/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 23:17:30,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 23:17:30,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 23:17:30,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 23:17:30,451 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-FA-NoLbe.epf [2021-03-10 23:17:30,480 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 23:17:30,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 23:17:30,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 23:17:30,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 23:17:30,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 23:17:30,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 23:17:30,484 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 23:17:30,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 23:17:30,484 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 23:17:30,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 23:17:30,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 23:17:30,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 23:17:30,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 23:17:30,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 23:17:30,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 23:17:30,486 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 23:17:30,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 23:17:30,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 23:17:30,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 23:17:30,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 23:17:30,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 23:17:30,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 23:17:30,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 23:17:30,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 23:17:30,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 23:17:30,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 23:17:30,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 23:17:30,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 23:17:30,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 23:17:30,488 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 23:17:30,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 23:17:30,488 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 23:17:30,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 23:17:30,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 23:17:30,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 23:17:30,781 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-10 23:17:30,783 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-10 23:17:30,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl [2021-03-10 23:17:30,784 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl' [2021-03-10 23:17:30,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 23:17:30,856 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-10 23:17:30,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 23:17:30,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 23:17:30,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 23:17:30,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (1/1) ... [2021-03-10 23:17:30,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (1/1) ... [2021-03-10 23:17:30,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 23:17:30,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 23:17:30,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 23:17:30,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 23:17:30,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (1/1) ... [2021-03-10 23:17:30,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (1/1) ... [2021-03-10 23:17:30,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (1/1) ... [2021-03-10 23:17:30,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (1/1) ... [2021-03-10 23:17:30,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (1/1) ... [2021-03-10 23:17:30,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (1/1) ... [2021-03-10 23:17:30,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (1/1) ... [2021-03-10 23:17:30,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 23:17:30,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 23:17:30,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 23:17:30,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 23:17:30,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (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 [2021-03-10 23:17:30,960 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-10 23:17:30,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-10 23:17:30,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-10 23:17:30,960 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-10 23:17:30,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-10 23:17:30,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-10 23:17:30,960 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-10 23:17:30,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 23:17:30,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 23:17:30,961 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-10 23:17:30,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-10 23:17:30,961 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-10 23:17:30,961 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 23:17:31,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 23:17:31,165 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-10 23:17:31,167 INFO L202 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 11:17:31 BoogieIcfgContainer [2021-03-10 23:17:31,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 23:17:31,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 23:17:31,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 23:17:31,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 23:17:31,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.03 11:17:30" (1/2) ... [2021-03-10 23:17:31,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa499c7 and model type three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 11:17:31, skipping insertion in model container [2021-03-10 23:17:31,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 11:17:31" (2/2) ... [2021-03-10 23:17:31,172 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-max.wvr.bpl [2021-03-10 23:17:31,175 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 23:17:31,175 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 23:17:31,178 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 23:17:31,178 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 23:17:31,207 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-10 23:17:31,218 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-10 23:17:31,231 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 23:17:31,231 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 23:17:31,231 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 23:17:31,231 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 23:17:31,231 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 23:17:31,231 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 23:17:31,231 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 23:17:31,231 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 23:17:31,240 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 32 transitions, 88 flow [2021-03-10 23:17:31,264 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 136 states, 134 states have (on average 2.970149253731343) internal successors, (398), 135 states have internal predecessors, (398), 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) [2021-03-10 23:17:31,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 134 states have (on average 2.970149253731343) internal successors, (398), 135 states have internal predecessors, (398), 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) [2021-03-10 23:17:31,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-10 23:17:31,277 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:31,278 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:31,278 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:31,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:31,286 INFO L82 PathProgramCache]: Analyzing trace with hash 567574338, now seen corresponding path program 1 times [2021-03-10 23:17:31,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:31,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547207576] [2021-03-10 23:17:31,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:31,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:31,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547207576] [2021-03-10 23:17:31,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 23:17:31,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 23:17:31,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097689213] [2021-03-10 23:17:31,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 23:17:31,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:31,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 23:17:31,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-10 23:17:31,495 INFO L87 Difference]: Start difference. First operand has 136 states, 134 states have (on average 2.970149253731343) internal successors, (398), 135 states have internal predecessors, (398), 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) Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-03-10 23:17:31,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:31,570 INFO L93 Difference]: Finished difference Result 474 states and 1450 transitions. [2021-03-10 23:17:31,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 23:17:31,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) Word has length 19 [2021-03-10 23:17:31,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:31,588 INFO L225 Difference]: With dead ends: 474 [2021-03-10 23:17:31,588 INFO L226 Difference]: Without dead ends: 388 [2021-03-10 23:17:31,589 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.1ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-10 23:17:31,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-03-10 23:17:31,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 176. [2021-03-10 23:17:31,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 3.0914285714285716) internal successors, (541), 175 states have internal predecessors, (541), 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) [2021-03-10 23:17:31,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 541 transitions. [2021-03-10 23:17:31,653 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 541 transitions. Word has length 19 [2021-03-10 23:17:31,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:31,654 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 541 transitions. [2021-03-10 23:17:31,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-03-10 23:17:31,654 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 541 transitions. [2021-03-10 23:17:31,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-10 23:17:31,659 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:31,659 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:31,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 23:17:31,660 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:31,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:31,663 INFO L82 PathProgramCache]: Analyzing trace with hash -140933138, now seen corresponding path program 1 times [2021-03-10 23:17:31,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:31,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687441836] [2021-03-10 23:17:31,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:31,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687441836] [2021-03-10 23:17:31,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 23:17:31,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 23:17:31,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927708951] [2021-03-10 23:17:31,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-10 23:17:31,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:31,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-10 23:17:31,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 23:17:31,713 INFO L87 Difference]: Start difference. First operand 176 states and 541 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-03-10 23:17:31,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:31,782 INFO L93 Difference]: Finished difference Result 346 states and 1050 transitions. [2021-03-10 23:17:31,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-10 23:17:31,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) Word has length 22 [2021-03-10 23:17:31,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:31,786 INFO L225 Difference]: With dead ends: 346 [2021-03-10 23:17:31,786 INFO L226 Difference]: Without dead ends: 323 [2021-03-10 23:17:31,787 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-10 23:17:31,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-03-10 23:17:31,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 253. [2021-03-10 23:17:31,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 252 states have (on average 3.142857142857143) internal successors, (792), 252 states have internal predecessors, (792), 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) [2021-03-10 23:17:31,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 792 transitions. [2021-03-10 23:17:31,816 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 792 transitions. Word has length 22 [2021-03-10 23:17:31,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:31,816 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 792 transitions. [2021-03-10 23:17:31,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-03-10 23:17:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 792 transitions. [2021-03-10 23:17:31,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-10 23:17:31,819 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:31,819 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:31,819 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 23:17:31,819 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:31,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:31,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1960572944, now seen corresponding path program 2 times [2021-03-10 23:17:31,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:31,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021571253] [2021-03-10 23:17:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:31,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021571253] [2021-03-10 23:17:31,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 23:17:31,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 23:17:31,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606531892] [2021-03-10 23:17:31,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-10 23:17:31,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:31,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-10 23:17:31,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 23:17:31,863 INFO L87 Difference]: Start difference. First operand 253 states and 792 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-03-10 23:17:31,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:31,917 INFO L93 Difference]: Finished difference Result 495 states and 1542 transitions. [2021-03-10 23:17:31,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-10 23:17:31,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) Word has length 22 [2021-03-10 23:17:31,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:31,921 INFO L225 Difference]: With dead ends: 495 [2021-03-10 23:17:31,921 INFO L226 Difference]: Without dead ends: 472 [2021-03-10 23:17:31,921 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-10 23:17:31,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-03-10 23:17:31,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 304. [2021-03-10 23:17:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 3.283828382838284) internal successors, (995), 303 states have internal predecessors, (995), 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) [2021-03-10 23:17:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 995 transitions. [2021-03-10 23:17:31,937 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 995 transitions. Word has length 22 [2021-03-10 23:17:31,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:31,937 INFO L480 AbstractCegarLoop]: Abstraction has 304 states and 995 transitions. [2021-03-10 23:17:31,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-03-10 23:17:31,941 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 995 transitions. [2021-03-10 23:17:31,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-03-10 23:17:31,942 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:31,942 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:31,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 23:17:31,942 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:31,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:31,943 INFO L82 PathProgramCache]: Analyzing trace with hash -515537296, now seen corresponding path program 3 times [2021-03-10 23:17:31,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:31,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387646529] [2021-03-10 23:17:31,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:31,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387646529] [2021-03-10 23:17:31,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 23:17:31,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 23:17:31,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148838377] [2021-03-10 23:17:31,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-10 23:17:31,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:31,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-10 23:17:31,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 23:17:31,979 INFO L87 Difference]: Start difference. First operand 304 states and 995 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-03-10 23:17:32,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:32,019 INFO L93 Difference]: Finished difference Result 348 states and 1103 transitions. [2021-03-10 23:17:32,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-10 23:17:32,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) Word has length 22 [2021-03-10 23:17:32,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:32,022 INFO L225 Difference]: With dead ends: 348 [2021-03-10 23:17:32,022 INFO L226 Difference]: Without dead ends: 348 [2021-03-10 23:17:32,022 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-10 23:17:32,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-03-10 23:17:32,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 296. [2021-03-10 23:17:32,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 3.169491525423729) internal successors, (935), 295 states have internal predecessors, (935), 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) [2021-03-10 23:17:32,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 935 transitions. [2021-03-10 23:17:32,030 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 935 transitions. Word has length 22 [2021-03-10 23:17:32,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:32,031 INFO L480 AbstractCegarLoop]: Abstraction has 296 states and 935 transitions. [2021-03-10 23:17:32,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-03-10 23:17:32,031 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 935 transitions. [2021-03-10 23:17:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-03-10 23:17:32,032 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:32,032 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:32,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 23:17:32,032 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:32,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:32,032 INFO L82 PathProgramCache]: Analyzing trace with hash 988591096, now seen corresponding path program 1 times [2021-03-10 23:17:32,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:32,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274450124] [2021-03-10 23:17:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:32,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:32,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274450124] [2021-03-10 23:17:32,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 23:17:32,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 23:17:32,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082080503] [2021-03-10 23:17:32,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-10 23:17:32,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:32,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-10 23:17:32,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 23:17:32,084 INFO L87 Difference]: Start difference. First operand 296 states and 935 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-03-10 23:17:32,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:32,123 INFO L93 Difference]: Finished difference Result 309 states and 971 transitions. [2021-03-10 23:17:32,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-10 23:17:32,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) Word has length 24 [2021-03-10 23:17:32,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:32,126 INFO L225 Difference]: With dead ends: 309 [2021-03-10 23:17:32,126 INFO L226 Difference]: Without dead ends: 309 [2021-03-10 23:17:32,127 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-10 23:17:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-03-10 23:17:32,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 256. [2021-03-10 23:17:32,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 3.1372549019607843) internal successors, (800), 255 states have internal predecessors, (800), 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) [2021-03-10 23:17:32,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 800 transitions. [2021-03-10 23:17:32,136 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 800 transitions. Word has length 24 [2021-03-10 23:17:32,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:32,136 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 800 transitions. [2021-03-10 23:17:32,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-03-10 23:17:32,136 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 800 transitions. [2021-03-10 23:17:32,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 23:17:32,137 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:32,137 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:32,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 23:17:32,137 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:32,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:32,137 INFO L82 PathProgramCache]: Analyzing trace with hash -2015295284, now seen corresponding path program 1 times [2021-03-10 23:17:32,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:32,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756724623] [2021-03-10 23:17:32,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:32,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756724623] [2021-03-10 23:17:32,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979952756] [2021-03-10 23:17:32,458 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 [2021-03-10 23:17:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:32,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-10 23:17:32,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:32,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-03-10 23:17:32,941 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:17:32,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-03-10 23:17:32,956 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:17:32,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-03-10 23:17:32,965 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:17:32,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-03-10 23:17:32,976 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:17:33,029 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:33,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-03-10 23:17:33,047 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:17:33,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2021-03-10 23:17:33,067 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:17:33,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2021-03-10 23:17:33,077 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:17:33,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-03-10 23:17:33,085 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:17:33,131 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:33,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-03-10 23:17:33,140 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:33,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-03-10 23:17:33,146 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:33,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-03-10 23:17:33,152 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:33,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-03-10 23:17:33,162 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:33,204 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:33,214 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-03-10 23:17:33,215 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:197, output treesize:58 [2021-03-10 23:17:33,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-10 23:17:33,313 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:33,319 INFO L628 ElimStorePlain]: treesize reduction 27, result has 15.6 percent of original size [2021-03-10 23:17:33,320 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1 vanished before elimination [2021-03-10 23:17:33,320 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:17:33,320 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:5 [2021-03-10 23:17:33,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:33,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:33,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-03-10 23:17:33,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774727401] [2021-03-10 23:17:33,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 23:17:33,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:33,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 23:17:33,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-03-10 23:17:33,328 INFO L87 Difference]: Start difference. First operand 256 states and 800 transitions. Second operand has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 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) [2021-03-10 23:17:33,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:33,511 INFO L93 Difference]: Finished difference Result 525 states and 1652 transitions. [2021-03-10 23:17:33,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 23:17:33,511 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 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) Word has length 26 [2021-03-10 23:17:33,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:33,514 INFO L225 Difference]: With dead ends: 525 [2021-03-10 23:17:33,514 INFO L226 Difference]: Without dead ends: 482 [2021-03-10 23:17:33,514 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 337.5ms TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2021-03-10 23:17:33,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-03-10 23:17:33,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 373. [2021-03-10 23:17:33,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 3.161290322580645) internal successors, (1176), 372 states have internal predecessors, (1176), 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) [2021-03-10 23:17:33,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1176 transitions. [2021-03-10 23:17:33,522 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1176 transitions. Word has length 26 [2021-03-10 23:17:33,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:33,522 INFO L480 AbstractCegarLoop]: Abstraction has 373 states and 1176 transitions. [2021-03-10 23:17:33,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 14 states have internal predecessors, (47), 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) [2021-03-10 23:17:33,523 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1176 transitions. [2021-03-10 23:17:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 23:17:33,523 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:33,524 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:33,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-03-10 23:17:33,732 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:33,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:33,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1060994158, now seen corresponding path program 2 times [2021-03-10 23:17:33,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:33,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960259256] [2021-03-10 23:17:33,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:33,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:33,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960259256] [2021-03-10 23:17:33,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 23:17:33,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-10 23:17:33,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040781306] [2021-03-10 23:17:33,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 23:17:33,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:33,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 23:17:33,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 23:17:33,749 INFO L87 Difference]: Start difference. First operand 373 states and 1176 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-03-10 23:17:33,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:33,759 INFO L93 Difference]: Finished difference Result 524 states and 1595 transitions. [2021-03-10 23:17:33,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 23:17:33,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) Word has length 26 [2021-03-10 23:17:33,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:33,761 INFO L225 Difference]: With dead ends: 524 [2021-03-10 23:17:33,761 INFO L226 Difference]: Without dead ends: 476 [2021-03-10 23:17:33,761 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 23:17:33,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-03-10 23:17:33,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 403. [2021-03-10 23:17:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 3.0970149253731343) internal successors, (1245), 402 states have internal predecessors, (1245), 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) [2021-03-10 23:17:33,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 1245 transitions. [2021-03-10 23:17:33,770 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 1245 transitions. Word has length 26 [2021-03-10 23:17:33,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:33,770 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 1245 transitions. [2021-03-10 23:17:33,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-03-10 23:17:33,770 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 1245 transitions. [2021-03-10 23:17:33,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 23:17:33,771 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:33,771 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:33,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-10 23:17:33,771 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:33,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:33,772 INFO L82 PathProgramCache]: Analyzing trace with hash -294633458, now seen corresponding path program 3 times [2021-03-10 23:17:33,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:33,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715028758] [2021-03-10 23:17:33,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:34,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:34,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715028758] [2021-03-10 23:17:34,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387335771] [2021-03-10 23:17:34,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2021-03-10 23:17:34,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-10 23:17:34,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:34,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-10 23:17:34,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:34,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:34,113 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:34,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,121 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2021-03-10 23:17:34,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2021-03-10 23:17:34,228 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2021-03-10 23:17:34,233 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2021-03-10 23:17:34,239 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2021-03-10 23:17:34,243 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,276 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:34,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 23 [2021-03-10 23:17:34,282 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2021-03-10 23:17:34,288 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-03-10 23:17:34,295 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2021-03-10 23:17:34,300 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,318 INFO L628 ElimStorePlain]: treesize reduction 40, result has 28.6 percent of original size [2021-03-10 23:17:34,319 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,319 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:185, output treesize:16 [2021-03-10 23:17:34,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-03-10 23:17:34,374 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,375 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-03-10 23:17:34,375 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,376 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:34,377 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:17:34,377 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:5 [2021-03-10 23:17:34,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:34,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:34,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2021-03-10 23:17:34,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426082620] [2021-03-10 23:17:34,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 23:17:34,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:34,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 23:17:34,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-03-10 23:17:34,385 INFO L87 Difference]: Start difference. First operand 403 states and 1245 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 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) [2021-03-10 23:17:34,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:34,758 INFO L93 Difference]: Finished difference Result 926 states and 2795 transitions. [2021-03-10 23:17:34,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 23:17:34,758 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 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) Word has length 26 [2021-03-10 23:17:34,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:34,762 INFO L225 Difference]: With dead ends: 926 [2021-03-10 23:17:34,762 INFO L226 Difference]: Without dead ends: 808 [2021-03-10 23:17:34,763 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 432.1ms TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2021-03-10 23:17:34,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2021-03-10 23:17:34,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 427. [2021-03-10 23:17:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 3.096244131455399) internal successors, (1319), 426 states have internal predecessors, (1319), 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) [2021-03-10 23:17:34,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1319 transitions. [2021-03-10 23:17:34,775 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1319 transitions. Word has length 26 [2021-03-10 23:17:34,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:34,775 INFO L480 AbstractCegarLoop]: Abstraction has 427 states and 1319 transitions. [2021-03-10 23:17:34,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 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) [2021-03-10 23:17:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1319 transitions. [2021-03-10 23:17:34,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-03-10 23:17:34,776 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:34,776 