/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/mcr/example_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 03:48:05,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 03:48:05,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 03:48:05,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 03:48:05,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 03:48:05,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 03:48:05,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 03:48:05,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 03:48:05,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 03:48:05,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 03:48:05,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 03:48:05,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 03:48:05,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 03:48:05,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 03:48:05,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 03:48:05,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 03:48:05,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 03:48:05,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 03:48:05,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 03:48:05,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 03:48:05,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 03:48:05,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 03:48:05,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 03:48:05,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 03:48:05,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 03:48:05,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 03:48:05,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 03:48:05,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 03:48:05,989 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 03:48:06,007 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 03:48:06,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 03:48:06,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 03:48:06,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 03:48:06,009 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 03:48:06,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 03:48:06,010 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 03:48:06,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 03:48:06,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 03:48:06,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 03:48:06,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 03:48:06,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 03:48:06,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 03:48:06,011 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 03:48:06,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 03:48:06,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 03:48:06,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 03:48:06,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 03:48:06,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 03:48:06,012 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 03:48:06,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 03:48:06,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 03:48:06,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 03:48:06,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 03:48:06,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 03:48:06,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 03:48:06,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 03:48:06,013 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 03:48:06,013 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 03:48:06,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 03:48:06,013 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 03:48:06,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 03:48:06,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 03:48:06,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 03:48:06,286 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 03:48:06,286 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 03:48:06,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_3.bpl [2021-03-26 03:48:06,289 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_3.bpl' [2021-03-26 03:48:06,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 03:48:06,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 03:48:06,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 03:48:06,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 03:48:06,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 03:48:06,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (1/1) ... [2021-03-26 03:48:06,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (1/1) ... [2021-03-26 03:48:06,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 03:48:06,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 03:48:06,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 03:48:06,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 03:48:06,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (1/1) ... [2021-03-26 03:48:06,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (1/1) ... [2021-03-26 03:48:06,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (1/1) ... [2021-03-26 03:48:06,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (1/1) ... [2021-03-26 03:48:06,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (1/1) ... [2021-03-26 03:48:06,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (1/1) ... [2021-03-26 03:48:06,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (1/1) ... [2021-03-26 03:48:06,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 03:48:06,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 03:48:06,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 03:48:06,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 03:48:06,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (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 03:48:06,425 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-26 03:48:06,426 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-26 03:48:06,426 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-26 03:48:06,427 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-26 03:48:06,427 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-26 03:48:06,427 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-26 03:48:06,427 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-26 03:48:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-26 03:48:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-26 03:48:06,428 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 03:48:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 03:48:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 03:48:06,429 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 03:48:06,543 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 03:48:06,544 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 03:48:06,545 INFO L202 PluginConnector]: Adding new model example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:48:06 BoogieIcfgContainer [2021-03-26 03:48:06,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 03:48:06,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 03:48:06,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 03:48:06,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 03:48:06,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:48:06" (1/2) ... [2021-03-26 03:48:06,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60707ea9 and model type example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 03:48:06, skipping insertion in model container [2021-03-26 03:48:06,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:48:06" (2/2) ... [2021-03-26 03:48:06,574 INFO L111 eAbstractionObserver]: Analyzing ICFG example_3.bpl [2021-03-26 03:48:06,581 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 03:48:06,584 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 03:48:06,587 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 03:48:06,659 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-03-26 03:48:06,675 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 03:48:06,703 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 03:48:06,703 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 03:48:06,706 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 03:48:06,706 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 03:48:06,706 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 03:48:06,706 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 03:48:06,706 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 03:48:06,706 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 03:48:06,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 24 transitions, 90 flow [2021-03-26 03:48:06,747 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2021-03-26 03:48:06,748 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 03:48:06,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 24 events. 