6 + 1; VAL [f1_2=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L117] FORK 0 fork 4, 4, 4, 4 thread4(); VAL [f1_2=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L103] 4 f1_10 := false; [L104] 4 f2_11 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L106] FORK 4 fork 5, 5, 5, 5, 5 thread5(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L107] FORK 4 fork 6, 6, 6, 6, 6, 6 thread6(); VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L108] JOIN 5 join 5, 5, 5, 5, 5; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L109] JOIN 6 join 6, 6, 6, 6, 6, 6; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L47] 3 f2_3 := true; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L32] 2 f1_2 := true; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L33] 2 assume f2_3; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L34] 2 temp_5 := y_1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=0, y_9=-1] [L35] 2 y_1 := temp_5 + 1; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=1, y_9=-1] [L48] 3 assume f1_2; VAL [f1_10=false, f1_2=true, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=1, y_9=-1] [L36] 2 f1_2 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, x_0=0, x_8=-1, y_1=1, y_9=-1] [L49] 3 temp_7 := x_0; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=0, x_8=-1, y_1=1, y_9=-1] [L50] 3 x_0 := temp_7 + 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=true, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L51] 3 f2_3 := false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L52] 3 assume !f1_2; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L37] 2 assume !f2_3; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L65] JOIN 2 join 2, 2; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L66] JOIN 3 join 3, 3, 3; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L118] JOIN 1 join 1; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L119] JOIN 4 join 4, 4, 4, 4; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] [L120] 0 assume !(x_0 == x_8 && y_1 == y_9); [L121] 0 assert false; VAL [f1_10=false, f1_2=false, f2_11=false, f2_3=false, temp_4=-1, temp_5=0, temp_6=-1, temp_7=0, x_0=1, x_8=-1, y_1=1, y_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 2032.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 951.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 187.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 38 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 33 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=5, InterpolantAutomatonStates: 15, 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: 19.6ms SsaConstructionTime, 90.8ms SatisfiabilityAnalysisTime, 162.3ms InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 4/4 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 proved your program to be incorrect! Received shutdown request...