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:34,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:34,984 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:34,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:34,984 INFO L82 PathProgramCache]: Analyzing trace with hash 108055770, now seen corresponding path program 4 times [2021-03-10 23:17:34,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:34,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701347454] [2021-03-10 23:17:34,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:35,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:35,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701347454] [2021-03-10 23:17:35,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161971349] [2021-03-10 23:17:35,151 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:35,178 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 23:17:35,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:35,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-03-10 23:17:35,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:35,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:35,249 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,256 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:35,257 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,259 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2021-03-10 23:17:35,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-03-10 23:17:35,306 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-03-10 23:17:35,309 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,331 INFO L628 ElimStorePlain]: treesize reduction 15, result has 75.8 percent of original size [2021-03-10 23:17:35,332 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-10 23:17:35,332 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:76, output treesize:47 [2021-03-10 23:17:35,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-03-10 23:17:35,478 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-03-10 23:17:35,482 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-03-10 23:17:35,487 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-03-10 23:17:35,491 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,582 INFO L628 ElimStorePlain]: treesize reduction 38, result has 81.5 percent of original size [2021-03-10 23:17:35,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-03-10 23:17:35,588 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-03-10 23:17:35,597 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,615 INFO L628 ElimStorePlain]: treesize reduction 134, result has 3.6 percent of original size [2021-03-10 23:17:35,615 INFO L518 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2021-03-10 23:17:35,615 INFO L518 ElimStorePlain]: Eliminatee v_prenex_3 vanished before elimination [2021-03-10 23:17:35,616 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:17:35,616 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:257, output treesize:5 [2021-03-10 23:17:35,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:35,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:35,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-03-10 23:17:35,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894286357] [2021-03-10 23:17:35,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 23:17:35,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:35,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 23:17:35,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-03-10 23:17:35,627 INFO L87 Difference]: Start difference. First operand 427 states and 1319 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 14 states have internal predecessors, (43), 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) [2021-03-10 23:17:35,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:35,815 INFO L93 Difference]: Finished difference Result 693 states and 2174 transitions. [2021-03-10 23:17:35,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 23:17:35,815 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 14 states have internal predecessors, (43), 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) Word has length 26 [2021-03-10 23:17:35,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:35,821 INFO L225 Difference]: With dead ends: 693 [2021-03-10 23:17:35,821 INFO L226 Difference]: Without dead ends: 604 [2021-03-10 23:17:35,821 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 258.0ms TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2021-03-10 23:17:35,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-03-10 23:17:35,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 431. [2021-03-10 23:17:35,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 3.109302325581395) internal successors, (1337), 430 states have internal predecessors, (1337), 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) [2021-03-10 23:17:35,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 1337 transitions. [2021-03-10 23:17:35,843 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 1337 transitions. Word has length 26 [2021-03-10 23:17:35,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:35,843 INFO L480 AbstractCegarLoop]: Abstraction has 431 states and 1337 transitions. [2021-03-10 23:17:35,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 14 states have internal predecessors, (43), 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) [2021-03-10 23:17:35,843 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 1337 transitions. [2021-03-10 23:17:35,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 23:17:35,844 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:35,844 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:36,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-03-10 23:17:36,055 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:36,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1752316266, now seen corresponding path program 5 times [2021-03-10 23:17:36,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:36,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205917811] [2021-03-10 23:17:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:36,082 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:36,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205917811] [2021-03-10 23:17:36,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649053301] [2021-03-10 23:17:36,083 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:36,107 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-10 23:17:36,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:36,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-10 23:17:36,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:36,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:36,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-03-10 23:17:36,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836246423] [2021-03-10 23:17:36,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 23:17:36,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:36,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 23:17:36,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-10 23:17:36,145 INFO L87 Difference]: Start difference. First operand 431 states and 1337 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-03-10 23:17:36,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:36,232 INFO L93 Difference]: Finished difference Result 1077 states and 3313 transitions. [2021-03-10 23:17:36,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 23:17:36,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) Word has length 28 [2021-03-10 23:17:36,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:36,239 INFO L225 Difference]: With dead ends: 1077 [2021-03-10 23:17:36,239 INFO L226 Difference]: Without dead ends: 1071 [2021-03-10 23:17:36,239 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-03-10 23:17:36,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2021-03-10 23:17:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 723. [2021-03-10 23:17:36,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 3.3005540166204987) internal successors, (2383), 722 states have internal predecessors, (2383), 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) [2021-03-10 23:17:36,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 2383 transitions. [2021-03-10 23:17:36,256 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 2383 transitions. Word has length 28 [2021-03-10 23:17:36,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:36,256 INFO L480 AbstractCegarLoop]: Abstraction has 723 states and 2383 transitions. [2021-03-10 23:17:36,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-03-10 23:17:36,257 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 2383 transitions. [2021-03-10 23:17:36,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-03-10 23:17:36,258 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:36,259 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:36,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:36,476 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:36,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:36,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1505385586, now seen corresponding path program 6 times [2021-03-10 23:17:36,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:36,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474964280] [2021-03-10 23:17:36,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:36,505 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:36,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474964280] [2021-03-10 23:17:36,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971094492] [2021-03-10 23:17:36,505 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:36,533 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-03-10 23:17:36,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:36,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-10 23:17:36,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:36,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:36,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:36,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-03-10 23:17:36,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535190098] [2021-03-10 23:17:36,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-10 23:17:36,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:36,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-10 23:17:36,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-10 23:17:36,589 INFO L87 Difference]: Start difference. First operand 723 states and 2383 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 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) [2021-03-10 23:17:37,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:37,035 INFO L93 Difference]: Finished difference Result 3105 states and 9211 transitions. [2021-03-10 23:17:37,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 23:17:37,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 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) Word has length 28 [2021-03-10 23:17:37,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:37,048 INFO L225 Difference]: With dead ends: 3105 [2021-03-10 23:17:37,048 INFO L226 Difference]: Without dead ends: 2785 [2021-03-10 23:17:37,049 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 229.2ms TimeCoverageRelationStatistics Valid=384, Invalid=1098, Unknown=0, NotChecked=0, Total=1482 [2021-03-10 23:17:37,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2021-03-10 23:17:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 704. [2021-03-10 23:17:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 703 states have (on average 3.3357041251778092) internal successors, (2345), 703 states have internal predecessors, (2345), 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) [2021-03-10 23:17:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 2345 transitions. [2021-03-10 23:17:37,078 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 2345 transitions. Word has length 28 [2021-03-10 23:17:37,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:37,078 INFO L480 AbstractCegarLoop]: Abstraction has 704 states and 2345 transitions. [2021-03-10 23:17:37,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 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) [2021-03-10 23:17:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 2345 transitions. [2021-03-10 23:17:37,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-03-10 23:17:37,080 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:37,080 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:37,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-03-10 23:17:37,295 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:37,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:37,295 INFO L82 PathProgramCache]: Analyzing trace with hash -2070734300, now seen corresponding path program 7 times [2021-03-10 23:17:37,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:37,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722499831] [2021-03-10 23:17:37,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:37,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722499831] [2021-03-10 23:17:37,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552050470] [2021-03-10 23:17:37,324 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:37,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-10 23:17:37,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:37,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:37,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-03-10 23:17:37,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836254521] [2021-03-10 23:17:37,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 23:17:37,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:37,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 23:17:37,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-10 23:17:37,382 INFO L87 Difference]: Start difference. First operand 704 states and 2345 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-03-10 23:17:37,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:37,446 INFO L93 Difference]: Finished difference Result 1879 states and 6186 transitions. [2021-03-10 23:17:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 23:17:37,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) Word has length 29 [2021-03-10 23:17:37,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:37,453 INFO L225 Difference]: With dead ends: 1879 [2021-03-10 23:17:37,453 INFO L226 Difference]: Without dead ends: 1673 [2021-03-10 23:17:37,453 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.9ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-03-10 23:17:37,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2021-03-10 23:17:37,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1433. [2021-03-10 23:17:37,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1432 states have (on average 3.4120111731843576) internal successors, (4886), 1432 states have internal predecessors, (4886), 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) [2021-03-10 23:17:37,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 4886 transitions. [2021-03-10 23:17:37,487 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 4886 transitions. Word has length 29 [2021-03-10 23:17:37,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:37,487 INFO L480 AbstractCegarLoop]: Abstraction has 1433 states and 4886 transitions. [2021-03-10 23:17:37,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-03-10 23:17:37,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 4886 transitions. [2021-03-10 23:17:37,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-03-10 23:17:37,491 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:37,492 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:37,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:37,709 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:37,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:37,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1864074648, now seen corresponding path program 8 times [2021-03-10 23:17:37,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:37,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482917085] [2021-03-10 23:17:37,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:37,734 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:37,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482917085] [2021-03-10 23:17:37,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638534292] [2021-03-10 23:17:37,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:37,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 23:17:37,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:37,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-10 23:17:37,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:37,841 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:37,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:37,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-03-10 23:17:37,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302796399] [2021-03-10 23:17:37,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-10 23:17:37,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:37,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-10 23:17:37,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-10 23:17:37,842 INFO L87 Difference]: Start difference. First operand 1433 states and 4886 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2021-03-10 23:17:38,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:38,280 INFO L93 Difference]: Finished difference Result 3885 states and 12614 transitions. [2021-03-10 23:17:38,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 23:17:38,280 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) Word has length 29 [2021-03-10 23:17:38,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:38,297 INFO L225 Difference]: With dead ends: 3885 [2021-03-10 23:17:38,298 INFO L226 Difference]: Without dead ends: 3731 [2021-03-10 23:17:38,298 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 210.6ms TimeCoverageRelationStatistics Valid=342, Invalid=1064, Unknown=0, NotChecked=0, Total=1406 [2021-03-10 23:17:38,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2021-03-10 23:17:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 2319. [2021-03-10 23:17:38,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 2318 states have (on average 3.567299396031061) internal successors, (8269), 2318 states have internal predecessors, (8269), 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) [2021-03-10 23:17:38,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 8269 transitions. [2021-03-10 23:17:38,376 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 8269 transitions. Word has length 29 [2021-03-10 23:17:38,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:38,377 INFO L480 AbstractCegarLoop]: Abstraction has 2319 states and 8269 transitions. [2021-03-10 23:17:38,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2021-03-10 23:17:38,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 8269 transitions. [2021-03-10 23:17:38,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-03-10 23:17:38,381 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:38,382 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:38,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-03-10 23:17:38,598 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:38,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:38,598 INFO L82 PathProgramCache]: Analyzing trace with hash 647783004, now seen corresponding path program 9 times [2021-03-10 23:17:38,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:38,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220512830] [2021-03-10 23:17:38,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:38,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220512830] [2021-03-10 23:17:38,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84127207] [2021-03-10 23:17:38,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:38,657 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-10 23:17:38,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:38,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-10 23:17:38,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:38,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:38,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-10 23:17:38,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212485599] [2021-03-10 23:17:38,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 23:17:38,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:38,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 23:17:38,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-10 23:17:38,693 INFO L87 Difference]: Start difference. First operand 2319 states and 8269 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-03-10 23:17:38,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:38,770 INFO L93 Difference]: Finished difference Result 3632 states and 12765 transitions. [2021-03-10 23:17:38,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 23:17:38,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) Word has length 29 [2021-03-10 23:17:38,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:38,785 INFO L225 Difference]: With dead ends: 3632 [2021-03-10 23:17:38,785 INFO L226 Difference]: Without dead ends: 3577 [2021-03-10 23:17:38,785 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-10 23:17:38,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2021-03-10 23:17:38,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3218. [2021-03-10 23:17:38,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3217 states have (on average 3.6061548026111283) internal successors, (11601), 3217 states have internal predecessors, (11601), 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) [2021-03-10 23:17:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 11601 transitions. [2021-03-10 23:17:38,911 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 11601 transitions. Word has length 29 [2021-03-10 23:17:38,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:38,911 INFO L480 AbstractCegarLoop]: Abstraction has 3218 states and 11601 transitions. [2021-03-10 23:17:38,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-03-10 23:17:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 11601 transitions. [2021-03-10 23:17:38,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-03-10 23:17:38,918 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:38,918 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:39,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-03-10 23:17:39,119 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:39,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:39,120 INFO L82 PathProgramCache]: Analyzing trace with hash -292340112, now seen corresponding path program 10 times [2021-03-10 23:17:39,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:39,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602821063] [2021-03-10 23:17:39,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:39,141 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:39,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602821063] [2021-03-10 23:17:39,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275172716] [2021-03-10 23:17:39,141 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:39,191 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 23:17:39,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:39,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-10 23:17:39,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:39,225 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:39,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:39,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-10 23:17:39,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000289534] [2021-03-10 23:17:39,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 23:17:39,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:39,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 23:17:39,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-10 23:17:39,227 INFO L87 Difference]: Start difference. First operand 3218 states and 11601 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-03-10 23:17:39,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:39,309 INFO L93 Difference]: Finished difference Result 3810 states and 13405 transitions. [2021-03-10 23:17:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 23:17:39,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) Word has length 29 [2021-03-10 23:17:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:39,323 INFO L225 Difference]: With dead ends: 3810 [2021-03-10 23:17:39,323 INFO L226 Difference]: Without dead ends: 3810 [2021-03-10 23:17:39,325 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 15.9ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-10 23:17:39,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2021-03-10 23:17:39,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3283. [2021-03-10 23:17:39,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 3.613345521023766) internal successors, (11859), 3282 states have internal predecessors, (11859), 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) [2021-03-10 23:17:39,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 11859 transitions. [2021-03-10 23:17:39,397 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 11859 transitions. Word has length 29 [2021-03-10 23:17:39,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:39,398 INFO L480 AbstractCegarLoop]: Abstraction has 3283 states and 11859 transitions. [2021-03-10 23:17:39,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-03-10 23:17:39,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 11859 transitions. [2021-03-10 23:17:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-03-10 23:17:39,409 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:39,409 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:39,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:39,627 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:39,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:39,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1098579396, now seen corresponding path program 11 times [2021-03-10 23:17:39,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:39,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517093863] [2021-03-10 23:17:39,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:39,668 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:39,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517093863] [2021-03-10 23:17:39,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111897196] [2021-03-10 23:17:39,668 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 23:17:39,705 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-10 23:17:39,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:39,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:39,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:39,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:39,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-03-10 23:17:39,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143860276] [2021-03-10 23:17:39,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 23:17:39,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:39,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 23:17:39,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-10 23:17:39,769 INFO L87 Difference]: Start difference. First operand 3283 states and 11859 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-03-10 23:17:39,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:39,845 INFO L93 Difference]: Finished difference Result 3694 states and 13063 transitions. [2021-03-10 23:17:39,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 23:17:39,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) Word has length 29 [2021-03-10 23:17:39,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:39,855 INFO L225 Difference]: With dead ends: 3694 [2021-03-10 23:17:39,855 INFO L226 Difference]: Without dead ends: 3694 [2021-03-10 23:17:39,855 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 23.6ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-03-10 23:17:39,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2021-03-10 23:17:39,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3265. [2021-03-10 23:17:39,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 3264 states have (on average 3.588235294117647) internal successors, (11712), 3264 states have internal predecessors, (11712), 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) [2021-03-10 23:17:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 11712 transitions. [2021-03-10 23:17:39,932 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 11712 transitions. Word has length 29 [2021-03-10 23:17:39,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:39,932 INFO L480 AbstractCegarLoop]: Abstraction has 3265 states and 11712 transitions. [2021-03-10 23:17:39,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2021-03-10 23:17:39,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 11712 transitions. [2021-03-10 23:17:39,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-10 23:17:39,939 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:39,939 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:40,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:40,154 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:40,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:40,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1216126240, now seen corresponding path program 12 times [2021-03-10 23:17:40,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:40,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519490732] [2021-03-10 23:17:40,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:40,184 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:40,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519490732] [2021-03-10 23:17:40,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969880051] [2021-03-10 23:17:40,185 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 23:17:40,228 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-03-10 23:17:40,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:40,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-10 23:17:40,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:40,263 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:40,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:40,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-03-10 23:17:40,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611915242] [2021-03-10 23:17:40,264 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 23:17:40,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:40,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 23:17:40,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-10 23:17:40,264 INFO L87 Difference]: Start difference. First operand 3265 states and 11712 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-03-10 23:17:40,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:40,345 INFO L93 Difference]: Finished difference Result 6483 states and 22245 transitions. [2021-03-10 23:17:40,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-10 23:17:40,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 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) Word has length 31 [2021-03-10 23:17:40,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:40,361 INFO L225 Difference]: With dead ends: 6483 [2021-03-10 23:17:40,361 INFO L226 Difference]: Without dead ends: 6483 [2021-03-10 23:17:40,362 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 26.8ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-03-10 23:17:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6483 states. [2021-03-10 23:17:40,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6483 to 5087. [2021-03-10 23:17:40,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5087 states, 5086 states have (on average 3.5876917027133306) internal successors, (18247), 5086 states have internal predecessors, (18247), 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) [2021-03-10 23:17:40,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5087 states to 5087 states and 18247 transitions. [2021-03-10 23:17:40,505 INFO L78 Accepts]: Start accepts. Automaton has 5087 states and 18247 transitions. Word has length 31 [2021-03-10 23:17:40,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:40,506 INFO L480 AbstractCegarLoop]: Abstraction has 5087 states and 18247 transitions. [2021-03-10 23:17:40,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-03-10 23:17:40,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5087 states and 18247 transitions. [2021-03-10 23:17:40,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-10 23:17:40,516 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:40,516 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:40,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2021-03-10 23:17:40,731 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:40,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:40,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2134533188, now seen corresponding path program 13 times [2021-03-10 23:17:40,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:40,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138127832] [2021-03-10 23:17:40,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:40,754 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:40,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138127832] [2021-03-10 23:17:40,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580433203] [2021-03-10 23:17:40,754 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:40,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-10 23:17:40,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:40,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-10 23:17:40,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:40,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-03-10 23:17:40,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887001704] [2021-03-10 23:17:40,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-10 23:17:40,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:40,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-10 23:17:40,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-10 23:17:40,830 INFO L87 Difference]: Start difference. First operand 5087 states and 18247 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2021-03-10 23:17:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:41,348 INFO L93 Difference]: Finished difference Result 8806 states and 29381 transitions. [2021-03-10 23:17:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 23:17:41,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) Word has length 31 [2021-03-10 23:17:41,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:41,370 INFO L225 Difference]: With dead ends: 8806 [2021-03-10 23:17:41,371 INFO L226 Difference]: Without dead ends: 8704 [2021-03-10 23:17:41,371 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 261.2ms TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2021-03-10 23:17:41,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2021-03-10 23:17:41,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 5354. [2021-03-10 23:17:41,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 3.6069493741827015) internal successors, (19308), 5353 states have internal predecessors, (19308), 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) [2021-03-10 23:17:41,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 19308 transitions. [2021-03-10 23:17:41,537 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 19308 transitions. Word has length 31 [2021-03-10 23:17:41,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:41,537 INFO L480 AbstractCegarLoop]: Abstraction has 5354 states and 19308 transitions. [2021-03-10 23:17:41,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2021-03-10 23:17:41,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 19308 transitions. [2021-03-10 23:17:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:17:41,548 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:41,548 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:41,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:41,763 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:41,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:41,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1395617240, now seen corresponding path program 14 times [2021-03-10 23:17:41,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:41,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150429215] [2021-03-10 