/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 12:59:44,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 12:59:44,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 12:59:44,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-30 12:59:44,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-06-30 12:59:44,208 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 12:59:44,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 12:59:44,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 12:59:44,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 12:59:44,210 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 12:59:44,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 12:59:44,211 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 12:59:44,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 12:59:44,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 12:59:44,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 12:59:44,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 12:59:44,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 12:59:44,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 12:59:44,212 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 12:59:44,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 12:59:44,212 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 12:59:44,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 12:59:44,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 12:59:44,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 12:59:44,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 12:59:44,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 12:59:44,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 12:59:44,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 12:59:44,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 12:59:44,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 12:59:44,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 12:59:44,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 12:59:44,214 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 12:59:44,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-30 12:59:44,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 12:59:44,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 12:59:44,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 12:59:44,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 12:59:44,469 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 12:59:44,470 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 12:59:44,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr03.bpl [2021-06-30 12:59:44,471 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/incr-decr03.bpl' [2021-06-30 12:59:44,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 12:59:44,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 12:59:44,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 12:59:44,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 12:59:44,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 12:59:44,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (1/1) ... [2021-06-30 12:59:44,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (1/1) ... [2021-06-30 12:59:44,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 12:59:44,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 12:59:44,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 12:59:44,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 12:59:44,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (1/1) ... [2021-06-30 12:59:44,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (1/1) ... [2021-06-30 12:59:44,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (1/1) ... [2021-06-30 12:59:44,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (1/1) ... [2021-06-30 12:59:44,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (1/1) ... [2021-06-30 12:59:44,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (1/1) ... [2021-06-30 12:59:44,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (1/1) ... [2021-06-30 12:59:44,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 12:59:44,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 12:59:44,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 12:59:44,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 12:59:44,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (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 [2021-06-30 12:59:44,575 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 12:59:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 12:59:44,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 12:59:44,575 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 12:59:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 12:59:44,575 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 12:59:44,576 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-30 12:59:44,660 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 12:59:44,661 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 12:59:44,662 INFO L202 PluginConnector]: Adding new model incr-decr03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 12:59:44 BoogieIcfgContainer [2021-06-30 12:59:44,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 12:59:44,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 12:59:44,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 12:59:44,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 12:59:44,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 12:59:44" (1/2) ... [2021-06-30 12:59:44,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1104d3 and model type incr-decr03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 12:59:44, skipping insertion in model container [2021-06-30 12:59:44,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "incr-decr03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 12:59:44" (2/2) ... [2021-06-30 12:59:44,667 INFO L111 eAbstractionObserver]: Analyzing ICFG incr-decr03.bpl [2021-06-30 12:59:44,671 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 12:59:44,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 12:59:44,671 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 12:59:44,704 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-30 12:59:44,720 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-30 12:59:44,756 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 12:59:44,756 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 12:59:44,757 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 12:59:44,757 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 12:59:44,757 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 12:59:44,757 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 12:59:44,757 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 12:59:44,757 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 12:59:44,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 22 transitions, 68 flow [2021-06-30 12:59:44,776 INFO L129 PetriNetUnfolder]: 3/19 cut-off events. [2021-06-30 12:59:44,777 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-30 12:59:44,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 19 events. 