5/24 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2021-03-26 03:48:06,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 24 transitions, 90 flow [2021-03-26 03:48:06,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 74 flow [2021-03-26 03:48:06,756 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:48:06,769 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 19 transitions, 74 flow [2021-03-26 03:48:06,777 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 19 transitions, 74 flow [2021-03-26 03:48:06,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 19 transitions, 74 flow [2021-03-26 03:48:06,789 INFO L129 PetriNetUnfolder]: 5/22 cut-off events. [2021-03-26 03:48:06,790 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 03:48:06,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 22 events. 5/22 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2021-03-26 03:48:06,793 INFO L142 LiptonReduction]: Number of co-enabled transitions 84 [2021-03-26 03:48:06,878 INFO L154 LiptonReduction]: Checked pairs total: 27 [2021-03-26 03:48:06,878 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 03:48:06,880 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-03-26 03:48:06,889 INFO L129 PetriNetUnfolder]: 5/18 cut-off events. [2021-03-26 03:48:06,889 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 03:48:06,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:48:06,890 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:48:06,890 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:48:06,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:48:06,894 INFO L82 PathProgramCache]: Analyzing trace with hash 33487082, now seen corresponding path program 1 times [2021-03-26 03:48:06,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:48:06,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575237730] [2021-03-26 03:48:06,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:48:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:48:07,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:48:07,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:48:07,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:48:07,050 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 03:48:07,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575237730] [2021-03-26 03:48:07,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:48:07,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 03:48:07,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074512033] [2021-03-26 03:48:07,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 03:48:07,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:48:07,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 03:48:07,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 03:48:07,070 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 27 [2021-03-26 03:48:07,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 03:48:07,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:48:07,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 27 [2021-03-26 03:48:07,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:48:07,084 INFO L129 PetriNetUnfolder]: 1/12 cut-off events. [2021-03-26 03:48:07,084 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-03-26 03:48:07,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 12 events. 1/12 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 3/15 useless extension candidates. Maximal degree in co-relation 11. Up to 3 conditions per place. [2021-03-26 03:48:07,085 INFO L132 encePairwiseOnDemand]: 24/27 looper letters, 1 selfloop transitions, 1 changer transitions 0/12 dead transitions. [2021-03-26 03:48:07,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 12 transitions, 52 flow [2021-03-26 03:48:07,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 03:48:07,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 03:48:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2021-03-26 03:48:07,095 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9012345679012346 [2021-03-26 03:48:07,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 73 transitions. [2021-03-26 03:48:07,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 73 transitions. [2021-03-26 03:48:07,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:48:07,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 73 transitions. [2021-03-26 03:48:07,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 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 03:48:07,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 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 03:48:07,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 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 03:48:07,104 INFO L185 Difference]: Start difference. First operand has 20 places, 16 transitions, 68 flow. Second operand 3 states and 73 transitions. [2021-03-26 03:48:07,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 12 transitions, 52 flow [2021-03-26 03:48:07,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 12 transitions, 36 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 03:48:07,109 INFO L241 Difference]: Finished difference. Result has 16 places, 12 transitions, 34 flow [2021-03-26 03:48:07,110 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=16, PETRI_TRANSITIONS=12} [2021-03-26 03:48:07,111 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, -4 predicate places. [2021-03-26 03:48:07,111 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:48:07,111 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 12 transitions, 34 flow [2021-03-26 03:48:07,112 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 16 places, 12 transitions, 34 flow [2021-03-26 03:48:07,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 16 places, 12 transitions, 34 flow [2021-03-26 03:48:07,115 INFO L129 PetriNetUnfolder]: 1/12 cut-off events. [2021-03-26 03:48:07,116 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:48:07,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 12 events. 