23:17:41,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:42,141 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 41 [2021-03-10 23:17:42,310 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 44 [2021-03-10 23:17:42,450 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 43 [2021-03-10 23:17:42,600 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 30 [2021-03-10 23:17:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:42,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150429215] [2021-03-10 23:17:42,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325490544] [2021-03-10 23:17:42,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:42,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 23:17:42,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:42,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-10 23:17:42,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:43,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,025 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,030 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,040 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,045 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,051 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,063 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,070 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,076 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,082 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,088 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,094 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,099 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,105 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,111 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,117 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:17:43,122 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:43,416 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-03-10 23:17:43,416 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:43,420 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-03-10 23:17:43,420 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 1 variables, input treesize:1249, output treesize:1233 [2021-03-10 23:17:43,777 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-03-10 23:17:43,957 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_19, v_C_14, v_prenex_6, v_prenex_9, v_prenex_10, v_prenex_43, v_prenex_31, v_prenex_40, v_prenex_25, v_prenex_13, v_prenex_46, v_prenex_34, v_prenex_22, v_prenex_28, v_prenex_16, v_prenex_37], 3=[v_prenex_8, v_prenex_32, v_prenex_30, v_prenex_14, v_prenex_36, v_prenex_35, v_prenex_12, v_prenex_33, v_prenex_11, v_prenex_18, v_prenex_17, v_prenex_39, v_prenex_38, v_prenex_15, v_prenex_4, v_prenex_5, v_prenex_7, A, B, v_prenex_21, v_prenex_42, v_prenex_20, v_prenex_41, v_prenex_47, v_prenex_24, v_prenex_23, v_prenex_45, v_prenex_44, v_prenex_29, v_prenex_27, v_prenex_48, v_prenex_26]} [2021-03-10 23:17:43,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:43,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:43,980 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:44,422 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-03-10 23:17:44,423 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:44,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:44,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:44,447 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:44,862 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2021-03-10 23:17:44,863 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:44,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:44,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:44,885 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:45,307 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2021-03-10 23:17:45,307 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:45,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:45,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:45,329 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:45,734 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2021-03-10 23:17:45,734 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:45,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:45,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:45,756 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:46,189 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2021-03-10 23:17:46,189 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:46,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:46,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:46,210 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:46,616 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2021-03-10 23:17:46,616 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:46,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:46,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:46,637 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:47,036 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2021-03-10 23:17:47,036 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:47,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:47,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:47,057 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:47,477 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2021-03-10 23:17:47,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:47,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:47,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:47,498 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:47,894 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2021-03-10 23:17:47,895 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:47,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:47,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:47,916 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:48,309 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2021-03-10 23:17:48,309 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:48,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:48,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:48,330 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:48,738 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2021-03-10 23:17:48,738 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:48,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:48,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:48,761 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:49,154 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2021-03-10 23:17:49,155 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:49,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:49,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:49,179 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:49,567 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2021-03-10 23:17:49,568 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:49,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:49,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:49,590 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:49,978 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 354 [2021-03-10 23:17:49,978 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:49,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:49,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:49,999 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:50,383 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 351 [2021-03-10 23:17:50,383 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:50,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:50,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:17:50,404 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:50,792 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 348 [2021-03-10 23:17:50,793 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:50,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:50,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:50,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-03-10 23:17:50,812 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:51,201 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2021-03-10 23:17:51,201 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:51,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:51,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:51,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-03-10 23:17:51,217 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:51,596 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2021-03-10 23:17:51,596 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:51,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:51,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:51,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-03-10 23:17:51,612 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:51,962 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 333 [2021-03-10 23:17:51,963 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:51,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:51,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:51,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-03-10 23:17:51,983 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:52,325 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 328 [2021-03-10 23:17:52,325 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:52,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:52,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:52,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39 [2021-03-10 23:17:52,344 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:52,686 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2021-03-10 23:17:52,686 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:52,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:52,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:52,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2021-03-10 23:17:52,704 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:53,042 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2021-03-10 23:17:53,042 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:53,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:53,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:53,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39 [2021-03-10 23:17:53,064 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:53,413 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2021-03-10 23:17:53,413 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:53,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:53,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:53,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 41 [2021-03-10 23:17:53,429 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:54,085 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 294 [2021-03-10 23:17:54,086 INFO L628 ElimStorePlain]: treesize reduction 7, result has 99.4 percent of original size [2021-03-10 23:17:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:54,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:54,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 33 [2021-03-10 23:17:54,103 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:54,657 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 242 [2021-03-10 23:17:54,658 INFO L628 ElimStorePlain]: treesize reduction 171, result has 84.7 percent of original size [2021-03-10 23:17:54,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:54,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:54,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39 [2021-03-10 23:17:54,671 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:54,925 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2021-03-10 23:17:54,925 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:54,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:54,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:54,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 33 [2021-03-10 23:17:54,939 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:55,181 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 115 [2021-03-10 23:17:55,181 INFO L628 ElimStorePlain]: treesize reduction 432, result has 51.5 percent of original size [2021-03-10 23:17:55,182 INFO L518 ElimStorePlain]: Eliminatee v_prenex_39 vanished before elimination [2021-03-10 23:17:55,182 INFO L518 ElimStorePlain]: Eliminatee v_prenex_38 vanished before elimination [2021-03-10 23:17:55,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:55,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:55,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2021-03-10 23:17:55,200 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:55,337 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 76 [2021-03-10 23:17:55,337 INFO L628 ElimStorePlain]: treesize reduction 110, result has 73.5 percent of original size [2021-03-10 23:17:55,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:55,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:55,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-03-10 23:17:55,345 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:55,402 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:55,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:55,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:17:55,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 39 [2021-03-10 23:17:55,415 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:55,477 INFO L628 ElimStorePlain]: treesize reduction 140, result has 43.3 percent of original size [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_7 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_21 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_42 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_20 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_41 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_47 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_24 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_23 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_45 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_44 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_29 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_27 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_48 vanished before elimination [2021-03-10 23:17:55,478 INFO L518 ElimStorePlain]: Eliminatee v_prenex_26 vanished before elimination [2021-03-10 23:17:55,479 INFO L550 ElimStorePlain]: Start of recursive call 1: 48 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:17:55,480 INFO L247 ElimStorePlain]: Needed 31 recursive calls to eliminate 48 variables, input treesize:1345, output treesize:107 [2021-03-10 23:17:55,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-03-10 23:17:55,715 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:55,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-03-10 23:17:55,720 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:55,730 INFO L628 ElimStorePlain]: treesize reduction 93, result has 5.1 percent of original size [2021-03-10 23:17:55,731 INFO L518 ElimStorePlain]: Eliminatee C vanished before elimination [2021-03-10 23:17:55,731 INFO L518 ElimStorePlain]: Eliminatee v_prenex_51 vanished before elimination [2021-03-10 23:17:55,731 INFO L518 ElimStorePlain]: Eliminatee v_prenex_49 vanished before elimination [2021-03-10 23:17:55,731 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:17:55,731 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:128, output treesize:5 [2021-03-10 23:17:55,736 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:55,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:17:55,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-03-10 23:17:55,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778350468] [2021-03-10 23:17:55,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 23:17:55,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:17:55,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 23:17:55,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2021-03-10 23:17:55,739 INFO L87 Difference]: Start difference. First operand 5354 states and 19308 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:17:56,095 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-03-10 23:17:56,921 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-03-10 23:17:57,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:17:57,389 INFO L93 Difference]: Finished difference Result 8320 states and 29218 transitions. [2021-03-10 23:17:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-10 23:17:57,390 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) Word has length 33 [2021-03-10 23:17:57,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:17:57,411 INFO L225 Difference]: With dead ends: 8320 [2021-03-10 23:17:57,411 INFO L226 Difference]: Without dead ends: 8229 [2021-03-10 23:17:57,412 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2436.1ms TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-03-10 23:17:57,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2021-03-10 23:17:57,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 5803. [2021-03-10 23:17:57,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5803 states, 5802 states have (on average 3.5910031023784903) internal successors, (20835), 5802 states have internal predecessors, (20835), 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) [2021-03-10 23:17:57,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 20835 transitions. [2021-03-10 23:17:57,562 INFO L78 Accepts]: Start accepts. Automaton has 5803 states and 20835 transitions. Word has length 33 [2021-03-10 23:17:57,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:17:57,562 INFO L480 AbstractCegarLoop]: Abstraction has 5803 states and 20835 transitions. [2021-03-10 23:17:57,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:17:57,563 INFO L276 IsEmpty]: Start isEmpty. Operand 5803 states and 20835 transitions. [2021-03-10 23:17:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:17:57,574 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:17:57,574 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:17:57,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-03-10 23:17:57,787 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:17:57,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:17:57,787 INFO L82 PathProgramCache]: Analyzing trace with hash -199304798, now seen corresponding path program 15 times [2021-03-10 23:17:57,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:17:57,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110715735] [2021-03-10 23:17:57,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:17:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:17:58,098 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 39 [2021-03-10 23:17:58,229 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 44 [2021-03-10 23:17:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:17:58,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110715735] [2021-03-10 23:17:58,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872948011] [2021-03-10 23:17:58,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:17:58,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-03-10 23:17:58,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:17:58,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-03-10 23:17:58,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:17:58,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,735 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,741 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,747 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,754 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,760 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,767 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,773 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,779 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,786 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,793 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,800 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,806 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,815 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,821 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,828 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:58,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:17:58,835 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 23:17:59,210 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-03-10 23:17:59,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:17:59,216 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-03-10 23:17:59,216 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 1 variables, input treesize:1153, output treesize:1137 [2021-03-10 23:17:59,591 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-03-10 23:17:59,968 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-03-10 23:18:00,587 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-03-10 23:18:01,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:18:01,753 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:01,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-03-10 23:18:01,778 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:04,170 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 428 DAG size of output: 416 [2021-03-10 23:18:04,171 INFO L628 ElimStorePlain]: treesize reduction 300, result has 87.0 percent of original size [2021-03-10 23:18:04,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-03-10 23:18:04,211 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:04,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 29 [2021-03-10 23:18:04,244 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:05,350 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 416 [2021-03-10 23:18:05,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:05,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-03-10 23:18:05,374 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:06,470 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 413 [2021-03-10 23:18:06,471 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:06,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2021-03-10 23:18:06,498 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:06,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:18:06,518 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:07,636 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 414 [2021-03-10 23:18:07,637 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:07,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 25 [2021-03-10 23:18:07,663 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:07,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-03-10 23:18:07,686 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:08,794 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 411 [2021-03-10 23:18:08,795 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:08,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:18:08,821 INFO L550 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:08,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 29 [2021-03-10 23:18:08,844 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:09,957 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 413 [2021-03-10 23:18:09,957 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:10,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:10,003 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:10,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:18:10,025 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:11,077 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 408 [2021-03-10 23:18:11,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:11,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 25 [2021-03-10 23:18:11,109 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:11,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-03-10 23:18:11,132 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:12,161 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 403 [2021-03-10 23:18:12,162 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:12,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:12,186 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:12,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:18:12,209 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:13,253 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 398 [2021-03-10 23:18:13,254 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:13,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:18:13,278 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:13,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-03-10 23:18:13,299 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:14,359 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 394 [2021-03-10 23:18:14,360 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:14,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:18:14,384 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:14,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-03-10 23:18:14,406 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:15,432 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 391 [2021-03-10 23:18:15,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:15,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-03-10 23:18:15,456 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:15,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:18:15,475 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:16,474 WARN L205 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2021-03-10 23:18:16,475 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:16,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:18:16,516 INFO L550 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:16,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 29 [2021-03-10 23:18:16,539 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:17,531 WARN L205 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2021-03-10 23:18:17,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:17,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-03-10 23:18:17,558 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:17,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 33 [2021-03-10 23:18:17,578 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:19,158 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 379 DAG size of output: 329 [2021-03-10 23:18:19,159 INFO L628 ElimStorePlain]: treesize reduction 302, result has 82.1 percent of original size [2021-03-10 23:18:19,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 25 [2021-03-10 23:18:19,181 INFO L550 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:19,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-03-10 23:18:19,198 INFO L550 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:19,918 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2021-03-10 23:18:19,919 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:19,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 28 [2021-03-10 23:18:19,936 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:20,656 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2021-03-10 23:18:20,656 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:20,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:20,677 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:20,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:18:20,696 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:21,381 WARN L205 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2021-03-10 23:18:21,381 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:21,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 28 [2021-03-10 23:18:21,402 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:22,223 WARN L205 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 231 [2021-03-10 23:18:22,224 INFO L628 ElimStorePlain]: treesize reduction 506, result has 60.8 percent of original size [2021-03-10 23:18:22,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:18:22,241 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:22,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-03-10 23:18:22,255 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:22,552 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-03-10 23:18:22,552 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:22,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2021-03-10 23:18:22,568 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:22,860 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2021-03-10 23:18:22,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:22,861 INFO L518 ElimStorePlain]: Eliminatee v_prenex_79 vanished before elimination [2021-03-10 23:18:22,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 28 [2021-03-10 23:18:22,874 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:23,162 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2021-03-10 23:18:23,163 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:23,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:18:23,176 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:23,469 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2021-03-10 23:18:23,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:23,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2021-03-10 23:18:23,481 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:23,897 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 185 [2021-03-10 23:18:23,898 INFO L628 ElimStorePlain]: treesize reduction 147, result has 80.0 percent of original size [2021-03-10 23:18:23,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-03-10 23:18:23,908 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:24,069 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 66 [2021-03-10 23:18:24,070 INFO L628 ElimStorePlain]: treesize reduction 334, result has 39.6 percent of original size [2021-03-10 23:18:24,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:18:24,076 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:24,141 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:24,142 INFO L518 ElimStorePlain]: Eliminatee v_prenex_83 vanished before elimination [2021-03-10 23:18:24,142 INFO L518 ElimStorePlain]: Eliminatee v_prenex_61 vanished before elimination [2021-03-10 23:18:24,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-03-10 23:18:24,149 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:24,275 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-03-10 23:18:24,275 INFO L628 ElimStorePlain]: treesize reduction 56, result has 75.3 percent of original size [2021-03-10 23:18:24,275 INFO L518 ElimStorePlain]: Eliminatee v_prenex_82 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_81 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_80 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_87 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_65 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_86 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_64 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_85 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_63 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_84 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_62 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_69 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_68 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_67 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_89 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_66 vanished before elimination [2021-03-10 23:18:24,276 INFO L518 ElimStorePlain]: Eliminatee v_prenex_88 vanished before elimination [2021-03-10 23:18:24,279 INFO L550 ElimStorePlain]: Start of recursive call 1: 48 dim-1 vars, End of recursive call: and 5 xjuncts. [2021-03-10 23:18:24,279 INFO L247 ElimStorePlain]: Needed 43 recursive calls to eliminate 48 variables, input treesize:2305, output treesize:133 [2021-03-10 23:18:24,635 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-03-10 23:18:24,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 29 [2021-03-10 23:18:24,654 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:24,785 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2021-03-10 23:18:24,785 INFO L628 ElimStorePlain]: treesize reduction 123, result has 56.7 percent of original size [2021-03-10 23:18:24,808 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-03-10 23:18:24,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 24 [2021-03-10 23:18:24,813 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:24,821 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-03-10 23:18:24,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 1 [2021-03-10 23:18:24,822 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:24,871 INFO L628 ElimStorePlain]: treesize reduction 78, result has 36.1 percent of original size [2021-03-10 23:18:24,871 INFO L518 ElimStorePlain]: Eliminatee v_prenex_97 vanished before elimination [2021-03-10 23:18:24,871 INFO L518 ElimStorePlain]: Eliminatee v_prenex_100 vanished before elimination [2021-03-10 23:18:24,871 INFO L518 ElimStorePlain]: Eliminatee v_prenex_99 vanished before elimination [2021-03-10 23:18:24,874 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 5 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-10 23:18:24,874 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:301, output treesize:50 [2021-03-10 23:18:24,940 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:18:24,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:18:24,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-03-10 23:18:24,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466516116] [2021-03-10 23:18:24,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-03-10 23:18:24,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:18:24,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-03-10 23:18:24,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2021-03-10 23:18:24,941 INFO L87 Difference]: Start difference. First operand 5803 states and 20835 transitions. Second operand has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 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) [2021-03-10 23:18:25,585 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-03-10 23:18:25,941 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2021-03-10 23:18:26,600 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-03-10 23:18:27,259 WARN L205 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-03-10 23:18:27,439 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-03-10 23:18:27,781 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2021-03-10 23:18:28,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:18:28,024 INFO L93 Difference]: Finished difference Result 8411 states and 29291 transitions. [2021-03-10 23:18:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 23:18:28,025 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 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) Word has length 33 [2021-03-10 23:18:28,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:18:28,045 INFO L225 Difference]: With dead ends: 8411 [2021-03-10 23:18:28,045 INFO L226 Difference]: Without dead ends: 8158 [2021-03-10 23:18:28,046 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 4433.1ms TimeCoverageRelationStatistics Valid=285, Invalid=1607, Unknown=0, NotChecked=0, Total=1892 [2021-03-10 23:18:28,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2021-03-10 23:18:28,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 5828. [2021-03-10 23:18:28,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5828 states, 5827 states have (on average 3.591384932212116) internal successors, (20927), 5827 states have internal predecessors, (20927), 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) [2021-03-10 23:18:28,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5828 states to 5828 states and 20927 transitions. [2021-03-10 23:18:28,162 INFO L78 Accepts]: Start accepts. Automaton has 5828 states and 20927 transitions. Word has length 33 [2021-03-10 23:18:28,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:18:28,162 INFO L480 AbstractCegarLoop]: Abstraction has 5828 states and 20927 transitions. [2021-03-10 23:18:28,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 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) [2021-03-10 23:18:28,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5828 states and 20927 transitions. [2021-03-10 23:18:28,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:18:28,173 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:18:28,173 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:18:28,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:18:28,391 