3/19 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 19 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2021-06-30 12:59:44,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 22 transitions, 68 flow [2021-06-30 12:59:44,782 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 17 transitions, 52 flow [2021-06-30 12:59:44,788 INFO L129 PetriNetUnfolder]: 3/16 cut-off events. [2021-06-30 12:59:44,788 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-30 12:59:44,788 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:59:44,789 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:59:44,789 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:59:44,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:59:44,793 INFO L82 PathProgramCache]: Analyzing trace with hash -411292713, now seen corresponding path program 1 times [2021-06-30 12:59:44,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:59:44,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047894005] [2021-06-30 12:59:44,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:59:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:59:44,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:44,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-30 12:59:44,941 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:59:44,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047894005] [2021-06-30 12:59:44,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047894005] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:59:44,942 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:59:44,942 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-30 12:59:44,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418280305] [2021-06-30 12:59:44,949 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-30 12:59:44,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:59:44,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-30 12:59:44,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-30 12:59:44,965 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 22 [2021-06-30 12:59:44,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-06-30 12:59:44,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:59:44,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 22 [2021-06-30 12:59:44,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:59:45,030 INFO L129 PetriNetUnfolder]: 33/68 cut-off events. [2021-06-30 12:59:45,031 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-06-30 12:59:45,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 68 events. 33/68 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 172 event pairs, 2 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 110. Up to 47 conditions per place. [2021-06-30 12:59:45,033 INFO L132 encePairwiseOnDemand]: 17/22 looper letters, 7 selfloop transitions, 4 changer transitions 0/20 dead transitions. [2021-06-30 12:59:45,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 80 flow [2021-06-30 12:59:45,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-30 12:59:45,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-30 12:59:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2021-06-30 12:59:45,041 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-30 12:59:45,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 51 transitions. [2021-06-30 12:59:45,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 51 transitions. [2021-06-30 12:59:45,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:59:45,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 51 transitions. [2021-06-30 12:59:45,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-06-30 12:59:45,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2021-06-30 12:59:45,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2021-06-30 12:59:45,056 INFO L185 Difference]: Start difference. First operand has 24 places, 17 transitions, 52 flow. Second operand 3 states and 51 transitions. [2021-06-30 12:59:45,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 80 flow [2021-06-30 12:59:45,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 68 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-06-30 12:59:45,062 INFO L241 Difference]: Finished difference. Result has 21 places, 20 transitions, 66 flow [2021-06-30 12:59:45,063 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=21, PETRI_TRANSITIONS=20} [2021-06-30 12:59:45,064 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, -3 predicate places. [2021-06-30 12:59:45,064 INFO L482 AbstractCegarLoop]: Abstraction has has 21 places, 20 transitions, 66 flow [2021-06-30 12:59:45,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2021-06-30 12:59:45,064 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:59:45,064 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:59:45,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-30 12:59:45,064 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:59:45,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:59:45,065 INFO L82 PathProgramCache]: Analyzing trace with hash -518282655, now seen corresponding path program 1 times [2021-06-30 12:59:45,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:59:45,065 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269380549] [2021-06-30 12:59:45,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:59:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:59:45,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,120 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-30 12:59:45,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:59:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:59:45,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:59:45,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269380549] [2021-06-30 12:59:45,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269380549] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-30 12:59:45,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-30 12:59:45,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-30 12:59:45,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726184595] [2021-06-30 12:59:45,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-30 12:59:45,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:59:45,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-30 12:59:45,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-30 12:59:45,134 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 22 [2021-06-30 12:59:45,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 20 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-06-30 12:59:45,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:59:45,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 22 [2021-06-30 12:59:45,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:59:45,177 INFO L129 PetriNetUnfolder]: 48/100 cut-off events. [2021-06-30 12:59:45,177 INFO L130 PetriNetUnfolder]: For 22/28 co-relation queries the response was YES. [2021-06-30 12:59:45,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 100 events. 