1/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 9. Up to 2 conditions per place. [2021-03-26 03:48:07,116 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-26 03:48:07,117 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:48:07,117 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:48:07,117 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 03:48:07,118 INFO L480 AbstractCegarLoop]: Abstraction has has 16 places, 12 transitions, 34 flow [2021-03-26 03:48:07,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 03:48:07,119 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:48:07,119 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:48:07,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 03:48:07,119 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:48:07,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:48:07,120 INFO L82 PathProgramCache]: Analyzing trace with hash 33659132, now seen corresponding path program 1 times [2021-03-26 03:48:07,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:48:07,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735163297] [2021-03-26 03:48:07,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:48:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:48:07,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:48:07,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 03:48:07,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 03:48:07,183 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-26 03:48:07,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 03:48:07,204 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 03:48:07,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735163297] [2021-03-26 03:48:07,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:48:07,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 03:48:07,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545245105] [2021-03-26 03:48:07,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 03:48:07,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:48:07,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 03:48:07,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 03:48:07,208 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 27 [2021-03-26 03:48:07,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 34 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:07,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:48:07,209 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 27 [2021-03-26 03:48:07,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:48:07,252 INFO L129 PetriNetUnfolder]: 6/33 cut-off events. [2021-03-26 03:48:07,252 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:48:07,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 33 events. 6/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 87 event pairs, 1 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 45. Up to 7 conditions per place. [2021-03-26 03:48:07,253 INFO L132 encePairwiseOnDemand]: 23/27 looper letters, 5 selfloop transitions, 2 changer transitions 1/16 dead transitions. [2021-03-26 03:48:07,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 16 transitions, 58 flow [2021-03-26 03:48:07,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 03:48:07,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 03:48:07,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2021-03-26 03:48:07,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7703703703703704 [2021-03-26 03:48:07,255 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 104 transitions. [2021-03-26 03:48:07,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 104 transitions. [2021-03-26 03:48:07,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:48:07,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 104 transitions. [2021-03-26 03:48:07,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 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 03:48:07,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:07,258 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:07,258 INFO L185 Difference]: Start difference. First operand has 16 places, 12 transitions, 34 flow. Second operand 5 states and 104 transitions. [2021-03-26 03:48:07,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 16 transitions, 58 flow [2021-03-26 03:48:07,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 16 transitions, 57 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 03:48:07,259 INFO L241 Difference]: Finished difference. Result has 22 places, 13 transitions, 48 flow [2021-03-26 03:48:07,259 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=48, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2021-03-26 03:48:07,260 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2021-03-26 03:48:07,260 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:48:07,260 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 13 transitions, 48 flow [2021-03-26 03:48:07,260 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 13 transitions, 48 flow [2021-03-26 03:48:07,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 13 transitions, 48 flow [2021-03-26 03:48:07,265 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-26 03:48:07,265 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 03:48:07,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 21 events. 2/21 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 31. Up to 4 conditions per place. [2021-03-26 03:48:07,266 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-26 03:48:07,267 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:48:07,267 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:48:07,267 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 03:48:07,268 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 48 flow [2021-03-26 03:48:07,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:07,269 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:48:07,269 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:48:07,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 03:48:07,269 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:48:07,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:48:07,269 INFO L82 PathProgramCache]: Analyzing trace with hash 53113680, now seen corresponding path program 2 times [2021-03-26 03:48:07,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:48:07,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701303021] [2021-03-26 03:48:07,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:48:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:48:07,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:48:07,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 03:48:07,306 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-26 03:48:07,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 03:48:07,320 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-26 03:48:07,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 03:48:07,346 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 03:48:07,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701303021] [2021-03-26 03:48:07,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:48:07,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 03:48:07,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244223315] [2021-03-26 03:48:07,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 03:48:07,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:48:07,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 03:48:07,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 03:48:07,349 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 27 [2021-03-26 03:48:07,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 48 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:07,350 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:48:07,350 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 27 [2021-03-26 03:48:07,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:48:07,403 INFO L129 PetriNetUnfolder]: 5/33 cut-off events. [2021-03-26 03:48:07,404 INFO L130 PetriNetUnfolder]: For 24/27 co-relation queries the response was YES. [2021-03-26 03:48:07,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 33 events. 