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:18:28,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:18:28,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1389073446, now seen corresponding path program 16 times [2021-03-10 23:18:28,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:18:28,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843420768] [2021-03-10 23:18:28,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:18:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:18:28,827 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2021-03-10 23:18:28,992 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 44 [2021-03-10 23:18:29,122 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2021-03-10 23:18:29,285 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 41 [2021-03-10 23:18:29,419 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:18:29,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843420768] [2021-03-10 23:18:29,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953731540] [2021-03-10 23:18:29,420 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:18:29,445 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 23:18:29,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:18:29,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-10 23:18:29,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:18:29,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:18:29,610 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:29,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:18:29,616 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:29,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:18:29,621 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:29,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:18:29,626 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:29,708 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:29,710 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:18:29,710 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:277, output treesize:273 [2021-03-10 23:18:29,989 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-03-10 23:18:30,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:18:30,388 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:30,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:18:30,404 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:30,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:18:30,421 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:30,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:18:30,433 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:30,875 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-03-10 23:18:30,876 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:30,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:18:30,889 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:30,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:18:30,903 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:30,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:18:30,917 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:30,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:18:30,928 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:31,389 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-03-10 23:18:31,390 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:31,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:18:31,403 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:31,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:18:31,417 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:31,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:18:31,431 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:31,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:18:31,442 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:31,851 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-03-10 23:18:31,852 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:31,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-03-10 23:18:31,867 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:31,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-03-10 23:18:31,881 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:31,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-03-10 23:18:31,898 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:31,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-03-10 23:18:31,909 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:32,274 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-03-10 23:18:32,274 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:32,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 31 [2021-03-10 23:18:32,289 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:32,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-03-10 23:18:32,303 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:32,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2021-03-10 23:18:32,318 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:32,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2021-03-10 23:18:32,330 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:33,001 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 128 [2021-03-10 23:18:33,002 INFO L628 ElimStorePlain]: treesize reduction 63, result has 92.4 percent of original size [2021-03-10 23:18:33,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:33,014 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:33,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:33,026 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:33,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:33,038 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:33,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:33,048 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:33,325 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-03-10 23:18:33,326 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:33,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:18:33,339 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:33,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:18:33,353 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:33,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:18:33,367 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:33,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:18:33,379 INFO L550 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:33,681 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-03-10 23:18:33,681 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:33,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-03-10 23:18:33,698 INFO L550 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:33,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-03-10 23:18:33,714 INFO L550 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:33,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-03-10 23:18:33,730 INFO L550 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:33,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-03-10 23:18:33,741 INFO L550 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:34,223 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 132 [2021-03-10 23:18:34,224 INFO L628 ElimStorePlain]: treesize reduction 20, result has 96.8 percent of original size [2021-03-10 23:18:34,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:18:34,237 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:34,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:18:34,249 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:34,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:18:34,262 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:34,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:18:34,273 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:34,498 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-03-10 23:18:34,498 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:34,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:18:34,514 INFO L550 ElimStorePlain]: Start of recursive call 38: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:34,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:18:34,530 INFO L550 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:34,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:18:34,546 INFO L550 ElimStorePlain]: Start of recursive call 40: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:34,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:18:34,560 INFO L550 ElimStorePlain]: Start of recursive call 41: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:34,778 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-03-10 23:18:34,779 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:34,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:18:34,795 INFO L550 ElimStorePlain]: Start of recursive call 42: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:34,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2021-03-10 23:18:34,810 INFO L550 ElimStorePlain]: Start of recursive call 43: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:34,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2021-03-10 23:18:34,825 INFO L550 ElimStorePlain]: Start of recursive call 44: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:34,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:18:34,840 INFO L550 ElimStorePlain]: Start of recursive call 45: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:18:35,022 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-03-10 23:18:35,022 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:35,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:35,040 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:35,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:35,053 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:35,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:35,067 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:35,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:18:35,080 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:35,244 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-03-10 23:18:35,245 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:35,251 INFO L550 ElimStorePlain]: Start of recursive call 1: 12 dim-1 vars, End of recursive call: and 9 xjuncts. [2021-03-10 23:18:35,251 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 12 variables, input treesize:1185, output treesize:212 [2021-03-10 23:18:35,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-03-10 23:18:35,604 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:35,620 INFO L628 ElimStorePlain]: treesize reduction 108, result has 4.4 percent of original size [2021-03-10 23:18:35,620 INFO L518 ElimStorePlain]: Eliminatee v_prenex_110 vanished before elimination [2021-03-10 23:18:35,620 INFO L518 ElimStorePlain]: Eliminatee v_prenex_111 vanished before elimination [2021-03-10 23:18:35,620 INFO L518 ElimStorePlain]: Eliminatee v_prenex_112 vanished before elimination [2021-03-10 23:18:35,621 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:18:35,621 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:128, output treesize:5 [2021-03-10 23:18:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:18:35,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:18:35,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-03-10 23:18:35,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600753904] [2021-03-10 23:18:35,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 23:18:35,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:18:35,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 23:18:35,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-03-10 23:18:35,629 INFO L87 Difference]: Start difference. First operand 5828 states and 20927 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:18:35,795 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 40 [2021-03-10 23:18:35,955 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 48 [2021-03-10 23:18:36,244 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2021-03-10 23:18:36,706 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2021-03-10 23:18:37,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:18:37,277 INFO L93 Difference]: Finished difference Result 10027 states and 34871 transitions. [2021-03-10 23:18:37,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 23:18:37,278 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) Word has length 33 [2021-03-10 23:18:37,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:18:37,301 INFO L225 Difference]: With dead ends: 10027 [2021-03-10 23:18:37,301 INFO L226 Difference]: Without dead ends: 9878 [2021-03-10 23:18:37,301 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2295.1ms TimeCoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2021-03-10 23:18:37,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9878 states. [2021-03-10 23:18:37,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9878 to 5995. [2021-03-10 23:18:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5995 states, 5994 states have (on average 3.5820820820820822) internal successors, (21471), 5994 states have internal predecessors, (21471), 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) [2021-03-10 23:18:37,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5995 states to 5995 states and 21471 transitions. [2021-03-10 23:18:37,433 INFO L78 Accepts]: Start accepts. Automaton has 5995 states and 21471 transitions. Word has length 33 [2021-03-10 23:18:37,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:18:37,433 INFO L480 AbstractCegarLoop]: Abstraction has 5995 states and 21471 transitions. [2021-03-10 23:18:37,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:18:37,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5995 states and 21471 transitions. [2021-03-10 23:18:37,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:18:37,444 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:18:37,444 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:18:37,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable315 [2021-03-10 23:18:37,659 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:18:37,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:18:37,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1709581408, now seen corresponding path program 17 times [2021-03-10 23:18:37,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:18:37,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562470758] [2021-03-10 23:18:37,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:18:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:18:38,282 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 46 [2021-03-10 23:18:38,608 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 48 [2021-03-10 23:18:38,993 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:18:38,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562470758] [2021-03-10 23:18:38,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162737277] [2021-03-10 23:18:38,993 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:18:39,017 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-10 23:18:39,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:18:39,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-10 23:18:39,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:18:39,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:18:39,204 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:39,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:18:39,211 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:39,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:18:39,218 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:39,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:18:39,224 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:39,317 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:39,319 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:18:39,319 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:249, output treesize:245 [2021-03-10 23:18:39,732 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-03-10 23:18:40,153 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-03-10 23:18:40,600 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-03-10 23:18:41,438 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_118, v_prenex_119, v_C_20, v_prenex_131, v_prenex_122, v_prenex_125, v_prenex_115, v_prenex_128], 3=[v_prenex_130, v_prenex_120, v_prenex_132, v_prenex_121, v_prenex_133, v_prenex_123, v_prenex_113, v_prenex_124, v_prenex_114, v_prenex_126, v_prenex_116, v_prenex_127, v_prenex_117, v_prenex_129, A, B]} [2021-03-10 23:18:41,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:41,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:41,458 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:41,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:41,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:41,477 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:41,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:41,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:41,499 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:41,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:41,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:41,517 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:43,498 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 250 DAG size of output: 236 [2021-03-10 23:18:43,499 INFO L628 ElimStorePlain]: treesize reduction 662, result has 75.0 percent of original size [2021-03-10 23:18:43,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:43,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:43,519 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:43,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:43,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:43,540 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:44,478 WARN L205 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 233 [2021-03-10 23:18:44,479 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:44,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:44,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:44,498 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:44,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:44,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:44,515 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:45,420 WARN L205 SmtUtils]: Spent 904.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-03-10 23:18:45,422 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:45,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:45,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:45,440 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:45,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:45,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:45,458 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:45,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:45,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:45,477 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:45,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:45,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:45,494 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:46,448 WARN L205 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-03-10 23:18:46,448 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:46,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:46,472 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:46,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:46,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:46,505 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:46,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:46,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:46,530 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:46,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:46,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:46,552 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:47,443 WARN L205 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-03-10 23:18:47,444 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:47,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:47,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:47,464 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:47,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:47,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:47,484 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:47,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:47,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:47,507 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:47,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:47,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:47,527 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:48,407 WARN L205 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-03-10 23:18:48,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:48,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:48,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:48,443 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:48,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:48,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:48,463 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:49,340 WARN L205 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-03-10 23:18:49,340 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:49,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:49,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:49,365 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:49,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:49,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:49,385 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:49,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:49,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:18:49,406 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:49,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:49,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:18:49,423 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:50,272 WARN L205 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-03-10 23:18:50,273 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:50,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:50,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:50,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-03-10 23:18:50,294 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:50,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:50,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:50,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 41 [2021-03-10 23:18:50,314 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:50,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:50,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:50,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:18:50,336 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:50,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:50,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:50,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-03-10 23:18:50,352 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:51,179 WARN L205 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-03-10 23:18:51,179 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:51,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:51,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:51,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39 [2021-03-10 23:18:51,201 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:51,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:51,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:51,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-03-10 23:18:51,218 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:52,011 WARN L205 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-03-10 23:18:52,012 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:52,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:52,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:52,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-03-10 23:18:52,033 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:52,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:52,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:52,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-03-10 23:18:52,052 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:52,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:52,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:52,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:18:52,074 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:52,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:52,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:52,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2021-03-10 23:18:52,090 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:53,489 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 203 DAG size of output: 201 [2021-03-10 23:18:53,490 INFO L628 ElimStorePlain]: treesize reduction 110, result has 93.9 percent of original size [2021-03-10 23:18:53,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:53,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 31 [2021-03-10 23:18:53,509 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:53,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:53,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:53,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2021-03-10 23:18:53,524 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:54,710 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 190 DAG size of output: 165 [2021-03-10 23:18:54,711 INFO L628 ElimStorePlain]: treesize reduction 171, result has 89.5 percent of original size [2021-03-10 23:18:54,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:54,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:54,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 37 [2021-03-10 23:18:54,728 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:54,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:54,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:54,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2021-03-10 23:18:54,741 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:55,365 WARN L205 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 111 [2021-03-10 23:18:55,366 INFO L628 ElimStorePlain]: treesize reduction 674, result has 51.2 percent of original size [2021-03-10 23:18:55,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-03-10 23:18:55,386 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:55,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 41 [2021-03-10 23:18:55,397 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:55,630 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-03-10 23:18:55,631 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:55,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:18:55,645 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:55,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2021-03-10 23:18:55,655 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:55,860 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-03-10 23:18:55,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:55,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 39 [2021-03-10 23:18:55,874 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:55,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:55,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2021-03-10 23:18:55,884 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:56,181 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2021-03-10 23:18:56,182 INFO L628 ElimStorePlain]: treesize reduction 193, result has 64.1 percent of original size [2021-03-10 23:18:56,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:56,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:56,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2021-03-10 23:18:56,195 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:56,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:56,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:56,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2021-03-10 23:18:56,204 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:56,328 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-03-10 23:18:56,328 INFO L628 ElimStorePlain]: treesize reduction 118, result has 58.9 percent of original size [2021-03-10 23:18:56,328 INFO L518 ElimStorePlain]: Eliminatee v_prenex_126 vanished before elimination [2021-03-10 23:18:56,328 INFO L518 ElimStorePlain]: Eliminatee v_prenex_116 vanished before elimination [2021-03-10 23:18:56,328 INFO L518 ElimStorePlain]: Eliminatee v_prenex_127 vanished before elimination [2021-03-10 23:18:56,328 INFO L518 ElimStorePlain]: Eliminatee v_prenex_117 vanished before elimination [2021-03-10 23:18:56,329 INFO L518 ElimStorePlain]: Eliminatee v_prenex_129 vanished before elimination [2021-03-10 23:18:56,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:56,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:56,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 41 [2021-03-10 23:18:56,336 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:56,380 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:18:56,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:56,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:18:56,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2021-03-10 23:18:56,389 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:56,485 INFO L628 ElimStorePlain]: treesize reduction 36, result has 68.4 percent of original size [2021-03-10 23:18:56,487 INFO L550 ElimStorePlain]: Start of recursive call 1: 24 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-03-10 23:18:56,487 INFO L247 ElimStorePlain]: Needed 51 recursive calls to eliminate 24 variables, input treesize:2657, output treesize:78 [2021-03-10 23:18:56,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-03-10 23:18:56,599 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:56,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:18:56,605 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:18:56,619 INFO L628 ElimStorePlain]: treesize reduction 61, result has 7.6 percent of original size [2021-03-10 23:18:56,619 INFO L518 ElimStorePlain]: Eliminatee v_prenex_134 vanished before elimination [2021-03-10 23:18:56,619 INFO L518 ElimStorePlain]: Eliminatee v_prenex_135 vanished before elimination [2021-03-10 23:18:56,620 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:18:56,620 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:108, output treesize:5 [2021-03-10 23:18:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:18:56,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:18:56,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2021-03-10 23:18:56,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030259327] [2021-03-10 23:18:56,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 23:18:56,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:18:56,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 23:18:56,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2021-03-10 23:18:56,631 INFO L87 Difference]: Start difference. First operand 5995 states and 21471 transitions. Second operand has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 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) [2021-03-10 23:18:56,876 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-03-10 23:18:57,107 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-03-10 23:18:57,567 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2021-03-10 23:18:58,376 WARN L205 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-03-10 23:18:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:18:58,965 INFO L93 Difference]: Finished difference Result 8627 states and 29955 transitions. [2021-03-10 23:18:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 23:18:58,966 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 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) Word has length 33 [2021-03-10 23:18:58,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:18:58,983 INFO L225 Difference]: With dead ends: 8627 [2021-03-10 23:18:58,983 INFO L226 Difference]: Without dead ends: 8310 [2021-03-10 23:18:58,983 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 3675.4ms TimeCoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2021-03-10 23:18:58,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2021-03-10 23:18:59,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 6027. [2021-03-10 23:18:59,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6027 states, 6026 states have (on average 3.576501825423166) internal successors, (21552), 6026 states have internal predecessors, (21552), 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) [2021-03-10 23:18:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6027 states to 6027 states and 21552 transitions. [2021-03-10 23:18:59,087 INFO L78 Accepts]: Start accepts. Automaton has 6027 states and 21552 transitions. Word has length 33 [2021-03-10 23:18:59,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:18:59,087 INFO L480 AbstractCegarLoop]: Abstraction has 6027 states and 21552 transitions. [2021-03-10 23:18:59,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 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) [2021-03-10 23:18:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand 6027 states and 21552 transitions. [2021-03-10 23:18:59,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:18:59,097 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:18:59,097 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:18:59,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:18:59,311 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:18:59,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:18:59,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1839447846, now seen corresponding path program 18 times [2021-03-10 23:18:59,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:18:59,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545839601] [2021-03-10 23:18:59,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:18:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:18:59,721 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 38 [2021-03-10 23:18:59,873 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 43 [2021-03-10 23:19:00,047 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 49 [2021-03-10 23:19:00,196 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 47 [2021-03-10 23:19:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:19:00,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545839601] [2021-03-10 23:19:00,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061420057] [2021-03-10 23:19:00,333 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:19:00,358 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-03-10 23:19:00,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:19:00,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-10 23:19:00,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:19:00,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:00,556 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:00,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:00,564 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:00,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:00,572 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:00,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:00,580 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:00,677 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:00,678 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:19:00,678 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:277, output treesize:273 [2021-03-10 23:19:00,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:00,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:00,865 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:01,000 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-03-10 23:19:01,001 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:01,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:01,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:01,022 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:01,164 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-03-10 23:19:01,164 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:01,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:01,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:01,177 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:01,304 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-03-10 