/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/example_unnecessary_interleavings.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 13:21:37,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 13:21:37,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 13:21:38,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 13:21:38,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 13:21:38,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 13:21:38,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 13:21:38,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 13:21:38,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 13:21:38,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 13:21:38,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 13:21:38,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 13:21:38,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 13:21:38,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 13:21:38,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 13:21:38,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 13:21:38,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 13:21:38,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 13:21:38,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 13:21:38,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 13:21:38,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 13:21:38,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 13:21:38,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 13:21:38,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 13:21:38,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 13:21:38,048 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 13:21:38,071 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 13:21:38,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 13:21:38,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 13:21:38,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 13:21:38,073 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 13:21:38,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 13:21:38,073 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 13:21:38,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 13:21:38,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 13:21:38,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 13:21:38,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 13:21:38,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 13:21:38,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 13:21:38,074 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 13:21:38,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 13:21:38,074 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 13:21:38,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 13:21:38,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 13:21:38,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 13:21:38,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 13:21:38,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 13:21:38,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 13:21:38,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 13:21:38,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 13:21:38,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 13:21:38,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 13:21:38,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 13:21:38,076 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 13:21:38,076 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 13:21:38,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 13:21:38,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 13:21:38,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 13:21:38,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 13:21:38,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 13:21:38,393 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 13:21:38,396 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 13:21:38,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example_unnecessary_interleavings.bpl [2021-03-26 13:21:38,398 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example_unnecessary_interleavings.bpl' [2021-03-26 13:21:38,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 13:21:38,429 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 13:21:38,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 13:21:38,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 13:21:38,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 13:21:38,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (1/1) ... [2021-03-26 13:21:38,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (1/1) ... [2021-03-26 13:21:38,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 13:21:38,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 13:21:38,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 13:21:38,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 13:21:38,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (1/1) ... [2021-03-26 13:21:38,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (1/1) ... [2021-03-26 13:21:38,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (1/1) ... [2021-03-26 13:21:38,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (1/1) ... [2021-03-26 13:21:38,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (1/1) ... [2021-03-26 13:21:38,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (1/1) ... [2021-03-26 13:21:38,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (1/1) ... [2021-03-26 13:21:38,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 13:21:38,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 13:21:38,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 13:21:38,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 13:21:38,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (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 13:21:38,528 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_y given in one single declaration [2021-03-26 13:21:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure set_y [2021-03-26 13:21:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure set_y [2021-03-26 13:21:38,529 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_z given in one single declaration [2021-03-26 13:21:38,529 INFO L130 BoogieDeclarations]: Found specification of procedure set_z [2021-03-26 13:21:38,529 INFO L138 BoogieDeclarations]: Found implementation of procedure set_z [2021-03-26 13:21:38,529 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 13:21:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 13:21:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 13:21:38,530 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_x given in one single declaration [2021-03-26 13:21:38,530 INFO L130 BoogieDeclarations]: Found specification of procedure set_x [2021-03-26 13:21:38,530 INFO L138 BoogieDeclarations]: Found implementation of procedure set_x [2021-03-26 13:21:38,531 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 13:21:38,629 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 13:21:38,629 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 13:21:38,630 INFO L202 PluginConnector]: Adding new model example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:21:38 BoogieIcfgContainer [2021-03-26 13:21:38,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 13:21:38,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 13:21:38,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 13:21:38,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 13:21:38,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:38" (1/2) ... [2021-03-26 13:21:38,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2ece26 and model type example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 01:21:38, skipping insertion in model container [2021-03-26 13:21:38,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:21:38" (2/2) ... [2021-03-26 13:21:38,636 INFO L111 eAbstractionObserver]: Analyzing ICFG example_unnecessary_interleavings.bpl [2021-03-26 13:21:38,641 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 13:21:38,644 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 13:21:38,645 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 13:21:38,682 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-03-26 13:21:38,698 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 13:21:38,732 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:21:38,733 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:21:38,733 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:21:38,733 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:21:38,733 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:21:38,733 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:21:38,733 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:21:38,733 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:21:38,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 92 flow [2021-03-26 13:21:38,764 INFO L129 PetriNetUnfolder]: 5/25 cut-off events. [2021-03-26 13:21:38,764 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 13:21:38,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 25 events. 5/25 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2021-03-26 13:21:38,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 25 transitions, 92 flow [2021-03-26 13:21:38,771 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 76 flow [2021-03-26 13:21:38,772 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:38,801 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 20 transitions, 76 flow [2021-03-26 13:21:38,803 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 20 transitions, 76 flow [2021-03-26 13:21:38,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 20 transitions, 76 flow [2021-03-26 13:21:38,836 INFO L129 PetriNetUnfolder]: 5/23 cut-off events. [2021-03-26 13:21:38,836 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 13:21:38,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 23 events. 