5/33 cut-off events. For 24/27 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 99 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 63. Up to 7 conditions per place. [2021-03-26 03:48:07,404 INFO L132 encePairwiseOnDemand]: 23/27 looper letters, 5 selfloop transitions, 2 changer transitions 3/18 dead transitions. [2021-03-26 03:48:07,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 92 flow [2021-03-26 03:48:07,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 03:48:07,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 03:48:07,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2021-03-26 03:48:07,406 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7703703703703704 [2021-03-26 03:48:07,406 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 104 transitions. [2021-03-26 03:48:07,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 104 transitions. [2021-03-26 03:48:07,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:48:07,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 104 transitions. [2021-03-26 03:48:07,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 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 03:48:07,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:07,409 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:07,409 INFO L185 Difference]: Start difference. First operand has 21 places, 13 transitions, 48 flow. Second operand 5 states and 104 transitions. [2021-03-26 03:48:07,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 92 flow [2021-03-26 03:48:07,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 85 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 03:48:07,411 INFO L241 Difference]: Finished difference. Result has 26 places, 13 transitions, 58 flow [2021-03-26 03:48:07,411 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=58, PETRI_PLACES=26, PETRI_TRANSITIONS=13} [2021-03-26 03:48:07,411 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 6 predicate places. [2021-03-26 03:48:07,411 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:48:07,412 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 13 transitions, 58 flow [2021-03-26 03:48:07,412 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 13 transitions, 58 flow [2021-03-26 03:48:07,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 13 transitions, 58 flow [2021-03-26 03:48:07,416 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-26 03:48:07,416 INFO L130 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2021-03-26 03:48:07,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 21 events. 2/21 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 37. Up to 4 conditions per place. [2021-03-26 03:48:07,417 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-26 03:48:07,418 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:48:07,418 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:48:07,418 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 03:48:07,419 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 13 transitions, 58 flow [2021-03-26 03:48:07,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:07,419 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:48:07,419 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:48:07,420 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 03:48:07,420 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:48:07,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:48:07,420 INFO L82 PathProgramCache]: Analyzing trace with hash -802192974, now seen corresponding path program 3 times [2021-03-26 03:48:07,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:48:07,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894542424] [2021-03-26 03:48:07,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:48:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:48:07,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:48:07,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 03:48:07,452 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-26 03:48:07,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 03:48:07,465 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-26 03:48:07,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 03:48:07,477 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 03:48:07,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894542424] [2021-03-26 03:48:07,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:48:07,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 03:48:07,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461349723] [2021-03-26 03:48:07,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 03:48:07,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:48:07,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 03:48:07,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 03:48:07,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 27 [2021-03-26 03:48:07,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 13 transitions, 58 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:07,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:48:07,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 27 [2021-03-26 03:48:07,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:48:07,524 INFO L129 PetriNetUnfolder]: 4/30 cut-off events. [2021-03-26 03:48:07,525 INFO L130 PetriNetUnfolder]: For 42/45 co-relation queries the response was YES. [2021-03-26 03:48:07,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 30 events. 4/30 cut-off events. For 42/45 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 82 event pairs, 1 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 64. Up to 6 conditions per place. [2021-03-26 03:48:07,525 INFO L132 encePairwiseOnDemand]: 23/27 looper letters, 5 selfloop transitions, 3 changer transitions 1/17 dead transitions. [2021-03-26 03:48:07,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 17 transitions, 99 flow [2021-03-26 03:48:07,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 03:48:07,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 03:48:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2021-03-26 03:48:07,527 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7703703703703704 [2021-03-26 03:48:07,527 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 104 transitions. [2021-03-26 03:48:07,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 104 transitions. [2021-03-26 03:48:07,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:48:07,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 104 transitions. [2021-03-26 03:48:07,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 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 03:48:07,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:07,530 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:07,530 INFO L185 Difference]: Start difference. First operand has 25 places, 13 transitions, 58 flow. Second operand 5 states and 104 transitions. [2021-03-26 03:48:07,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 17 transitions, 99 flow [2021-03-26 03:48:07,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 81 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-26 03:48:07,532 INFO L241 Difference]: Finished difference. Result has 28 places, 14 transitions, 69 flow [2021-03-26 03:48:07,533 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=69, PETRI_PLACES=28, PETRI_TRANSITIONS=14} [2021-03-26 03:48:07,533 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 8 predicate places. [2021-03-26 03:48:07,533 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:48:07,533 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 14 transitions, 69 flow [2021-03-26 03:48:07,533 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 14 transitions, 69 flow [2021-03-26 03:48:07,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 14 transitions, 69 flow [2021-03-26 03:48:07,538 INFO L129 PetriNetUnfolder]: 3/25 cut-off events. [2021-03-26 03:48:07,538 INFO L130 PetriNetUnfolder]: For 23/24 co-relation queries the response was YES. [2021-03-26 03:48:07,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 25 events. 