23:19:01,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:01,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:01,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:01,316 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:01,430 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-03-10 23:19:01,430 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:01,432 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:19:01,432 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:309, output treesize:305 [2021-03-10 23:19:01,579 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-03-10 23:19:01,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:19:01,893 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:01,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:19:01,910 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:01,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:19:01,927 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:01,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:19:01,938 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:02,469 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-03-10 23:19:02,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:02,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-03-10 23:19:02,483 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:02,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2021-03-10 23:19:02,496 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:02,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-03-10 23:19:02,508 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:02,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-03-10 23:19:02,516 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:02,871 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 49 [2021-03-10 23:19:02,872 INFO L628 ElimStorePlain]: treesize reduction 623, result has 35.5 percent of original size [2021-03-10 23:19:02,872 INFO L518 ElimStorePlain]: Eliminatee v_prenex_140 vanished before elimination [2021-03-10 23:19:02,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:19:02,892 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:02,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:19:02,905 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:02,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:19:02,915 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:02,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:19:02,925 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:03,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:03,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-03-10 23:19:03,039 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:03,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2021-03-10 23:19:03,049 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:03,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-03-10 23:19:03,057 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:03,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-03-10 23:19:03,062 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:03,113 INFO L628 ElimStorePlain]: treesize reduction 97, result has 34.5 percent of original size [2021-03-10 23:19:03,113 INFO L518 ElimStorePlain]: Eliminatee v_prenex_143 vanished before elimination [2021-03-10 23:19:03,113 INFO L518 ElimStorePlain]: Eliminatee v_prenex_144 vanished before elimination [2021-03-10 23:19:03,113 INFO L518 ElimStorePlain]: Eliminatee v_prenex_139 vanished before elimination [2021-03-10 23:19:03,114 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-10 23:19:03,114 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:1169, output treesize:47 [2021-03-10 23:19:03,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-03-10 23:19:03,294 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:03,303 INFO L628 ElimStorePlain]: treesize reduction 41, result has 10.9 percent of original size [2021-03-10 23:19:03,304 INFO L518 ElimStorePlain]: Eliminatee v_prenex_145 vanished before elimination [2021-03-10 23:19:03,304 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:19:03,304 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:5 [2021-03-10 23:19:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:19:03,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:19:03,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-03-10 23:19:03,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689355869] [2021-03-10 23:19:03,313 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 23:19:03,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:19:03,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 23:19:03,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2021-03-10 23:19:03,314 INFO L87 Difference]: Start difference. First operand 6027 states and 21552 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:19:03,574 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2021-03-10 23:19:03,916 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2021-03-10 23:19:04,230 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 23:19:04,638 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2021-03-10 23:19:05,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:19:05,174 INFO L93 Difference]: Finished difference Result 8561 states and 29979 transitions. [2021-03-10 23:19:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 23:19:05,175 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) Word has length 33 [2021-03-10 23:19:05,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:19:05,195 INFO L225 Difference]: With dead ends: 8561 [2021-03-10 23:19:05,195 INFO L226 Difference]: Without dead ends: 8478 [2021-03-10 23:19:05,196 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 2518.7ms TimeCoverageRelationStatistics Valid=164, Invalid=766, Unknown=0, NotChecked=0, Total=930 [2021-03-10 23:19:05,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2021-03-10 23:19:05,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 6135. [2021-03-10 23:19:05,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6135 states, 6134 states have (on average 3.5758069775024452) internal successors, (21934), 6134 states have internal predecessors, (21934), 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) [2021-03-10 23:19:05,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 21934 transitions. [2021-03-10 23:19:05,321 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 21934 transitions. Word has length 33 [2021-03-10 23:19:05,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:19:05,321 INFO L480 AbstractCegarLoop]: Abstraction has 6135 states and 21934 transitions. [2021-03-10 23:19:05,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:19:05,321 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 21934 transitions. [2021-03-10 23:19:05,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:19:05,332 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:19:05,332 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:19:05,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable520 [2021-03-10 23:19:05,549 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:19:05,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:19:05,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1784385830, now seen corresponding path program 19 times [2021-03-10 23:19:05,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:19:05,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450794169] [2021-03-10 23:19:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:19:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:19:06,021 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2021-03-10 23:19:06,269 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 41 [2021-03-10 23:19:06,501 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 47 [2021-03-10 23:19:06,741 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 52 [2021-03-10 23:19:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:19:06,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450794169] [2021-03-10 23:19:06,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83315722] [2021-03-10 23:19:06,922 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:19:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:19:06,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-03-10 23:19:06,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:19:07,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:07,155 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:07,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:07,162 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:07,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:07,171 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:07,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:07,177 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:07,273 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:07,274 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:19:07,274 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:269, output treesize:265 [2021-03-10 23:19:07,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:07,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:07,428 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:07,541 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-03-10 23:19:07,541 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:07,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:07,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:07,553 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:07,662 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-03-10 23:19:07,662 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:07,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:07,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:07,673 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:07,779 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-03-10 23:19:07,780 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:07,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:07,792 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:07,894 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-03-10 23:19:07,895 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:07,896 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:19:07,896 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:301, output treesize:297 [2021-03-10 23:19:08,318 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-03-10 23:19:10,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:10,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:10,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 32 [2021-03-10 23:19:10,064 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:10,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:10,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:10,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-03-10 23:19:10,086 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:12,998 WARN L205 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 361 DAG size of output: 348 [2021-03-10 23:19:12,999 INFO L628 ElimStorePlain]: treesize reduction 325, result has 87.3 percent of original size [2021-03-10 23:19:13,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:13,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:13,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:19:13,022 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:14,427 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 341 [2021-03-10 23:19:14,428 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:14,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:14,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:14,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 26 [2021-03-10 23:19:14,450 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:16,173 WARN L205 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 333 DAG size of output: 286 [2021-03-10 23:19:16,175 INFO L628 ElimStorePlain]: treesize reduction 865, result has 60.2 percent of original size [2021-03-10 23:19:16,175 INFO L518 ElimStorePlain]: Eliminatee v_prenex_163 vanished before elimination [2021-03-10 23:19:16,175 INFO L518 ElimStorePlain]: Eliminatee v_prenex_164 vanished before elimination [2021-03-10 23:19:16,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:16,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:16,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-03-10 23:19:16,194 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:16,823 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2021-03-10 23:19:16,823 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:16,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:16,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:16,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-03-10 23:19:16,843 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:17,444 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2021-03-10 23:19:17,445 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:17,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:17,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:17,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-03-10 23:19:17,468 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:17,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:17,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:17,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:19:17,485 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:18,086 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-10 23:19:18,086 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:18,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:18,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:18,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2021-03-10 23:19:18,112 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:18,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:18,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:18,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2021-03-10 23:19:18,132 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:19,278 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 255 DAG size of output: 254 [2021-03-10 23:19:19,279 INFO L628 ElimStorePlain]: treesize reduction 51, result has 95.7 percent of original size [2021-03-10 23:19:19,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:19,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:19,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2021-03-10 23:19:19,300 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:19,865 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2021-03-10 23:19:19,866 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:19,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:19,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:19,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-03-10 23:19:19,885 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:20,418 WARN L205 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-03-10 23:19:20,419 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:20,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:20,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:20,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 41 [2021-03-10 23:19:20,438 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:20,973 WARN L205 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 84 [2021-03-10 23:19:20,974 INFO L628 ElimStorePlain]: treesize reduction 575, result has 45.4 percent of original size [2021-03-10 23:19:20,974 INFO L518 ElimStorePlain]: Eliminatee v_prenex_171 vanished before elimination [2021-03-10 23:19:20,974 INFO L518 ElimStorePlain]: Eliminatee v_prenex_172 vanished before elimination [2021-03-10 23:19:20,974 INFO L518 ElimStorePlain]: Eliminatee v_prenex_150 vanished before elimination [2021-03-10 23:19:20,974 INFO L518 ElimStorePlain]: Eliminatee v_prenex_151 vanished before elimination [2021-03-10 23:19:20,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:20,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:20,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:19:20,990 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:20,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:20,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:20,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-03-10 23:19:21,003 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:21,198 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-10 23:19:21,198 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:21,199 INFO L518 ElimStorePlain]: Eliminatee v_prenex_152 vanished before elimination [2021-03-10 23:19:21,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:21,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:21,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2021-03-10 23:19:21,216 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:21,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:21,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:21,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 39 [2021-03-10 23:19:21,227 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:21,383 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 38 [2021-03-10 23:19:21,384 INFO L628 ElimStorePlain]: treesize reduction 231, result has 37.7 percent of original size [2021-03-10 23:19:21,384 INFO L518 ElimStorePlain]: Eliminatee v_prenex_175 vanished before elimination [2021-03-10 23:19:21,384 INFO L518 ElimStorePlain]: Eliminatee v_prenex_153 vanished before elimination [2021-03-10 23:19:21,384 INFO L518 ElimStorePlain]: Eliminatee v_prenex_176 vanished before elimination [2021-03-10 23:19:21,384 INFO L518 ElimStorePlain]: Eliminatee v_prenex_154 vanished before elimination [2021-03-10 23:19:21,384 INFO L518 ElimStorePlain]: Eliminatee v_prenex_177 vanished before elimination [2021-03-10 23:19:21,384 INFO L518 ElimStorePlain]: Eliminatee v_prenex_155 vanished before elimination [2021-03-10 23:19:21,384 INFO L518 ElimStorePlain]: Eliminatee v_prenex_178 vanished before elimination [2021-03-10 23:19:21,384 INFO L518 ElimStorePlain]: Eliminatee v_prenex_156 vanished before elimination [2021-03-10 23:19:21,384 INFO L518 ElimStorePlain]: Eliminatee v_prenex_157 vanished before elimination [2021-03-10 23:19:21,384 INFO L518 ElimStorePlain]: Eliminatee v_prenex_158 vanished before elimination [2021-03-10 23:19:21,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:21,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:21,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2021-03-10 23:19:21,394 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:21,526 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2021-03-10 23:19:21,527 INFO L628 ElimStorePlain]: treesize reduction 36, result has 68.4 percent of original size [2021-03-10 23:19:21,527 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-03-10 23:19:21,527 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-03-10 23:19:21,528 INFO L550 ElimStorePlain]: Start of recursive call 1: 32 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-03-10 23:19:21,528 INFO L247 ElimStorePlain]: Needed 19 recursive calls to eliminate 32 variables, input treesize:2593, output treesize:78 [2021-03-10 23:19:21,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-03-10 23:19:21,671 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:21,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-03-10 23:19:21,678 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:21,696 INFO L628 ElimStorePlain]: treesize reduction 73, result has 6.4 percent of original size [2021-03-10 23:19:21,696 INFO L518 ElimStorePlain]: Eliminatee C vanished before elimination [2021-03-10 23:19:21,696 INFO L518 ElimStorePlain]: Eliminatee v_prenex_179 vanished before elimination [2021-03-10 23:19:21,697 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:19:21,697 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:108, output treesize:5 [2021-03-10 23:19:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:19:21,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:19:21,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-03-10 23:19:21,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741079049] [2021-03-10 23:19:21,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 23:19:21,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:19:21,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 23:19:21,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-03-10 23:19:21,710 INFO L87 Difference]: Start difference. First operand 6135 states and 21934 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:19:22,060 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-03-10 23:19:22,351 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-03-10 23:19:22,932 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2021-03-10 23:19:23,415 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2021-03-10 23:19:24,051 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2021-03-10 23:19:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:19:24,831 INFO L93 Difference]: Finished difference Result 9093 states and 31725 transitions. [2021-03-10 23:19:24,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 23:19:24,832 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) Word has length 33 [2021-03-10 23:19:24,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:19:24,853 INFO L225 Difference]: With dead ends: 9093 [2021-03-10 23:19:24,854 INFO L226 Difference]: Without dead ends: 8883 [2021-03-10 23:19:24,854 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 3772.6ms TimeCoverageRelationStatistics Valid=205, Invalid=985, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 23:19:24,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8883 states. [2021-03-10 23:19:24,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8883 to 6225. [2021-03-10 23:19:24,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6225 states, 6224 states have (on average 3.570694087403599) internal successors, (22224), 6224 states have internal predecessors, (22224), 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) [2021-03-10 23:19:24,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6225 states to 6225 states and 22224 transitions. [2021-03-10 23:19:24,982 INFO L78 Accepts]: Start accepts. Automaton has 6225 states and 22224 transitions. Word has length 33 [2021-03-10 23:19:24,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:19:24,982 INFO L480 AbstractCegarLoop]: Abstraction has 6225 states and 22224 transitions. [2021-03-10 23:19:24,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:19:24,982 INFO L276 IsEmpty]: Start isEmpty. Operand 6225 states and 22224 transitions. [2021-03-10 23:19:24,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:19:24,996 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:19:24,996 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:19:25,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable576 [2021-03-10 23:19:25,211 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:19:25,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:19:25,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1751058778, now seen corresponding path program 20 times [2021-03-10 23:19:25,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:19:25,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054436353] [2021-03-10 23:19:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:19:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:19:25,676 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 25 [2021-03-10 23:19:25,938 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 30 [2021-03-10 23:19:26,223 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 35 [2021-03-10 23:19:26,432 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 33 [2021-03-10 23:19:26,638 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 29 [2021-03-10 23:19:26,907 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 18 [2021-03-10 23:19:26,950 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:19:26,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054436353] [2021-03-10 23:19:26,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964572849] [2021-03-10 23:19:26,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:19:26,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 23:19:26,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:19:26,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-10 23:19:26,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:19:27,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:27,256 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:27,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:27,270 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:27,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:27,282 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:27,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:27,295 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:27,449 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-10 23:19:27,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:27,451 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:19:27,451 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:269, output treesize:265 [2021-03-10 23:19:27,623 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-03-10 23:19:27,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:27,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:27,654 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:27,797 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-03-10 23:19:27,797 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:27,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:27,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:27,813 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:27,972 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-03-10 23:19:27,973 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:27,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:27,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:27,988 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:28,123 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-03-10 23:19:28,124 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:28,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:28,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:28,142 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:28,275 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-03-10 23:19:28,276 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:28,278 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:19:28,278 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:301, output treesize:297 [2021-03-10 23:19:28,451 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-03-10 23:19:28,910 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2021-03-10 23:19:28,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:28,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-03-10 23:19:28,975 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:28,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:28,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2021-03-10 23:19:28,987 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:29,621 WARN L205 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-03-10 23:19:29,622 INFO L628 ElimStorePlain]: treesize reduction 129, result has 84.1 percent of original size [2021-03-10 23:19:29,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:29,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-03-10 23:19:29,634 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:29,939 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-03-10 23:19:29,940 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:29,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:29,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-03-10 23:19:29,953 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:29,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:29,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-03-10 23:19:29,964 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:30,482 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-03-10 23:19:30,483 INFO L628 ElimStorePlain]: treesize reduction 65, result has 89.4 percent of original size [2021-03-10 23:19:30,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:30,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-03-10 23:19:30,496 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:30,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:30,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-03-10 23:19:30,507 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:30,738 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-03-10 23:19:30,739 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:30,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:30,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-03-10 23:19:30,750 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:30,973 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-03-10 23:19:30,973 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:30,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:30,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-03-10 23:19:30,985 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:30,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:30,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-03-10 23:19:30,994 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:31,208 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-03-10 23:19:31,209 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:31,211 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-03-10 23:19:31,211 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:859, output treesize:423 [2021-03-10 23:19:31,467 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-03-10 23:19:32,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-03-10 23:19:32,365 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:32,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:19:32,391 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:32,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:19:32,418 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:32,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-03-10 23:19:32,436 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:33,942 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 246 [2021-03-10 23:19:33,943 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:33,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-03-10 23:19:33,967 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:33,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-03-10 23:19:33,993 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:34,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:19:34,019 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:34,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:19:34,037 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:35,398 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 235 [2021-03-10 23:19:35,399 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:35,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-03-10 23:19:35,423 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:35,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-03-10 23:19:35,441 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:36,864 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 223 DAG size of output: 166 [2021-03-10 23:19:36,865 INFO L628 ElimStorePlain]: treesize reduction 708, result has 52.7 percent of original size [2021-03-10 23:19:36,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-03-10 23:19:36,877 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:37,441 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-03-10 23:19:37,441 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:37,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-03-10 23:19:37,454 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:37,645 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 5 [2021-03-10 23:19:37,646 INFO L628 ElimStorePlain]: treesize reduction 740, result has 0.7 percent of original size [2021-03-10 23:19:37,646 INFO L518 ElimStorePlain]: Eliminatee v_prenex_195 vanished before elimination [2021-03-10 23:19:37,646 INFO L518 ElimStorePlain]: Eliminatee v_prenex_196 vanished before elimination [2021-03-10 23:19:37,646 INFO L518 ElimStorePlain]: Eliminatee v_prenex_197 vanished before elimination [2021-03-10 23:19:37,646 INFO L518 ElimStorePlain]: Eliminatee v_prenex_198 vanished before elimination [2021-03-10 23:19:37,646 INFO L518 ElimStorePlain]: Eliminatee v_prenex_199 vanished before elimination [2021-03-10 23:19:37,646 INFO L518 ElimStorePlain]: Eliminatee v_prenex_189 vanished before elimination [2021-03-10 23:19:37,646 INFO L518 ElimStorePlain]: Eliminatee v_prenex_200 vanished before elimination [2021-03-10 23:19:37,646 INFO L518 ElimStorePlain]: Eliminatee v_prenex_201 vanished before elimination [2021-03-10 23:19:37,646 INFO L518 ElimStorePlain]: Eliminatee v_prenex_202 vanished before elimination [2021-03-10 23:19:37,646 INFO L518 ElimStorePlain]: Eliminatee v_prenex_203 vanished before elimination [2021-03-10 23:19:37,647 INFO L518 ElimStorePlain]: Eliminatee v_prenex_204 vanished before elimination [2021-03-10 23:19:37,647 INFO L518 ElimStorePlain]: Eliminatee v_prenex_205 vanished before elimination [2021-03-10 23:19:37,647 INFO L518 ElimStorePlain]: Eliminatee v_prenex_206 vanished before elimination [2021-03-10 23:19:37,647 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-03-10 23:19:37,647 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-03-10 23:19:37,648 INFO L550 ElimStorePlain]: Start of recursive call 1: 20 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:19:37,648 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 20 variables, input treesize:1801, output treesize:5 [2021-03-10 23:19:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:19:37,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:19:37,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-03-10 23:19:37,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921281671] [2021-03-10 23:19:37,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 23:19:37,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:19:37,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 23:19:37,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-03-10 23:19:37,675 INFO L87 Difference]: Start difference. First operand 6225 states and 22224 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:19:38,020 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-03-10 23:19:38,596 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2021-03-10 23:19:39,134 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2021-03-10 23:19:39,620 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2021-03-10 23:19:40,152 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2021-03-10 23:19:40,948 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2021-03-10 23:19:41,606 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2021-03-10 23:19:41,966 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-03-10 23:19:42,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:19:42,082 INFO L93 Difference]: Finished difference Result 8764 states and 30577 transitions. [2021-03-10 23:19:42,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 23:19:42,088 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) Word has length 33 [2021-03-10 23:19:42,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:19:42,107 INFO L225 Difference]: With dead ends: 8764 [2021-03-10 23:19:42,107 INFO L226 Difference]: Without dead ends: 8632 [2021-03-10 23:19:42,108 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 5911.5ms TimeCoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 23:19:42,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8632 states. [2021-03-10 23:19:42,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8632 to 6218. [2021-03-10 23:19:42,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6217 states have (on average 3.5710149589834326) internal successors, (22201), 6217 states have internal predecessors, (22201), 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) [2021-03-10 23:19:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 22201 transitions. [2021-03-10 23:19:42,255 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 22201 transitions. Word has length 33 [2021-03-10 23:19:42,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:19:42,255 INFO L480 AbstractCegarLoop]: Abstraction has 6218 states and 22201 transitions. [2021-03-10 23:19:42,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:19:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 22201 transitions. [2021-03-10 23:19:42,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:19:42,263 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:19:42,263 