5/23 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 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 13:21:38,842 INFO L142 LiptonReduction]: Number of co-enabled transitions 84 [2021-03-26 13:21:38,933 INFO L154 LiptonReduction]: Checked pairs total: 27 [2021-03-26 13:21:38,933 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 13:21:38,935 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 164 [2021-03-26 13:21:38,961 INFO L129 PetriNetUnfolder]: 5/19 cut-off events. [2021-03-26 13:21:38,961 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-26 13:21:38,961 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:21:38,962 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:21:38,962 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:21:38,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:21:38,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1687139461, now seen corresponding path program 1 times [2021-03-26 13:21:38,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:21:38,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823172857] [2021-03-26 13:21:38,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:21:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:21:39,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:39,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:21:39,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:39,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:21:39,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:39,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:21:39,113 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 13:21:39,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823172857] [2021-03-26 13:21:39,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:21:39,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 13:21:39,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696096086] [2021-03-26 13:21:39,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:21:39,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:21:39,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:21:39,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:21:39,139 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 28 [2021-03-26 13:21:39,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:39,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:21:39,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 28 [2021-03-26 13:21:39,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:21:39,170 INFO L129 PetriNetUnfolder]: 1/13 cut-off events. [2021-03-26 13:21:39,171 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-03-26 13:21:39,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 13 events. 1/13 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. 3/16 useless extension candidates. Maximal degree in co-relation 11. Up to 3 conditions per place. [2021-03-26 13:21:39,172 INFO L132 encePairwiseOnDemand]: 25/28 looper letters, 1 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2021-03-26 13:21:39,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 13 transitions, 54 flow [2021-03-26 13:21:39,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:21:39,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:21:39,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2021-03-26 13:21:39,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2021-03-26 13:21:39,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 76 transitions. [2021-03-26 13:21:39,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 76 transitions. [2021-03-26 13:21:39,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:21:39,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 76 transitions. [2021-03-26 13:21:39,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 13:21:39,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 13:21:39,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 13:21:39,197 INFO L185 Difference]: Start difference. First operand has 21 places, 17 transitions, 70 flow. Second operand 3 states and 76 transitions. [2021-03-26 13:21:39,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 13 transitions, 54 flow [2021-03-26 13:21:39,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 38 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 13:21:39,204 INFO L241 Difference]: Finished difference. Result has 17 places, 13 transitions, 36 flow [2021-03-26 13:21:39,206 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=17, PETRI_TRANSITIONS=13} [2021-03-26 13:21:39,206 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, -4 predicate places. [2021-03-26 13:21:39,207 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:39,207 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 13 transitions, 36 flow [2021-03-26 13:21:39,207 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 13 transitions, 36 flow [2021-03-26 13:21:39,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 13 transitions, 36 flow [2021-03-26 13:21:39,213 INFO L129 PetriNetUnfolder]: 1/13 cut-off events. [2021-03-26 13:21:39,214 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:39,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19 conditions, 13 events. 1/13 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. 0/13 useless extension candidates. Maximal degree in co-relation 9. Up to 2 conditions per place. [2021-03-26 13:21:39,214 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-26 13:21:39,216 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:21:39,216 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:21:39,216 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 13:21:39,218 INFO L480 AbstractCegarLoop]: Abstraction has has 17 places, 13 transitions, 36 flow [2021-03-26 13:21:39,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:39,219 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:21:39,219 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:21:39,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 13:21:39,219 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:21:39,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:21:39,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1436662561, now seen corresponding path program 1 times [2021-03-26 13:21:39,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:21:39,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261430265] [2021-03-26 13:21:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:21:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:21:39,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:39,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:21:39,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:39,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:21:39,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:39,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:21:39,255 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 13:21:39,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261430265] [2021-03-26 13:21:39,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:21:39,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 13:21:39,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218176987] [2021-03-26 13:21:39,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:21:39,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:21:39,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:21:39,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:21:39,260 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 28 [2021-03-26 13:21:39,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 13 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:39,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:21:39,263 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 28 [2021-03-26 13:21:39,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:21:39,274 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-26 13:21:39,275 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 13:21:39,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 11 events. 