48/100 cut-off events. For 22/28 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 301 event pairs, 2 based on Foata normal form. 3/101 useless extension candidates. Maximal degree in co-relation 193. Up to 50 conditions per place. [2021-06-30 12:59:45,179 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 7 selfloop transitions, 13 changer transitions 0/29 dead transitions. [2021-06-30 12:59:45,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 29 transitions, 136 flow [2021-06-30 12:59:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-30 12:59:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-30 12:59:45,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-06-30 12:59:45,182 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7954545454545454 [2021-06-30 12:59:45,182 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-06-30 12:59:45,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-06-30 12:59:45,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:59:45,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-06-30 12:59:45,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-06-30 12:59:45,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2021-06-30 12:59:45,183 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2021-06-30 12:59:45,183 INFO L185 Difference]: Start difference. First operand has 21 places, 20 transitions, 66 flow. Second operand 4 states and 70 transitions. [2021-06-30 12:59:45,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 29 transitions, 136 flow [2021-06-30 12:59:45,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 29 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-30 12:59:45,185 INFO L241 Difference]: Finished difference. Result has 25 places, 29 transitions, 154 flow [2021-06-30 12:59:45,185 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=25, PETRI_TRANSITIONS=29} [2021-06-30 12:59:45,186 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2021-06-30 12:59:45,186 INFO L482 AbstractCegarLoop]: Abstraction has has 25 places, 29 transitions, 154 flow [2021-06-30 12:59:45,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-06-30 12:59:45,186 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:59:45,186 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:59:45,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-30 12:59:45,187 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:59:45,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:59:45,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1850230007, now seen corresponding path program 1 times [2021-06-30 12:59:45,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:59:45,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181737984] [2021-06-30 12:59:45,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:59:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:59:45,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,243 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-30 12:59:45,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:59:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:59:45,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:59:45,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181737984] [2021-06-30 12:59:45,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181737984] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:59:45,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400784963] [2021-06-30 12:59:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:59:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:59:45,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-30 12:59:45,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:59:45,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:45,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:45,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:45,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:45,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:59:45,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400784963] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:59:45,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:59:45,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-30 12:59:45,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057781546] [2021-06-30 12:59:45,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-30 12:59:45,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:59:45,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-30 12:59:45,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-30 12:59:45,405 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 22 [2021-06-30 12:59:45,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 29 transitions, 154 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 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) [2021-06-30 12:59:45,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:59:45,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 22 [2021-06-30 12:59:45,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:59:45,456 INFO L129 PetriNetUnfolder]: 62/131 cut-off events. [2021-06-30 12:59:45,456 INFO L130 PetriNetUnfolder]: For 98/110 co-relation queries the response was YES. [2021-06-30 12:59:45,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 406 conditions, 131 events. 62/131 cut-off events. For 98/110 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 432 event pairs, 5 based on Foata normal form. 5/134 useless extension candidates. Maximal degree in co-relation 367. Up to 58 conditions per place. [2021-06-30 12:59:45,458 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 7 selfloop transitions, 28 changer transitions 0/44 dead transitions. [2021-06-30 12:59:45,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 44 transitions, 302 flow [2021-06-30 12:59:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-30 12:59:45,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-30 12:59:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-06-30 12:59:45,462 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8090909090909091 [2021-06-30 12:59:45,462 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2021-06-30 12:59:45,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2021-06-30 12:59:45,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:59:45,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2021-06-30 12:59:45,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2021-06-30 12:59:45,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2021-06-30 12:59:45,464 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2021-06-30 12:59:45,464 INFO L185 Difference]: Start difference. First operand has 25 places, 29 transitions, 154 flow. Second operand 5 states and 89 transitions. [2021-06-30 12:59:45,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 44 transitions, 302 flow [2021-06-30 12:59:45,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 44 transitions, 296 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-06-30 12:59:45,467 INFO L241 Difference]: Finished difference. Result has 30 places, 44 transitions, 312 flow [2021-06-30 12:59:45,467 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=312, PETRI_PLACES=30, PETRI_TRANSITIONS=44} [2021-06-30 12:59:45,467 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2021-06-30 12:59:45,467 INFO L482 AbstractCegarLoop]: Abstraction has has 30 places, 44 transitions, 312 flow [2021-06-30 12:59:45,467 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 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) [2021-06-30 12:59:45,467 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-30 12:59:45,468 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-30 12:59:45,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-06-30 12:59:45,685 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 12:59:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 12:59:45,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1217518529, now seen corresponding path program 1 times [2021-06-30 12:59:45,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 12:59:45,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073469967] [2021-06-30 12:59:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 12:59:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:59:45,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,752 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-30 12:59:45,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-30 12:59:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:59:45,755 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 12:59:45,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073469967] [2021-06-30 12:59:45,755 