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:19:42,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable830 [2021-03-10 23:19:42,464 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:19:42,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:19:42,464 INFO L82 PathProgramCache]: Analyzing trace with hash 207179588, now seen corresponding path program 21 times [2021-03-10 23:19:42,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:19:42,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800696189] [2021-03-10 23:19:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:19:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:19:42,909 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2021-03-10 23:19:43,105 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2021-03-10 23:19:43,313 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2021-03-10 23:19:43,513 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2021-03-10 23:19:43,845 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:19:43,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800696189] [2021-03-10 23:19:43,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949877589] [2021-03-10 23:19:43,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:19:43,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-03-10 23:19:43,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:19:43,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-10 23:19:43,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:19:44,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:44,258 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:44,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:44,267 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:44,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:44,277 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:44,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:19:44,287 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:44,448 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-03-10 23:19:44,449 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:44,451 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:19:44,451 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:289, output treesize:285 [2021-03-10 23:19:44,676 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-03-10 23:19:45,103 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-03-10 23:19:45,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:45,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:45,158 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:45,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:45,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:19:45,175 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:45,793 WARN L205 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2021-03-10 23:19:45,794 INFO L628 ElimStorePlain]: treesize reduction 158, result has 75.0 percent of original size [2021-03-10 23:19:45,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:45,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:19:45,812 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:45,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:45,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:45,826 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:46,119 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-03-10 23:19:46,120 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:46,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:46,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:19:46,136 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:46,396 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-03-10 23:19:46,396 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:46,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:46,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-03-10 23:19:46,411 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:46,652 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-03-10 23:19:46,653 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:46,655 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-03-10 23:19:46,655 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:633, output treesize:469 [2021-03-10 23:19:46,964 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-03-10 23:19:47,316 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-03-10 23:19:47,670 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-03-10 23:19:47,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:47,884 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:47,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 44 [2021-03-10 23:19:47,892 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-03-10 23:19:47,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:47,927 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:47,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 50 [2021-03-10 23:19:47,935 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-03-10 23:19:49,161 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 114 DAG size of output: 97 [2021-03-10 23:19:49,162 INFO L628 ElimStorePlain]: treesize reduction 226, result has 80.1 percent of original size [2021-03-10 23:19:49,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:49,202 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:49,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 44 [2021-03-10 23:19:49,210 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-03-10 23:19:49,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:49,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-03-10 23:19:49,222 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:50,434 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2021-03-10 23:19:50,435 INFO L628 ElimStorePlain]: treesize reduction 40, result has 95.6 percent of original size [2021-03-10 23:19:50,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:50,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-03-10 23:19:50,499 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:51,674 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2021-03-10 23:19:51,675 INFO L628 ElimStorePlain]: treesize reduction 20, result has 97.7 percent of original size [2021-03-10 23:19:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:51,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-03-10 23:19:51,692 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:51,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:51,742 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-03-10 23:19:51,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 40 [2021-03-10 23:19:51,748 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:52,272 WARN L205 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-03-10 23:19:52,273 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:52,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:52,315 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:52,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 44 [2021-03-10 23:19:52,323 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2021-03-10 23:19:52,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:52,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2021-03-10 23:19:52,336 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:53,325 WARN L205 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2021-03-10 23:19:53,326 INFO L628 ElimStorePlain]: treesize reduction 103, result has 87.0 percent of original size [2021-03-10 23:19:53,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:19:53,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-03-10 23:19:53,338 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:54,226 WARN L205 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-03-10 23:19:54,227 INFO L628 ElimStorePlain]: treesize reduction 20, result has 97.0 percent of original size [2021-03-10 23:19:54,235 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 6 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-03-10 23:19:54,235 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:1075, output treesize:749 [2021-03-10 23:19:55,057 WARN L205 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2021-03-10 23:19:55,391 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-03-10 23:19:56,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-03-10 23:19:56,634 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:56,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:19:56,658 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:58,627 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification that was a NOOP. DAG size: 397 [2021-03-10 23:19:58,628 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:19:58,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:19:58,664 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:19:58,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:19:58,689 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:00,710 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 390 [2021-03-10 23:20:00,711 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:00,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:20:00,744 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:00,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-03-10 23:20:00,768 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:02,946 WARN L205 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 380 [2021-03-10 23:20:02,947 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:02,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-03-10 23:20:02,984 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:03,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-03-10 23:20:03,010 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:05,195 WARN L205 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 369 DAG size of output: 227 [2021-03-10 23:20:05,196 INFO L628 ElimStorePlain]: treesize reduction 757, result has 53.4 percent of original size [2021-03-10 23:20:05,196 INFO L518 ElimStorePlain]: Eliminatee v_prenex_221 vanished before elimination [2021-03-10 23:20:05,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:20:05,225 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:05,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-03-10 23:20:05,245 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:06,089 WARN L205 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2021-03-10 23:20:06,091 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:06,091 INFO L518 ElimStorePlain]: Eliminatee v_prenex_222 vanished before elimination [2021-03-10 23:20:06,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-03-10 23:20:06,121 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:06,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-03-10 23:20:06,143 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:06,358 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 5 [2021-03-10 23:20:06,359 INFO L628 ElimStorePlain]: treesize reduction 777, result has 0.6 percent of original size [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_245 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_223 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_246 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_224 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_225 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_247 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_226 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_248 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_249 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_227 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_217 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_239 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_218 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_219 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_250 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_251 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_252 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_230 vanished before elimination [2021-03-10 23:20:06,360 INFO L518 ElimStorePlain]: Eliminatee v_prenex_231 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_232 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_233 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_234 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_235 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_236 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_237 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_215 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_238 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_216 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_228 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee v_prenex_229 vanished before elimination [2021-03-10 23:20:06,361 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-03-10 23:20:06,362 INFO L550 ElimStorePlain]: Start of recursive call 1: 40 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:20:06,363 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 40 variables, input treesize:1841, output treesize:5 [2021-03-10 23:20:06,398 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:20:06,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:20:06,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-03-10 23:20:06,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394167956] [2021-03-10 23:20:06,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 23:20:06,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:20:06,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 23:20:06,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2021-03-10 23:20:06,399 INFO L87 Difference]: Start difference. First operand 6218 states and 22201 transitions. Second operand has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 states have internal predecessors, (58), 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) [2021-03-10 23:20:06,776 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2021-03-10 23:20:07,083 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2021-03-10 23:20:08,356 WARN L205 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-03-10 23:20:08,929 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2021-03-10 23:20:10,071 WARN L205 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2021-03-10 23:20:11,086 WARN L205 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-03-10 23:20:11,972 WARN L205 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2021-03-10 23:20:13,308 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 23:20:14,012 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-03-10 23:20:14,699 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2021-03-10 23:20:15,681 WARN L205 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-03-10 23:20:17,155 WARN L205 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-03-10 23:20:17,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:20:17,215 INFO L93 Difference]: Finished difference Result 7905 states and 27674 transitions. [2021-03-10 23:20:17,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 23:20:17,217 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 states have internal predecessors, (58), 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) Word has length 33 [2021-03-10 23:20:17,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:20:17,236 INFO L225 Difference]: With dead ends: 7905 [2021-03-10 23:20:17,236 INFO L226 Difference]: Without dead ends: 7774 [2021-03-10 23:20:17,237 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 12882.7ms TimeCoverageRelationStatistics Valid=304, Invalid=1418, Unknown=0, NotChecked=0, Total=1722 [2021-03-10 23:20:17,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7774 states. [2021-03-10 23:20:17,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7774 to 6202. [2021-03-10 23:20:17,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6201 states have (on average 3.5734558942106114) internal successors, (22159), 6201 states have internal predecessors, (22159), 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) [2021-03-10 23:20:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 22159 transitions. [2021-03-10 23:20:17,349 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 22159 transitions. Word has length 33 [2021-03-10 23:20:17,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:20:17,349 INFO L480 AbstractCegarLoop]: Abstraction has 6202 states and 22159 transitions. [2021-03-10 23:20:17,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.0714285714285716) internal successors, (58), 27 states have internal predecessors, (58), 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) [2021-03-10 23:20:17,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 22159 transitions. [2021-03-10 23:20:17,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:20:17,359 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:20:17,359 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:20:17,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable963 [2021-03-10 23:20:17,575 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:20:17,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:20:17,576 INFO L82 PathProgramCache]: Analyzing trace with hash -320803294, now seen corresponding path program 22 times [2021-03-10 23:20:17,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:20:17,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545133262] [2021-03-10 23:20:17,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:20:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:20:18,319 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2021-03-10 23:20:18,665 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2021-03-10 23:20:19,091 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 44 [2021-03-10 23:20:19,396 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 34 [2021-03-10 23:20:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:20:19,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545133262] [2021-03-10 23:20:19,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957352033] [2021-03-10 23:20:19,599 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:20:19,624 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-10 23:20:19,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:20:19,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-10 23:20:19,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:20:19,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:20:19,908 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:19,941 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:19,943 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:20:19,943 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-03-10 23:20:20,491 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-03-10 23:20:21,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:20:21,333 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:20:21,359 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:20:21,388 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:20:21,414 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:20:21,440 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:20:21,477 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:20:21,505 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:20:21,530 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:20:21,558 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:20:21,584 INFO L550 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:20:21,612 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:20:21,640 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:20:21,669 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:20:21,700 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-03-10 23:20:21,732 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:21,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-03-10 23:20:21,759 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:22,844 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 144 [2021-03-10 23:20:22,845 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:22,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-03-10 23:20:22,886 INFO L550 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:22,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-03-10 23:20:22,922 INFO L550 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:22,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-03-10 23:20:22,960 INFO L550 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:22,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-03-10 23:20:22,994 INFO L550 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-03-10 23:20:23,026 INFO L550 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2021-03-10 23:20:23,060 INFO L550 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:20:23,095 INFO L550 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-03-10 23:20:23,127 INFO L550 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:20:23,162 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:20:23,196 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-03-10 23:20:23,231 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2021-03-10 23:20:23,267 INFO L550 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2021-03-10 23:20:23,301 INFO L550 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-03-10 23:20:23,335 INFO L550 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2021-03-10 23:20:23,368 INFO L550 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:23,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2021-03-10 23:20:23,390 INFO L550 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:25,157 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 180 DAG size of output: 173 [2021-03-10 23:20:25,159 INFO L628 ElimStorePlain]: treesize reduction 56, result has 89.6 percent of original size [2021-03-10 23:20:25,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:20:25,189 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,221 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,258 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,296 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,367 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,397 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,430 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:20:25,458 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,488 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,518 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:20:25,546 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,576 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,605 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-03-10 23:20:25,634 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,663 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:25,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-03-10 23:20:25,689 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:26,230 WARN L205 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-03-10 23:20:26,231 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:26,238 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 11 xjuncts. [2021-03-10 23:20:26,238 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 3 variables, input treesize:1153, output treesize:260 [2021-03-10 23:20:26,546 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2021-03-10 23:20:26,923 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2021-03-10 23:20:26,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-03-10 23:20:26,993 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:27,032 INFO L628 ElimStorePlain]: treesize reduction 108, result has 4.4 percent of original size [2021-03-10 23:20:27,032 INFO L518 ElimStorePlain]: Eliminatee v_prenex_253 vanished before elimination [2021-03-10 23:20:27,032 INFO L518 ElimStorePlain]: Eliminatee v_prenex_254 vanished before elimination [2021-03-10 23:20:27,032 INFO L518 ElimStorePlain]: Eliminatee v_prenex_255 vanished before elimination [2021-03-10 23:20:27,034 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:20:27,034 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:128, output treesize:5 [2021-03-10 23:20:27,053 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:20:27,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:20:27,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-03-10 23:20:27,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413191882] [2021-03-10 23:20:27,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 23:20:27,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:20:27,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 23:20:27,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2021-03-10 23:20:27,054 INFO L87 Difference]: Start difference. First operand 6202 states and 22159 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:20:27,727 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2021-03-10 23:20:28,330 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-03-10 23:20:29,017 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-10 23:20:29,827 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 29 [2021-03-10 23:20:30,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:20:30,782 INFO L93 Difference]: Finished difference Result 8633 states and 30105 transitions. [2021-03-10 23:20:30,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 23:20:30,785 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) Word has length 33 [2021-03-10 23:20:30,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:20:30,805 INFO L225 Difference]: With dead ends: 8633 [2021-03-10 23:20:30,805 INFO L226 Difference]: Without dead ends: 8590 [2021-03-10 23:20:30,806 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 4777.0ms TimeCoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2021-03-10 23:20:30,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2021-03-10 23:20:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 6280. [2021-03-10 23:20:30,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6280 states, 6279 states have (on average 3.568561872909699) internal successors, (22407), 6279 states have internal predecessors, (22407), 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) [2021-03-10 23:20:30,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 22407 transitions. [2021-03-10 23:20:30,919 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 22407 transitions. Word has length 33 [2021-03-10 23:20:30,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:20:30,919 INFO L480 AbstractCegarLoop]: Abstraction has 6280 states and 22407 transitions. [2021-03-10 23:20:30,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:20:30,919 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 22407 transitions. [2021-03-10 23:20:30,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:20:30,929 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:20:30,929 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:20:31,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1128 [2021-03-10 23:20:31,130 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:20:31,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:20:31,131 INFO L82 PathProgramCache]: Analyzing trace with hash 875509148, now seen corresponding path program 23 times [2021-03-10 23:20:31,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:20:31,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366998943] [2021-03-10 23:20:31,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:20:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:20:31,895 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2021-03-10 23:20:32,227 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 23 [2021-03-10 23:20:32,616 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 30 [2021-03-10 23:20:32,942 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 27 [2021-03-10 23:20:33,127 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 21 [2021-03-10 23:20:33,352 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:20:33,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366998943] [2021-03-10 23:20:33,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831805652] [2021-03-10 23:20:33,353 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:20:33,385 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-03-10 23:20:33,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:20:33,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-10 23:20:33,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:20:33,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:20:33,713 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:20:33,758 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:33,760 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:20:33,760 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:45 [2021-03-10 23:20:34,370 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-03-10 23:20:34,759 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-03-10 23:20:35,249 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-03-10 23:20:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:38,714 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:38,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 58 [2021-03-10 23:20:38,767 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:38,839 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:38,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 51 [2021-03-10 23:20:38,866 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:38,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:38,951 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:38,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 58 [2021-03-10 23:20:38,983 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:38,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:39,062 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:39,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 58 [2021-03-10 23:20:39,097 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:39,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:39,182 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:39,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 58 [2021-03-10 23:20:39,230 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:39,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:39,338 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:39,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 51 [2021-03-10 23:20:39,358 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:39,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:39,466 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:39,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 51 [2021-03-10 23:20:39,493 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:39,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:39,616 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:39,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 51 [2021-03-10 23:20:39,649 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:39,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:39,811 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:39,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 51 [2021-03-10 23:20:39,847 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:39,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:39,944 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:39,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 58 [2021-03-10 23:20:39,992 INFO L550 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:40,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:40,150 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:40,151 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:40,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 51 [2021-03-10 23:20:40,171 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:40,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:40,307 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:40,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 58 [2021-03-10 23:20:40,335 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:40,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:40,458 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:40,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 51 [2021-03-10 23:20:40,490 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:40,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:40,623 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:40,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 51 [2021-03-10 23:20:40,655 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:40,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:40,775 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:40,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 51 [2021-03-10 23:20:40,814 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:40,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:41,069 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:41,071 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:41,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 51 [2021-03-10 23:20:41,092 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:41,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:41,313 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:41,314 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:41,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 51 [2021-03-10 23:20:41,353 INFO L550 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:41,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:41,588 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:41,589 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:41,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 51 [2021-03-10 23:20:41,621 INFO L550 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:41,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:41,846 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:41,847 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:41,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 58 [2021-03-10 23:20:41,924 INFO L550 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:42,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:42,224 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:42,225 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:42,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 58 [2021-03-10 23:20:42,265 INFO L550 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:42,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:42,506 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:42,507 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:42,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 51 [2021-03-10 23:20:42,541 INFO L550 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:42,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:42,770 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:42,771 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:42,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 58 [2021-03-10 23:20:42,826 INFO L550 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:42,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:43,059 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:43,060 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:43,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 58 [2021-03-10 23:20:43,118 INFO L550 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:43,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:43,423 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:43,424 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:43,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 51 [2021-03-10 23:20:43,457 INFO L550 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:43,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:43,764 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:43,765 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:43,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 58 [2021-03-10 23:20:43,816 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:43,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:44,069 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:44,070 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:44,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 58 [2021-03-10 23:20:44,110 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:44,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:44,418 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:44,419 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:44,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 51 [2021-03-10 23:20:44,439 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:44,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:44,800 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:44,801 