3/25 cut-off events. For 23/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 47. Up to 6 conditions per place. [2021-03-26 03:48:07,539 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-26 03:48:07,540 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:48:07,540 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:48:07,541 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 03:48:07,542 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 14 transitions, 69 flow [2021-03-26 03:48:07,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:07,542 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:48:07,542 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:48:07,543 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 03:48:07,543 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:48:07,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:48:07,559 INFO L82 PathProgramCache]: Analyzing trace with hash 902364692, now seen corresponding path program 4 times [2021-03-26 03:48:07,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:48:07,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038523839] [2021-03-26 03:48:07,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:48:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:48:07,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:48:07,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 03:48:07,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 03:48:07,615 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-26 03:48:07,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 03:48:07,638 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 03:48:07,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038523839] [2021-03-26 03:48:07,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:48:07,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 03:48:07,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019104311] [2021-03-26 03:48:07,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 03:48:07,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:48:07,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 03:48:07,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 03:48:07,641 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 27 [2021-03-26 03:48:07,642 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 14 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:07,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:48:07,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 27 [2021-03-26 03:48:07,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:48:07,719 INFO L129 PetriNetUnfolder]: 4/27 cut-off events. [2021-03-26 03:48:07,719 INFO L130 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2021-03-26 03:48:07,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 27 events. 4/27 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 66 event pairs, 1 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 63. Up to 6 conditions per place. [2021-03-26 03:48:07,720 INFO L132 encePairwiseOnDemand]: 23/27 looper letters, 3 selfloop transitions, 1 changer transitions 4/16 dead transitions. [2021-03-26 03:48:07,720 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 16 transitions, 99 flow [2021-03-26 03:48:07,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 03:48:07,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 03:48:07,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 103 transitions. [2021-03-26 03:48:07,724 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.762962962962963 [2021-03-26 03:48:07,724 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 103 transitions. [2021-03-26 03:48:07,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 103 transitions. [2021-03-26 03:48:07,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:48:07,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 103 transitions. [2021-03-26 03:48:07,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 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 03:48:07,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:07,727 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:07,727 INFO L185 Difference]: Start difference. First operand has 27 places, 14 transitions, 69 flow. Second operand 5 states and 103 transitions. [2021-03-26 03:48:07,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 16 transitions, 99 flow [2021-03-26 03:48:07,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 16 transitions, 95 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 03:48:07,729 INFO L241 Difference]: Finished difference. Result has 31 places, 12 transitions, 56 flow [2021-03-26 03:48:07,729 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=56, PETRI_PLACES=31, PETRI_TRANSITIONS=12} [2021-03-26 03:48:07,729 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 11 predicate places. [2021-03-26 03:48:07,729 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:48:07,730 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 12 transitions, 56 flow [2021-03-26 03:48:07,730 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 12 transitions, 56 flow [2021-03-26 03:48:07,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 12 transitions, 56 flow [2021-03-26 03:48:07,733 INFO L129 PetriNetUnfolder]: 1/12 cut-off events. [2021-03-26 03:48:07,733 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2021-03-26 03:48:07,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 12 events. 1/12 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2021-03-26 03:48:07,734 INFO L142 LiptonReduction]: Number of co-enabled transitions 8 [2021-03-26 03:48:07,735 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:48:07,735 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:48:07,735 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 03:48:07,736 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 12 transitions, 56 flow [2021-03-26 03:48:07,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:07,736 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:48:07,736 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:48:07,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 03:48:07,737 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:48:07,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:48:07,737 INFO L82 PathProgramCache]: Analyzing trace with hash 71195792, now seen corresponding path program 5 times [2021-03-26 03:48:07,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:48:07,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777009425] [2021-03-26 03:48:07,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:48:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:48:07,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:48:07,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 03:48:07,807 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-26 03:48:07,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 03:48:07,830 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-26 03:48:07,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 03:48:07,846 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 03:48:07,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777009425] [2021-03-26 03:48:07,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:48:07,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 03:48:07,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211934920] [2021-03-26 03:48:07,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 03:48:07,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:48:07,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 03:48:07,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 03:48:07,849 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 27 [2021-03-26 03:48:07,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 12 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:07,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:48:07,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 27 [2021-03-26 03:48:07,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:48:07,888 INFO L129 PetriNetUnfolder]: 2/20 cut-off events. [2021-03-26 03:48:07,889 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-26 03:48:07,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 20 events. 