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073469967] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:59:45,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302190294] [2021-06-30 12:59:45,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:59:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 12:59:45,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-30 12:59:45,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 12:59:45,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:45,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:45,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:45,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-30 12:59:45,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-30 12:59:45,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-30 12:59:45,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-30 12:59:45,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302190294] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 12:59:45,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 12:59:45,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-06-30 12:59:45,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040802516] [2021-06-30 12:59:45,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-30 12:59:45,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 12:59:45,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-30 12:59:45,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-30 12:59:45,893 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 22 [2021-06-30 12:59:45,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 44 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2021-06-30 12:59:45,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-30 12:59:45,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 22 [2021-06-30 12:59:45,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-30 12:59:45,962 INFO L129 PetriNetUnfolder]: 62/130 cut-off events. [2021-06-30 12:59:45,962 INFO L130 PetriNetUnfolder]: For 121/133 co-relation queries the response was YES. [2021-06-30 12:59:45,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 130 events. 62/130 cut-off events. For 121/133 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 426 event pairs, 0 based on Foata normal form. 5/133 useless extension candidates. Maximal degree in co-relation 460. Up to 45 conditions per place. [2021-06-30 12:59:45,963 INFO L132 encePairwiseOnDemand]: 14/22 looper letters, 0 selfloop transitions, 0 changer transitions 55/55 dead transitions. [2021-06-30 12:59:45,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 55 transitions, 480 flow [2021-06-30 12:59:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-30 12:59:45,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-30 12:59:45,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2021-06-30 12:59:45,965 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7424242424242424 [2021-06-30 12:59:45,965 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 98 transitions. [2021-06-30 12:59:45,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 98 transitions. [2021-06-30 12:59:45,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-30 12:59:45,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 98 transitions. [2021-06-30 12:59:45,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2021-06-30 12:59:45,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 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) [2021-06-30 12:59:45,966 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 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) [2021-06-30 12:59:45,967 INFO L185 Difference]: Start difference. First operand has 30 places, 44 transitions, 312 flow. Second operand 6 states and 98 transitions. [2021-06-30 12:59:45,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 55 transitions, 480 flow [2021-06-30 12:59:45,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 55 transitions, 370 flow, removed 42 selfloop flow, removed 2 redundant places. [2021-06-30 12:59:45,970 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-06-30 12:59:45,970 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-06-30 12:59:45,970 INFO L335 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2021-06-30 12:59:45,970 INFO L482 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2021-06-30 12:59:45,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2021-06-30 12:59:46,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 12:59:46,187 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-30 12:59:46,189 INFO L202 PluginConnector]: Adding new model incr-decr03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.06 12:59:46 BasicIcfg [2021-06-30 12:59:46,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-30 12:59:46,190 INFO L168 Benchmark]: Toolchain (without parser) took 1703.13 ms. Allocated memory is still 170.9 MB. Free memory was 152.1 MB in the beginning and 122.3 MB in the end (delta: 29.7 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB. [2021-06-30 12:59:46,190 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 170.9 MB. Free memory is still 153.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 12:59:46,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.39 ms. Allocated memory is still 170.9 MB. Free memory was 152.0 MB in the beginning and 150.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 12:59:46,190 INFO L168 Benchmark]: Boogie Preprocessor took 11.68 ms. Allocated memory is still 170.9 MB. Free memory was 150.5 MB in the beginning and 149.7 MB in the end (delta: 847.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-30 12:59:46,190 INFO L168 Benchmark]: RCFGBuilder took 139.21 ms. Allocated memory is still 170.9 MB. Free memory was 149.6 MB in the beginning and 141.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-06-30 12:59:46,190 INFO L168 Benchmark]: TraceAbstraction took 1525.93 ms. Allocated memory is still 170.9 MB. Free memory was 140.4 MB in the beginning and 122.3 MB in the end (delta: 18.1 MB). Peak memory consumption was 19.7 MB. Max. memory is 8.0 GB. [2021-06-30 12:59:46,191 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 0.10 ms. Allocated memory is still 170.9 MB. Free memory is still 153.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.39 ms. Allocated memory is still 170.9 MB. Free memory was 152.0 MB in the beginning and 150.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.68 ms. Allocated memory is still 170.9 MB. Free memory was 150.5 MB in the beginning and 149.7 MB in the end (delta: 847.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 139.21 ms. Allocated memory is still 170.9 MB. Free memory was 149.6 MB in the beginning and 141.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1525.93 ms. Allocated memory is still 170.9 MB. Free memory was 140.4 MB in the beginning and 122.3 MB in the end (delta: 18.1 MB). Peak memory consumption was 19.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1446.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 299.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 25.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 166 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 82.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=3, InterpolantAutomatonStates: 18, 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: 13.7ms SsaConstructionTime, 50.2ms SatisfiabilityAnalysisTime, 441.8ms InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 534 SizeOfPredicates, 0 NumberOfNonLiveVariables, 84 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 5/11 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...