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:44,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 58 [2021-03-10 23:20:44,852 INFO L550 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:44,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:45,146 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:45,147 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:45,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 58 [2021-03-10 23:20:45,193 INFO L550 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:45,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:45,377 INFO L244 Elim1Store]: Index analysis took 136 ms [2021-03-10 23:20:45,565 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:45,566 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:45,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 51 [2021-03-10 23:20:45,591 INFO L550 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:45,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:45,903 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:45,904 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:45,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 58 [2021-03-10 23:20:45,944 INFO L550 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:20:46,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:20:46,284 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:20:46,285 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:20:46,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 58 [2021-03-10 23:20:46,327 INFO L550 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:09,016 WARN L205 SmtUtils]: Spent 22.69 s on a formula simplification. DAG size of input: 415 DAG size of output: 372 [2021-03-10 23:21:09,018 INFO L628 ElimStorePlain]: treesize reduction 296, result has 90.0 percent of original size [2021-03-10 23:21:09,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:09,257 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:09,258 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:09,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 77 [2021-03-10 23:21:09,329 INFO L550 ElimStorePlain]: Start of recursive call 34: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:09,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:09,586 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:09,587 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:09,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 59 [2021-03-10 23:21:09,637 INFO L550 ElimStorePlain]: Start of recursive call 35: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:09,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:09,870 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:09,871 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:09,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 45 [2021-03-10 23:21:09,897 INFO L550 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:09,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:10,127 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:10,128 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:10,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 77 [2021-03-10 23:21:10,221 INFO L550 ElimStorePlain]: Start of recursive call 37: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:10,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:10,450 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:10,451 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:10,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 95 treesize of output 83 [2021-03-10 23:21:10,602 INFO L550 ElimStorePlain]: Start of recursive call 38: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:10,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:10,904 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:10,905 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:10,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 59 [2021-03-10 23:21:10,955 INFO L550 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:10,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:11,183 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:11,185 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:11,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 77 [2021-03-10 23:21:11,256 INFO L550 ElimStorePlain]: Start of recursive call 40: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:11,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:11,567 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:11,568 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:11,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 83 [2021-03-10 23:21:11,635 INFO L550 ElimStorePlain]: Start of recursive call 41: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:11,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:12,096 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:12,097 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:12,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 59 [2021-03-10 23:21:12,130 INFO L550 ElimStorePlain]: Start of recursive call 42: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:12,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:12,313 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:12,314 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:12,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 83 [2021-03-10 23:21:12,410 INFO L550 ElimStorePlain]: Start of recursive call 43: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:12,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:12,673 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:12,674 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:12,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 77 [2021-03-10 23:21:12,750 INFO L550 ElimStorePlain]: Start of recursive call 44: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:12,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:12,964 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:12,965 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:12,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 77 [2021-03-10 23:21:13,056 INFO L550 ElimStorePlain]: Start of recursive call 45: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:13,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:13,344 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:13,345 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:13,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 59 [2021-03-10 23:21:13,378 INFO L550 ElimStorePlain]: Start of recursive call 46: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:13,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:13,666 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:13,667 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:13,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 45 [2021-03-10 23:21:13,696 INFO L550 ElimStorePlain]: Start of recursive call 47: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:13,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:13,917 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:13,919 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:13,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 72 [2021-03-10 23:21:14,016 INFO L550 ElimStorePlain]: Start of recursive call 48: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:14,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:14,373 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:14,374 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:14,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 45 [2021-03-10 23:21:14,396 INFO L550 ElimStorePlain]: Start of recursive call 49: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:14,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:14,700 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:14,702 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:14,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 59 [2021-03-10 23:21:14,737 INFO L550 ElimStorePlain]: Start of recursive call 50: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:14,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:14,999 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:15,000 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:15,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 59 [2021-03-10 23:21:15,053 INFO L550 ElimStorePlain]: Start of recursive call 51: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:15,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:15,419 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:15,420 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:15,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 45 [2021-03-10 23:21:15,452 INFO L550 ElimStorePlain]: Start of recursive call 52: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:15,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:15,673 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:15,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 72 [2021-03-10 23:21:15,761 INFO L550 ElimStorePlain]: Start of recursive call 53: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:15,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:15,928 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:15,929 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:15,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 72 [2021-03-10 23:21:15,994 INFO L550 ElimStorePlain]: Start of recursive call 54: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:16,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:16,203 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:16,204 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:16,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 72 [2021-03-10 23:21:16,291 INFO L550 ElimStorePlain]: Start of recursive call 55: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:16,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:16,514 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:16,515 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:16,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 59 [2021-03-10 23:21:16,557 INFO L550 ElimStorePlain]: Start of recursive call 56: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:16,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:16,824 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:16,825 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:16,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 45 [2021-03-10 23:21:16,845 INFO L550 ElimStorePlain]: Start of recursive call 57: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:16,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:17,095 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:17,097 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:17,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 59 [2021-03-10 23:21:17,129 INFO L550 ElimStorePlain]: Start of recursive call 58: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:17,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:17,366 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:17,367 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:17,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 83 [2021-03-10 23:21:17,488 INFO L550 ElimStorePlain]: Start of recursive call 59: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:17,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:17,775 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:17,776 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:17,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 45 [2021-03-10 23:21:17,823 INFO L550 ElimStorePlain]: Start of recursive call 60: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:17,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:18,215 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:18,216 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:18,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 45 [2021-03-10 23:21:18,248 INFO L550 ElimStorePlain]: Start of recursive call 61: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:18,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:18,462 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:18,463 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:18,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 45 [2021-03-10 23:21:18,502 INFO L550 ElimStorePlain]: Start of recursive call 62: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:18,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:18,792 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:18,793 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:18,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 77 [2021-03-10 23:21:18,872 INFO L550 ElimStorePlain]: Start of recursive call 63: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:18,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:19,094 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:19,095 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:19,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 77 [2021-03-10 23:21:19,191 INFO L550 ElimStorePlain]: Start of recursive call 64: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:19,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:19,445 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-03-10 23:21:19,446 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:21:19,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 77 [2021-03-10 23:21:19,532 INFO L550 ElimStorePlain]: Start of recursive call 65: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-03-10 23:21:55,938 WARN L205 SmtUtils]: Spent 36.40 s on a formula simplification. DAG size of input: 586 DAG size of output: 451 [2021-03-10 23:21:55,940 INFO L628 ElimStorePlain]: treesize reduction 1214, result has 60.7 percent of original size [2021-03-10 23:21:55,974 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:55,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:55,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2021-03-10 23:21:56,020 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,058 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2021-03-10 23:21:56,106 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2021-03-10 23:21:56,176 INFO L550 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,215 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,222 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-03-10 23:21:56,250 INFO L550 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,326 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,334 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2021-03-10 23:21:56,369 INFO L550 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,398 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2021-03-10 23:21:56,436 INFO L550 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2021-03-10 23:21:56,503 INFO L550 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2021-03-10 23:21:56,570 INFO L550 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 55 [2021-03-10 23:21:56,638 INFO L550 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2021-03-10 23:21:56,702 INFO L550 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2021-03-10 23:21:56,767 INFO L550 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2021-03-10 23:21:56,830 INFO L550 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:56,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2021-03-10 23:21:56,897 INFO L550 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:56,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2021-03-10 23:21:56,962 INFO L550 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:56,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2021-03-10 23:21:57,033 INFO L550 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2021-03-10 23:21:57,098 INFO L550 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2021-03-10 23:21:57,164 INFO L550 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2021-03-10 23:21:57,231 INFO L550 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,271 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2021-03-10 23:21:57,300 INFO L550 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,334 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-03-10 23:21:57,372 INFO L550 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2021-03-10 23:21:57,436 INFO L550 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,476 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2021-03-10 23:21:57,504 INFO L550 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2021-03-10 23:21:57,571 INFO L550 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 61 [2021-03-10 23:21:57,638 INFO L550 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2021-03-10 23:21:57,706 INFO L550 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,742 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-03-10 23:21:57,775 INFO L550 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-03-10 23:21:57,847 INFO L550 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,890 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:57,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2021-03-10 23:21:57,918 INFO L550 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:57,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:57,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2021-03-10 23:21:57,985 INFO L550 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:58,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:58,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:58,028 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:21:58,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 40 [2021-03-10 23:21:58,055 INFO L550 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:58,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:58,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 67 [2021-03-10 23:21:58,121 INFO L550 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2021-03-10 23:21:58,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:21:58,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2021-03-10 23:21:58,179 INFO L550 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:01,873 WARN L205 SmtUtils]: Spent 3.69 s on a formula simplification that was a NOOP. DAG size: 403 [2021-03-10 23:22:01,875 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:02,406 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 20 dim-0 vars, and 20 xjuncts. [2021-03-10 23:22:02,406 INFO L247 ElimStorePlain]: Needed 97 recursive calls to eliminate 4 variables, input treesize:2721, output treesize:1166 [2021-03-10 23:22:03,615 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 85 [2021-03-10 23:22:08,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:08,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:08,646 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:08,658 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:08,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2021-03-10 23:22:08,666 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:08,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:08,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:08,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:08,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:08,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2021-03-10 23:22:08,719 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:08,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:08,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:08,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:08,766 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:08,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-03-10 23:22:08,774 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:08,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:08,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:08,809 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:08,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 1 [2021-03-10 23:22:08,817 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:10,070 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 101 DAG size of output: 80 [2021-03-10 23:22:10,072 INFO L628 ElimStorePlain]: treesize reduction 276, result has 50.0 percent of original size [2021-03-10 23:22:10,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:10,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:10,093 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:10,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2021-03-10 23:22:10,102 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:10,580 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-03-10 23:22:10,581 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:10,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:10,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2021-03-10 23:22:10,608 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:11,082 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-03-10 23:22:11,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:11,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:11,100 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:11,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-03-10 23:22:11,109 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:11,984 WARN L205 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-03-10 23:22:11,985 INFO L628 ElimStorePlain]: treesize reduction 8, result has 96.5 percent of original size [2021-03-10 23:22:12,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:12,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2021-03-10 23:22:12,013 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:12,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:12,029 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:12,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-03-10 23:22:12,038 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:12,714 WARN L205 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-03-10 23:22:12,716 INFO L628 ElimStorePlain]: treesize reduction 16, result has 90.8 percent of original size [2021-03-10 23:22:12,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:12,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:12,742 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:12,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2021-03-10 23:22:12,754 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:12,766 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:12,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:12,772 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:22:12,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-03-10 23:22:12,786 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:12,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:12,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 12 [2021-03-10 23:22:12,808 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:13,167 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-03-10 23:22:13,168 INFO L628 ElimStorePlain]: treesize reduction 28, result has 71.1 percent of original size [2021-03-10 23:22:13,179 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 6 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-10 23:22:13,180 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 14 variables, input treesize:680, output treesize:11 [2021-03-10 23:22:13,221 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:22:13,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:22:13,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 23 [2021-03-10 23:22:13,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742334886] [2021-03-10 23:22:13,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-10 23:22:13,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:22:13,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-10 23:22:13,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2021-03-10 23:22:13,223 INFO L87 Difference]: Start difference. First operand 6280 states and 22407 transitions. Second operand has 24 states, 24 states have (on average 2.5) internal successors, (60), 23 states have internal predecessors, (60), 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) [2021-03-10 23:22:13,829 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 29 [2021-03-10 23:22:14,299 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2021-03-10 23:22:15,132 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2021-03-10 23:22:16,701 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 23:22:17,991 WARN L205 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2021-03-10 23:22:20,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:22:20,487 INFO L93 Difference]: Finished difference Result 8577 states and 29914 transitions. [2021-03-10 23:22:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 23:22:20,491 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5) internal successors, (60), 23 states have internal predecessors, (60), 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) Word has length 33 [2021-03-10 23:22:20,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:22:20,509 INFO L225 Difference]: With dead ends: 8577 [2021-03-10 23:22:20,509 INFO L226 Difference]: Without dead ends: 8400 [2021-03-10 23:22:20,510 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 8795.6ms TimeCoverageRelationStatistics Valid=171, Invalid=759, Unknown=0, NotChecked=0, Total=930 [2021-03-10 23:22:20,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8400 states. [2021-03-10 23:22:20,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8400 to 6348. [2021-03-10 23:22:20,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6348 states, 6347 states have (on average 3.561997794233496) internal successors, (22608), 6347 states have internal predecessors, (22608), 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) [2021-03-10 23:22:20,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 22608 transitions. [2021-03-10 23:22:20,607 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 22608 transitions. Word has length 33 [2021-03-10 23:22:20,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:22:20,607 INFO L480 AbstractCegarLoop]: Abstraction has 6348 states and 22608 transitions. [2021-03-10 23:22:20,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.5) internal successors, (60), 23 states have internal predecessors, (60), 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) [2021-03-10 23:22:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 22608 transitions. [2021-03-10 23:22:20,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:22:20,616 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:22:20,616 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:22:20,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1174,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:22:20,817 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:22:20,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:22:20,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1829810274, now seen corresponding path program 24 times [2021-03-10 23:22:20,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:22:20,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869791680] [2021-03-10 23:22:20,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:22:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:22:20,918 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-03-10 23:22:20,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869791680] [2021-03-10 23:22:20,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731696930] [2021-03-10 23:22:20,918 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:22:20,942 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-03-10 23:22:20,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:22:20,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-10 23:22:20,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:22:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-03-10 23:22:21,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:22:21,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-10 23:22:21,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429424837] [2021-03-10 23:22:21,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-10 23:22:21,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:22:21,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-10 23:22:21,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-10 23:22:21,356 INFO L87 Difference]: Start difference. First operand 6348 states and 22608 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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) [2021-03-10 23:22:21,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:22:21,758 INFO L93 Difference]: Finished difference Result 9208 states and 32067 transitions. [2021-03-10 23:22:21,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-10 23:22:21,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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) Word has length 33 [2021-03-10 23:22:21,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:22:21,783 INFO L225 Difference]: With dead ends: 9208 [2021-03-10 23:22:21,784 INFO L226 Difference]: Without dead ends: 9114 [2021-03-10 23:22:21,784 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 248.0ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-03-10 23:22:21,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9114 states. [2021-03-10 23:22:21,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 6624. [2021-03-10 23:22:21,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6624 states, 6623 states have (on average 3.5461271327193113) internal successors, (23486), 6623 states have internal predecessors, (23486), 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) [2021-03-10 23:22:21,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 23486 transitions. [2021-03-10 23:22:21,895 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 23486 transitions. Word has length 33 [2021-03-10 23:22:21,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:22:21,895 INFO L480 AbstractCegarLoop]: Abstraction has 6624 states and 23486 transitions. [2021-03-10 23:22:21,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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) [2021-03-10 23:22:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 23486 transitions. [2021-03-10 23:22:21,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:22:21,905 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:22:21,905 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:22:22,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2102 [2021-03-10 23:22:22,105 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:22:22,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:22:22,106 INFO L82 PathProgramCache]: Analyzing trace with hash 908088048, now seen corresponding path program 25 times [2021-03-10 23:22:22,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:22:22,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686107778] [2021-03-10 23:22:22,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:22:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:22:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-10 23:22:22,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686107778] [2021-03-10 23:22:22,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252609962] [2021-03-10 23:22:22,169 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-10 23:22:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:22:22,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-10 23:22:22,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:22:22,534 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-03-10 23:22:22,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:22:22,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-10 23:22:22,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932486874] [2021-03-10 23:22:22,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 23:22:22,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:22:22,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 23:22:22,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-10 23:22:22,539 INFO L87 Difference]: Start difference. First operand 6624 states and 23486 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-03-10 23:22:22,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:22:22,700 INFO L93 Difference]: Finished difference Result 6820 states and 24081 transitions. [2021-03-10 23:22:22,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-10 23:22:22,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) Word has length 33 [2021-03-10 23:22:22,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:22:22,720 INFO L225 Difference]: With dead ends: 6820 [2021-03-10 23:22:22,720 INFO L226 Difference]: Without dead ends: 6814 [2021-03-10 23:22:22,720 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-10 23:22:22,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6814 states. [2021-03-10 23:22:22,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6814 to 6552. [2021-03-10 23:22:22,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6552 states, 6551 states have (on average 3.551060906731797) internal successors, (23263), 6551 states have internal predecessors, (23263), 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) [2021-03-10 23:22:22,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 23263 transitions. [2021-03-10 23:22:22,819 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 23263 transitions. Word has length 33 [2021-03-10 23:22:22,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:22:22,819 INFO L480 AbstractCegarLoop]: Abstraction has 6552 states and 23263 transitions. [2021-03-10 23:22:22,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-03-10 23:22:22,819 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 23263 transitions. [2021-03-10 23:22:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:22:22,829 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:22:22,829 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:22:23,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2103,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:22:23,030 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:22:23,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:22:23,030 INFO L82 PathProgramCache]: Analyzing trace with hash 129571106, now seen corresponding path program 26 times [2021-03-10 23:22:23,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:22:23,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441067511] [2021-03-10 23:22:23,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:22:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:22:23,483 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2021-03-10 23:22:23,679 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-10 23:22:24,400 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 47 [2021-03-10 23:22:25,162 WARN L205 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2021-03-10 23:22:25,799 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 47 [2021-03-10 23:22:26,052 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 22 [2021-03-10 23:22:26,304 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:22:26,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441067511] [2021-03-10 23:22:26,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912306401] [2021-03-10 23:22:26,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:22:26,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-10 23:22:26,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:22:26,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-10 23:22:26,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:22:26,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2021-03-10 23:22:26,851 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:26,907 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:26,910 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:22:26,911 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-03-10 23:22:27,312 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-03-10 23:22:27,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:27,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:22:27,403 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:27,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:27,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:22:27,446 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:27,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:27,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:22:27,488 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:27,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:22:27,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-03-10 23:22:27,522 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:27,918 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-03-10 23:22:27,920 