2/20 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 51. Up to 4 conditions per place. [2021-03-26 03:48:07,889 INFO L132 encePairwiseOnDemand]: 23/27 looper letters, 3 selfloop transitions, 1 changer transitions 2/14 dead transitions. [2021-03-26 03:48:07,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 14 transitions, 87 flow [2021-03-26 03:48:07,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 03:48:07,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 03:48:07,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2021-03-26 03:48:07,891 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7555555555555555 [2021-03-26 03:48:07,891 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 102 transitions. [2021-03-26 03:48:07,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 102 transitions. [2021-03-26 03:48:07,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:48:07,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 102 transitions. [2021-03-26 03:48:07,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 03:48:07,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:07,893 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:07,893 INFO L185 Difference]: Start difference. First operand has 28 places, 12 transitions, 56 flow. Second operand 5 states and 102 transitions. [2021-03-26 03:48:07,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 14 transitions, 87 flow [2021-03-26 03:48:07,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 14 transitions, 59 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-26 03:48:07,895 INFO L241 Difference]: Finished difference. Result has 26 places, 12 transitions, 46 flow [2021-03-26 03:48:07,895 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=46, PETRI_PLACES=26, PETRI_TRANSITIONS=12} [2021-03-26 03:48:07,895 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 6 predicate places. [2021-03-26 03:48:07,895 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:48:07,896 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 12 transitions, 46 flow [2021-03-26 03:48:07,896 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 12 transitions, 46 flow [2021-03-26 03:48:07,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 12 transitions, 46 flow [2021-03-26 03:48:07,899 INFO L129 PetriNetUnfolder]: 1/13 cut-off events. [2021-03-26 03:48:07,899 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 03:48:07,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 13 events. 1/13 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-03-26 03:48:07,899 INFO L142 LiptonReduction]: Number of co-enabled transitions 6 [2021-03-26 03:48:07,900 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:48:07,900 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:48:07,900 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-26 03:48:07,901 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 12 transitions, 46 flow [2021-03-26 03:48:07,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:07,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:48:07,902 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:48:07,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 03:48:07,902 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:48:07,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:48:07,902 INFO L82 PathProgramCache]: Analyzing trace with hash -832248358, now seen corresponding path program 1 times [2021-03-26 03:48:07,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:48:07,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577111307] [2021-03-26 03:48:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:48:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:48:07,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:48:07,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:48:07,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:48:07,917 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 03:48:07,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577111307] [2021-03-26 03:48:07,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:48:07,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 03:48:07,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249863831] [2021-03-26 03:48:07,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 03:48:07,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:48:07,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 03:48:07,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 03:48:07,919 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 27 [2021-03-26 03:48:07,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 12 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 03:48:07,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:48:07,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 27 [2021-03-26 03:48:07,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:48:07,923 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-26 03:48:07,924 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-26 03:48:07,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 11 events. 0/11 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 03:48:07,924 INFO L132 encePairwiseOnDemand]: 25/27 looper letters, 1 selfloop transitions, 1 changer transitions 0/10 dead transitions. [2021-03-26 03:48:07,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 10 transitions, 44 flow [2021-03-26 03:48:07,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 03:48:07,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 03:48:07,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2021-03-26 03:48:07,925 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-03-26 03:48:07,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 72 transitions. [2021-03-26 03:48:07,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 72 transitions. [2021-03-26 03:48:07,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:48:07,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 72 transitions. [2021-03-26 03:48:07,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 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 03:48:07,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 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 03:48:07,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 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 03:48:07,927 INFO L185 Difference]: Start difference. First operand has 24 places, 12 transitions, 46 flow. Second operand 3 states and 72 transitions. [2021-03-26 03:48:07,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 10 transitions, 44 flow [2021-03-26 03:48:07,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 10 transitions, 35 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-26 03:48:07,928 INFO L241 Difference]: Finished difference. Result has 21 places, 10 transitions, 33 flow [2021-03-26 03:48:07,928 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=21, PETRI_TRANSITIONS=10} [2021-03-26 03:48:07,928 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2021-03-26 03:48:07,929 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:48:07,929 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 10 transitions, 33 flow [2021-03-26 03:48:07,929 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 10 transitions, 33 flow [2021-03-26 03:48:07,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 10 transitions, 33 flow [2021-03-26 03:48:07,941 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-26 03:48:07,941 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:48:07,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 03:48:07,941 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-26 03:48:07,942 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:48:07,942 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:48:07,942 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 03:48:07,943 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 10 transitions, 33 flow [2021-03-26 03:48:07,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 03:48:07,943 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:48:07,943 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:48:07,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 03:48:07,943 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:48:07,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:48:07,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1788944852, now seen corresponding path program 6 times [2021-03-26 03:48:07,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:48:07,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540198790] [2021-03-26 03:48:07,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:48:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:48:07,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:48:07,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:48:07,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 03:48:07,980 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-26 03:48:07,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 03:48:07,993 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-26 03:48:07,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 03:48:08,008 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 03:48:08,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540198790] [2021-03-26 03:48:08,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:48:08,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 03:48:08,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316220911] [2021-03-26 03:48:08,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 03:48:08,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:48:08,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 03:48:08,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 03:48:08,010 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 27 [2021-03-26 03:48:08,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 10 transitions, 33 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:08,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:48:08,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 27 [2021-03-26 03:48:08,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:48:08,030 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-26 03:48:08,030 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 03:48:08,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 10 events. 