0/11 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 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 13:21:39,276 INFO L132 encePairwiseOnDemand]: 26/28 looper letters, 1 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2021-03-26 13:21:39,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 11 transitions, 34 flow [2021-03-26 13:21:39,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:21:39,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:21:39,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2021-03-26 13:21:39,282 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2021-03-26 13:21:39,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 75 transitions. [2021-03-26 13:21:39,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 75 transitions. [2021-03-26 13:21:39,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:21:39,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 75 transitions. [2021-03-26 13:21:39,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 13:21:39,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 13:21:39,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 13:21:39,287 INFO L185 Difference]: Start difference. First operand has 17 places, 13 transitions, 36 flow. Second operand 3 states and 75 transitions. [2021-03-26 13:21:39,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 11 transitions, 34 flow [2021-03-26 13:21:39,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 33 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 13:21:39,290 INFO L241 Difference]: Finished difference. Result has 18 places, 11 transitions, 31 flow [2021-03-26 13:21:39,290 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=31, PETRI_PLACES=18, PETRI_TRANSITIONS=11} [2021-03-26 13:21:39,290 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, -3 predicate places. [2021-03-26 13:21:39,291 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:39,291 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 11 transitions, 31 flow [2021-03-26 13:21:39,291 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 11 transitions, 31 flow [2021-03-26 13:21:39,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 18 places, 11 transitions, 31 flow [2021-03-26 13:21:39,297 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-26 13:21:39,297 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:39,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 5 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-26 13:21:39,298 INFO L142 LiptonReduction]: Number of co-enabled transitions 18 [2021-03-26 13:21:39,298 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:21:39,298 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:21:39,299 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 13:21:39,300 INFO L480 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 31 flow [2021-03-26 13:21:39,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:39,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:21:39,300 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:21:39,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 13:21:39,301 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:21:39,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:21:39,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1427696431, now seen corresponding path program 1 times [2021-03-26 13:21:39,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:21:39,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905959033] [2021-03-26 13:21:39,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:21:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:21:39,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:39,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 13:21:39,340 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 13:21:39,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905959033] [2021-03-26 13:21:39,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:21:39,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 13:21:39,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071242583] [2021-03-26 13:21:39,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:21:39,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:21:39,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:21:39,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:21:39,343 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 28 [2021-03-26 13:21:39,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 31 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:39,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:21:39,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 28 [2021-03-26 13:21:39,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:21:39,348 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-26 13:21:39,349 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:39,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19 conditions, 10 events. 0/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 0 based on Foata normal form. 1/11 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-26 13:21:39,349 INFO L132 encePairwiseOnDemand]: 26/28 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2021-03-26 13:21:39,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 10 transitions, 31 flow [2021-03-26 13:21:39,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:21:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:21:39,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2021-03-26 13:21:39,350 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2021-03-26 13:21:39,350 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 77 transitions. [2021-03-26 13:21:39,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 77 transitions. [2021-03-26 13:21:39,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:21:39,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 77 transitions. [2021-03-26 13:21:39,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:39,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 13:21:39,353 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 13:21:39,353 INFO L185 Difference]: Start difference. First operand has 18 places, 11 transitions, 31 flow. Second operand 3 states and 77 transitions. [2021-03-26 13:21:39,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 10 transitions, 31 flow [2021-03-26 13:21:39,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 10 transitions, 30 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 13:21:39,354 INFO L241 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2021-03-26 13:21:39,354 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2021-03-26 13:21:39,354 INFO L343 CegarLoopForPetriNet]: 21 programPoint places, -3 predicate places. [2021-03-26 13:21:39,355 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:39,356 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 0 transitions, 0 flow [2021-03-26 13:21:39,356 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 0 transitions, 0 flow [2021-03-26 13:21:39,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 13:21:39,357 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 13:21:39,357 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:39,357 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 13:21:39,357 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 13:21:39,357 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:21:39,357 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:21:39,357 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-03-26 13:21:39,361 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 13:21:39,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:21:39,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 13:21:39,366 INFO L202 PluginConnector]: Adding new model example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 01:21:39 BasicIcfg [2021-03-26 13:21:39,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 13:21:39,367 INFO L168 Benchmark]: Toolchain (without parser) took 938.04 ms. Allocated memory is still 352.3 MB. Free memory was 333.5 MB in the beginning and 305.5 MB in the end (delta: 28.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 16.0 GB. [2021-03-26 13:21:39,369 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.50 ms. Allocated memory is still 352.3 MB. Free memory was 334.5 MB in the beginning and 334.5 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:21:39,369 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.52 ms. Allocated memory is still 352.3 MB. Free memory was 333.4 MB in the beginning and 332.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-26 13:21:39,370 INFO L168 Benchmark]: Boogie Preprocessor took 14.16 ms. Allocated memory is still 352.3 MB. Free memory was 332.0 MB in the beginning and 331.1 MB in the end (delta: 825.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:21:39,372 INFO L168 Benchmark]: RCFGBuilder took 159.30 ms. Allocated memory is still 352.3 MB. Free memory was 331.1 MB in the beginning and 322.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-26 13:21:39,374 INFO L168 Benchmark]: TraceAbstraction took 734.51 ms. Allocated memory is still 352.3 MB. Free memory was 321.7 MB in the beginning and 305.5 MB in the end (delta: 16.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.0 GB. [2021-03-26 13:21:39,377 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 0.50 ms. Allocated memory is still 352.3 MB. Free memory was 334.5 MB in the beginning and 334.5 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.52 ms. Allocated memory is still 352.3 MB. Free memory was 333.4 MB in the beginning and 332.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.16 ms. Allocated memory is still 352.3 MB. Free memory was 332.0 MB in the beginning and 331.1 MB in the end (delta: 825.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 159.30 ms. Allocated memory is still 352.3 MB. Free memory was 331.1 MB in the beginning and 322.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 734.51 ms. Allocated memory is still 352.3 MB. Free memory was 321.7 MB in the beginning and 305.5 MB in the end (delta: 16.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 129.5ms, 24 PlacesBefore, 21 PlacesAfterwards, 20 TransitionsBefore, 17 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.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: 0, unknown unconditional: 27] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9ms, 17 PlacesBefore, 17 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 27, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3ms, 18 PlacesBefore, 18 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 18 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 27, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0ms, 18 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 27, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 633.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 117.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 214.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 9, 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: 7.3ms SsaConstructionTime, 23.6ms SatisfiabilityAnalysisTime, 98.3ms InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...