0/10 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 03:48:08,031 INFO L132 encePairwiseOnDemand]: 23/27 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2021-03-26 03:48:08,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 10 transitions, 43 flow [2021-03-26 03:48:08,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 03:48:08,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 03:48:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 100 transitions. [2021-03-26 03:48:08,031 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2021-03-26 03:48:08,032 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 100 transitions. [2021-03-26 03:48:08,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 100 transitions. [2021-03-26 03:48:08,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:48:08,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 100 transitions. [2021-03-26 03:48:08,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 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 03:48:08,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:08,033 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 0 states have call successors, (0), 0 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 03:48:08,033 INFO L185 Difference]: Start difference. First operand has 21 places, 10 transitions, 33 flow. Second operand 5 states and 100 transitions. [2021-03-26 03:48:08,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 10 transitions, 43 flow [2021-03-26 03:48:08,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 10 transitions, 42 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 03:48:08,034 INFO L241 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2021-03-26 03:48:08,034 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2021-03-26 03:48:08,034 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 3 predicate places. [2021-03-26 03:48:08,034 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:48:08,034 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 0 transitions, 0 flow [2021-03-26 03:48:08,035 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 0 transitions, 0 flow [2021-03-26 03:48:08,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 03:48:08,035 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 03:48:08,035 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:48:08,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 03:48:08,035 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 03:48:08,035 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:48:08,035 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:48:08,035 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 03:48:08,036 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 03:48:08,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 03:48:08,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 03:48:08,040 INFO L202 PluginConnector]: Adding new model example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 03:48:08 BasicIcfg [2021-03-26 03:48:08,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 03:48:08,041 INFO L168 Benchmark]: Toolchain (without parser) took 1719.03 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 236.5 MB in the beginning and 308.5 MB in the end (delta: -72.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.0 GB. [2021-03-26 03:48:08,041 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.43 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 03:48:08,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.65 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 235.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 03:48:08,042 INFO L168 Benchmark]: Boogie Preprocessor took 13.43 ms. Allocated memory is still 255.9 MB. Free memory was 235.0 MB in the beginning and 234.2 MB in the end (delta: 810.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 03:48:08,042 INFO L168 Benchmark]: RCFGBuilder took 183.19 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 225.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-26 03:48:08,042 INFO L168 Benchmark]: TraceAbstraction took 1475.08 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 241.7 MB in the beginning and 308.5 MB in the end (delta: -66.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.0 GB. [2021-03-26 03:48:08,044 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 0.43 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.65 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 235.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.43 ms. Allocated memory is still 255.9 MB. Free memory was 235.0 MB in the beginning and 234.2 MB in the end (delta: 810.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 183.19 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 225.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1475.08 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 241.7 MB in the beginning and 308.5 MB in the end (delta: -66.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 101.0ms, 23 PlacesBefore, 20 PlacesAfterwards, 19 TransitionsBefore, 16 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 0, positive unconditional: 27, 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: 27, positive: 27, positive conditional: 0, positive unconditional: 27, 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: 27, positive: 27, positive conditional: 0, positive unconditional: 27, 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: 27, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 27, unknown conditional: 27, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.4ms, 16 PlacesBefore, 16 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6ms, 22 PlacesBefore, 21 PlacesAfterwards, 13 TransitionsBefore, 13 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0ms, 26 PlacesBefore, 25 PlacesAfterwards, 13 TransitionsBefore, 13 TransitionsAfterwards, 20 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0ms, 28 PlacesBefore, 27 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 18 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8ms, 31 PlacesBefore, 28 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3ms, 26 PlacesBefore, 24 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.8ms, 21 PlacesBefore, 21 PlacesAfterwards, 10 TransitionsBefore, 10 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 23 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1337.7ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 386.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 178.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 34 SDtfs, 29 SDslu, 15 SDs, 0 SdLazy, 53 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 324.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=4, InterpolantAutomatonStates: 36, 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: 9.7ms SsaConstructionTime, 31.6ms SatisfiabilityAnalysisTime, 482.8ms InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 614 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...