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:27,923 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-03-10 23:22:27,924 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:301, output treesize:297 [2021-03-10 23:22:28,461 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-03-10 23:22:29,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2021-03-10 23:22:29,723 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:31,320 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 343 [2021-03-10 23:22:31,322 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:31,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 29 [2021-03-10 23:22:31,354 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:34,028 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 335 DAG size of output: 293 [2021-03-10 23:22:34,030 INFO L628 ElimStorePlain]: treesize reduction 132, result has 87.9 percent of original size [2021-03-10 23:22:34,030 INFO L518 ElimStorePlain]: Eliminatee v_prenex_285 vanished before elimination [2021-03-10 23:22:34,030 INFO L518 ElimStorePlain]: Eliminatee v_prenex_286 vanished before elimination [2021-03-10 23:22:34,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2021-03-10 23:22:34,059 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:35,357 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 286 [2021-03-10 23:22:35,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:35,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2021-03-10 23:22:35,387 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:37,610 WARN L205 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 276 DAG size of output: 255 [2021-03-10 23:22:37,612 INFO L628 ElimStorePlain]: treesize reduction 69, result has 92.5 percent of original size [2021-03-10 23:22:37,613 INFO L518 ElimStorePlain]: Eliminatee v_prenex_289 vanished before elimination [2021-03-10 23:22:37,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:22:37,641 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:38,750 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 250 [2021-03-10 23:22:38,752 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:38,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:22:38,777 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:39,862 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 244 [2021-03-10 23:22:39,864 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:39,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-03-10 23:22:39,894 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:41,331 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 230 DAG size of output: 161 [2021-03-10 23:22:41,333 INFO L628 ElimStorePlain]: treesize reduction 263, result has 66.7 percent of original size [2021-03-10 23:22:41,333 INFO L518 ElimStorePlain]: Eliminatee v_prenex_303 vanished before elimination [2021-03-10 23:22:41,333 INFO L518 ElimStorePlain]: Eliminatee v_prenex_304 vanished before elimination [2021-03-10 23:22:41,333 INFO L518 ElimStorePlain]: Eliminatee v_prenex_290 vanished before elimination [2021-03-10 23:22:41,333 INFO L518 ElimStorePlain]: Eliminatee v_prenex_291 vanished before elimination [2021-03-10 23:22:41,333 INFO L518 ElimStorePlain]: Eliminatee v_prenex_292 vanished before elimination [2021-03-10 23:22:41,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:22:41,356 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:42,003 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-03-10 23:22:42,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:42,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-03-10 23:22:42,027 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:43,034 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 147 DAG size of output: 106 [2021-03-10 23:22:43,036 INFO L628 ElimStorePlain]: treesize reduction 161, result has 67.8 percent of original size [2021-03-10 23:22:43,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-03-10 23:22:43,056 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:43,483 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-03-10 23:22:43,484 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:43,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 37 [2021-03-10 23:22:43,504 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:44,241 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2021-03-10 23:22:44,242 INFO L628 ElimStorePlain]: treesize reduction 35, result has 88.3 percent of original size [2021-03-10 23:22:44,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_297 vanished before elimination [2021-03-10 23:22:44,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_298 vanished before elimination [2021-03-10 23:22:44,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:22:44,261 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:44,577 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-03-10 23:22:44,578 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:44,578 INFO L518 ElimStorePlain]: Eliminatee v_prenex_299 vanished before elimination [2021-03-10 23:22:44,579 INFO L518 ElimStorePlain]: Eliminatee v_prenex_311 vanished before elimination [2021-03-10 23:22:44,579 INFO L518 ElimStorePlain]: Eliminatee v_prenex_312 vanished before elimination [2021-03-10 23:22:44,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:22:44,596 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:44,885 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-03-10 23:22:44,886 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:44,886 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-03-10 23:22:44,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2021-03-10 23:22:44,904 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:45,495 WARN L205 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2021-03-10 23:22:45,497 INFO L628 ElimStorePlain]: treesize reduction 5, result has 97.6 percent of original size [2021-03-10 23:22:45,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-03-10 23:22:45,516 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:45,773 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-03-10 23:22:45,775 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:22:45,775 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-03-10 23:22:45,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-03-10 23:22:45,792 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:46,006 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 21 [2021-03-10 23:22:46,008 INFO L628 ElimStorePlain]: treesize reduction 109, result has 31.9 percent of original size [2021-03-10 23:22:46,008 INFO L518 ElimStorePlain]: Eliminatee v_prenex_309 vanished before elimination [2021-03-10 23:22:46,011 INFO L550 ElimStorePlain]: Start of recursive call 1: 32 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-03-10 23:22:46,011 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 32 variables, input treesize:1137, output treesize:47 [2021-03-10 23:22:46,670 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-03-10 23:22:46,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-03-10 23:22:46,756 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:22:46,798 INFO L628 ElimStorePlain]: treesize reduction 41, result has 10.9 percent of original size [2021-03-10 23:22:46,798 INFO L518 ElimStorePlain]: Eliminatee v_prenex_313 vanished before elimination [2021-03-10 23:22:46,801 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:22:46,801 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:5 [2021-03-10 23:22:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:22:46,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:22:46,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-03-10 23:22:46,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249153511] [2021-03-10 23:22:46,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-10 23:22:46,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:22:46,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-10 23:22:46,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-03-10 23:22:46,845 INFO L87 Difference]: Start difference. First operand 6552 states and 23263 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:22:47,338 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2021-03-10 23:22:47,801 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-03-10 23:22:48,267 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2021-03-10 23:22:48,984 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2021-03-10 23:22:50,503 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-10 23:22:52,407 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2021-03-10 23:22:53,446 WARN L205 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-03-10 23:22:55,284 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-03-10 23:22:56,361 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2021-03-10 23:22:57,883 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2021-03-10 23:22:58,316 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2021-03-10 23:22:59,508 WARN L205 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-03-10 23:23:00,568 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 24 [2021-03-10 23:23:02,114 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2021-03-10 23:23:02,865 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-03-10 23:23:03,207 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2021-03-10 23:23:04,576 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-03-10 23:23:05,049 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2021-03-10 23:23:06,235 WARN L205 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2021-03-10 23:23:06,897 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2021-03-10 23:23:07,451 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 21 [2021-03-10 23:23:08,715 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-03-10 23:23:09,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:23:09,165 INFO L93 Difference]: Finished difference Result 10683 states and 36755 transitions. [2021-03-10 23:23:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 23:23:09,170 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) Word has length 33 [2021-03-10 23:23:09,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:23:09,194 INFO L225 Difference]: With dead ends: 10683 [2021-03-10 23:23:09,194 INFO L226 Difference]: Without dead ends: 10563 [2021-03-10 23:23:09,195 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 21149.9ms TimeCoverageRelationStatistics Valid=363, Invalid=1989, Unknown=0, NotChecked=0, Total=2352 [2021-03-10 23:23:09,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2021-03-10 23:23:09,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 6710. [2021-03-10 23:23:09,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6710 states, 6709 states have (on average 3.552839469369504) internal successors, (23836), 6709 states have internal predecessors, (23836), 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) [2021-03-10 23:23:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6710 states to 6710 states and 23836 transitions. [2021-03-10 23:23:09,314 INFO L78 Accepts]: Start accepts. Automaton has 6710 states and 23836 transitions. Word has length 33 [2021-03-10 23:23:09,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:23:09,314 INFO L480 AbstractCegarLoop]: Abstraction has 6710 states and 23836 transitions. [2021-03-10 23:23:09,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 22 states have internal predecessors, (62), 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) [2021-03-10 23:23:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 6710 states and 23836 transitions. [2021-03-10 23:23:09,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-03-10 23:23:09,324 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 23:23:09,324 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 23:23:09,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2104 [2021-03-10 23:23:09,539 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 23:23:09,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 23:23:09,539 INFO L82 PathProgramCache]: Analyzing trace with hash 800704726, now seen corresponding path program 27 times [2021-03-10 23:23:09,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 23:23:09,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184841110] [2021-03-10 23:23:09,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 23:23:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 23:23:09,838 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 17 [2021-03-10 23:23:10,002 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 21 [2021-03-10 23:23:10,158 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-03-10 23:23:10,697 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2021-03-10 23:23:11,308 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-03-10 23:23:12,350 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 50 [2021-03-10 23:23:12,958 WARN L205 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 31 [2021-03-10 23:23:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:23:13,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184841110] [2021-03-10 23:23:13,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188287784] [2021-03-10 23:23:13,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-10 23:23:13,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-03-10 23:23:13,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-10 23:23:13,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-10 23:23:13,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-10 23:23:13,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-03-10 23:23:13,883 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:13,947 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:23:13,949 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:23:13,950 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:42 [2021-03-10 23:23:14,354 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-03-10 23:23:14,505 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-03-10 23:23:14,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:23:14,512 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:14,601 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-03-10 23:23:14,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:23:14,607 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:14,692 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-03-10 23:23:14,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:23:14,698 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:14,777 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-03-10 23:23:14,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2021-03-10 23:23:14,783 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:15,269 WARN L205 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-03-10 23:23:15,271 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:23:15,279 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-03-10 23:23:15,279 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:285, output treesize:281 [2021-03-10 23:23:15,939 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-03-10 23:23:16,711 WARN L205 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-03-10 23:23:18,690 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2021-03-10 23:23:21,707 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:23:21,709 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:23:21,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 62 [2021-03-10 23:23:21,730 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:21,969 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:23:21,971 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:23:21,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 62 [2021-03-10 23:23:21,994 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:22,193 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:23:22,194 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:23:22,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 53 [2021-03-10 23:23:22,202 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:22,365 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:23:22,366 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:23:22,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 53 [2021-03-10 23:23:22,375 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:26,397 WARN L205 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 236 [2021-03-10 23:23:26,399 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:23:26,629 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:23:26,631 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:23:26,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 51 [2021-03-10 23:23:26,651 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:26,900 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:23:26,902 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:23:26,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 51 [2021-03-10 23:23:26,921 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:27,074 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-03-10 23:23:27,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 38 [2021-03-10 23:23:27,081 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:27,252 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 3 [2021-03-10 23:23:27,254 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-03-10 23:23:27,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 38 [2021-03-10 23:23:27,261 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:31,062 WARN L205 SmtUtils]: Spent 3.80 s on a formula simplification that was a NOOP. DAG size: 241 [2021-03-10 23:23:31,064 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:23:31,323 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:23:31,325 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:23:31,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 51 [2021-03-10 23:23:31,355 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2021-03-10 23:23:31,595 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:23:31,597 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:23:31,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 42 [2021-03-10 23:23:31,604 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:31,866 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:23:31,867 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:23:31,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 51 [2021-03-10 23:23:31,887 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:32,055 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 3 [2021-03-10 23:23:32,057 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-03-10 23:23:32,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 38 [2021-03-10 23:23:32,065 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:40,235 WARN L205 SmtUtils]: Spent 8.17 s on a formula simplification. DAG size of input: 248 DAG size of output: 247 [2021-03-10 23:23:40,237 INFO L628 ElimStorePlain]: treesize reduction 40, result has 98.1 percent of original size [2021-03-10 23:23:40,463 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-03-10 23:23:40,465 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:23:40,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 125 [2021-03-10 23:23:40,723 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 3 xjuncts. [2021-03-10 23:23:40,948 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:23:40,950 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:23:40,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 95 [2021-03-10 23:23:41,009 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:41,180 INFO L354 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2021-03-10 23:23:41,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 46 [2021-03-10 23:23:41,190 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:41,263 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-03-10 23:23:41,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 1 [2021-03-10 23:23:41,270 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:49,313 WARN L205 SmtUtils]: Spent 8.04 s on a formula simplification. DAG size of input: 265 DAG size of output: 218 [2021-03-10 23:23:49,315 INFO L628 ElimStorePlain]: treesize reduction 355, result has 82.7 percent of original size [2021-03-10 23:23:49,538 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-03-10 23:23:49,540 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:23:49,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 92 [2021-03-10 23:23:49,748 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 3 xjuncts. [2021-03-10 23:23:49,885 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 23:23:49,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 1 [2021-03-10 23:23:49,891 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:50,034 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 23:23:50,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 1 [2021-03-10 23:23:50,041 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:50,170 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-03-10 23:23:50,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 40 [2021-03-10 23:23:50,179 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:56,935 WARN L205 SmtUtils]: Spent 6.76 s on a formula simplification. DAG size of input: 219 DAG size of output: 198 [2021-03-10 23:23:56,938 INFO L628 ElimStorePlain]: treesize reduction 207, result has 87.3 percent of original size [2021-03-10 23:23:57,216 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2021-03-10 23:23:57,218 INFO L354 Elim1Store]: treesize reduction 4, result has 84.0 percent of original size [2021-03-10 23:23:57,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 57 [2021-03-10 23:23:57,265 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:57,562 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2021-03-10 23:23:57,564 INFO L354 Elim1Store]: treesize reduction 4, result has 84.0 percent of original size [2021-03-10 23:23:57,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 80 [2021-03-10 23:23:57,644 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:57,757 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-03-10 23:23:57,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 1 [2021-03-10 23:23:57,764 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-03-10 23:23:57,835 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-03-10 23:23:57,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 1 [2021-03-10 23:23:57,841 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:06,701 WARN L205 SmtUtils]: Spent 8.86 s on a formula simplification. DAG size of input: 195 DAG size of output: 181 [2021-03-10 23:24:06,704 INFO L628 ElimStorePlain]: treesize reduction 142, result has 89.7 percent of original size [2021-03-10 23:24:06,949 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:24:06,951 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:24:06,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 52 [2021-03-10 23:24:06,974 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:07,219 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:24:07,221 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:24:07,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 52 [2021-03-10 23:24:07,243 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:07,459 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:24:07,461 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:24:07,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 43 [2021-03-10 23:24:07,471 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:07,624 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:24:07,626 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:24:07,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 43 [2021-03-10 23:24:07,635 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:10,619 WARN L205 SmtUtils]: Spent 2.98 s on a formula simplification that was a NOOP. DAG size: 183 [2021-03-10 23:24:10,621 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:24:10,818 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:24:10,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 40 [2021-03-10 23:24:10,871 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 3 xjuncts. [2021-03-10 23:24:11,110 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-03-10 23:24:11,112 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:24:11,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 84 [2021-03-10 23:24:11,256 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 3 xjuncts. [2021-03-10 23:24:11,419 INFO L354 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2021-03-10 23:24:11,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 31 [2021-03-10 23:24:11,428 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:11,516 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-03-10 23:24:11,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 1 [2021-03-10 23:24:11,523 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:19,596 WARN L205 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 188 DAG size of output: 160 [2021-03-10 23:24:19,598 INFO L628 ElimStorePlain]: treesize reduction 247, result has 80.0 percent of original size [2021-03-10 23:24:19,876 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:24:19,878 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:24:19,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 55 [2021-03-10 23:24:19,915 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2021-03-10 23:24:20,177 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:24:20,179 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:24:20,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 55 [2021-03-10 23:24:20,203 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:20,423 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:24:20,426 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:24:20,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 46 [2021-03-10 23:24:20,434 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:20,607 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:24:20,609 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:24:20,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 46 [2021-03-10 23:24:20,618 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:25,849 WARN L205 SmtUtils]: Spent 5.23 s on a formula simplification. DAG size of input: 170 DAG size of output: 168 [2021-03-10 23:24:25,851 INFO L628 ElimStorePlain]: treesize reduction 35, result has 96.8 percent of original size [2021-03-10 23:24:26,022 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:24:26,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 50 [2021-03-10 23:24:26,075 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 3 xjuncts. [2021-03-10 23:24:26,241 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-03-10 23:24:26,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 80 [2021-03-10 23:24:26,274 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 3 xjuncts. [2021-03-10 23:24:26,483 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:24:26,485 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:24:26,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 139 treesize of output 114 [2021-03-10 23:24:26,514 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:26,580 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-03-10 23:24:26,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 1 [2021-03-10 23:24:26,587 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:33,153 WARN L205 SmtUtils]: Spent 6.57 s on a formula simplification. DAG size of input: 159 DAG size of output: 142 [2021-03-10 23:24:33,155 INFO L628 ElimStorePlain]: treesize reduction 122, result has 86.2 percent of original size [2021-03-10 23:24:33,408 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:24:33,410 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:24:33,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 44 [2021-03-10 23:24:33,432 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:33,643 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:24:33,645 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:24:33,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 35 [2021-03-10 23:24:33,652 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:33,903 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-03-10 23:24:33,904 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-03-10 23:24:33,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 44 [2021-03-10 23:24:33,925 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:34,079 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:24:34,081 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:24:34,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 35 [2021-03-10 23:24:34,088 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:35,961 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 143 [2021-03-10 23:24:35,962 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:24:36,173 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-03-10 23:24:36,175 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:24:36,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 69 [2021-03-10 23:24:36,301 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 3 xjuncts. [2021-03-10 23:24:36,478 INFO L354 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2021-03-10 23:24:36,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 27 [2021-03-10 23:24:36,487 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:36,591 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-03-10 23:24:36,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 1 [2021-03-10 23:24:36,597 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:36,790 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-03-10 23:24:36,792 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-03-10 23:24:36,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 65 [2021-03-10 23:24:36,814 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:40,155 WARN L205 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 151 DAG size of output: 126 [2021-03-10 23:24:40,157 INFO L628 ElimStorePlain]: treesize reduction 197, result has 74.3 percent of original size [2021-03-10 23:24:40,266 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: 11 dim-0 vars, and 13 xjuncts. [2021-03-10 23:24:40,266 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 18 variables, input treesize:1945, output treesize:574 [2021-03-10 23:24:41,072 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 64 [2021-03-10 23:24:43,277 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-03-10 23:24:44,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:24:44,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:24:44,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:24:44,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2021-03-10 23:24:44,324 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:44,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:24:44,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:24:44,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-03-10 23:24:44,359 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:45,222 WARN L205 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2021-03-10 23:24:45,224 INFO L628 ElimStorePlain]: treesize reduction 47, result has 74.5 percent of original size [2021-03-10 23:24:45,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:24:45,243 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:24:45,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-03-10 23:24:45,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-03-10 23:24:45,268 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:45,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-03-10 23:24:45,289 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:45,792 WARN L205 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-03-10 23:24:45,794 INFO L628 ElimStorePlain]: treesize reduction 12, result has 89.0 percent of original size [2021-03-10 23:24:45,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:24:45,872 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:24:45,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2021-03-10 23:24:45,898 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2021-03-10 23:24:45,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:24:45,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-03-10 23:24:45,923 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:46,351 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2021-03-10 23:24:46,353 INFO L628 ElimStorePlain]: treesize reduction 6, result has 91.9 percent of original size [2021-03-10 23:24:46,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-10 23:24:46,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-03-10 23:24:46,409 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-03-10 23:24:46,589 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-03-10 23:24:46,591 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-10 23:24:46,605 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-10 23:24:46,605 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 8 variables, input treesize:231, output treesize:1 [2021-03-10 23:24:46,668 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 23:24:46,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-10 23:24:46,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 25 [2021-03-10 23:24:46,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480258006] [2021-03-10 23:24:46,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-03-10 23:24:46,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 23:24:46,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-03-10 23:24:46,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2021-03-10 23:24:46,670 INFO L87 Difference]: Start difference. First operand 6710 states and 23836 transitions. Second operand has 25 states, 25 states have (on average 2.64) internal successors, (66), 25 states have internal predecessors, (66), 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) [2021-03-10 23:24:47,071 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-03-10 23:24:47,707 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-03-10 23:24:48,143 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 35 [2021-03-10 23:24:48,479 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 32 [2021-03-10 23:24:49,172 WARN L205 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2021-03-10 23:24:50,319 WARN L205 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2021-03-10 23:24:51,735 WARN L205 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2021-03-10 23:24:54,148 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 141 DAG size of output: 124 [2021-03-10 23:24:56,780 WARN L205 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 146 DAG size of output: 128 [2021-03-10 23:24:58,578 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 158 DAG size of output: 102 [2021-03-10 23:24:59,871 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2021-03-10 23:25:00,222 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-03-10 23:25:01,696 WARN L205 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-10 23:25:03,130 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2021-03-10 23:25:03,823 WARN L205 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-03-10 23:25:04,332 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2021-03-10 23:25:05,496 WARN L205 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2021-03-10 23:25:05,881 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2021-03-10 23:25:07,029 WARN L205 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-03-10 23:25:07,565 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32 [2021-03-10 23:25:08,219 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-03-10 23:25:09,198 WARN L205 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2021-03-10 23:25:11,738 WARN L205 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2021-03-10 23:25:12,096 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2021-03-10 23:25:12,914 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2021-03-10 23:25:13,687 WARN L205 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-03-10 23:25:14,793 WARN L205 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2021-03-10 23:25:17,433 WARN L205 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2021-03-10 23:25:19,218 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-03-10 23:25:20,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 23:25:20,444 INFO L93 Difference]: Finished difference Result 10691 states and 37051 transitions. [2021-03-10 23:25:20,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-03-10 23:25:20,449 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 25 states have internal predecessors, (66), 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) Word has length 33 [2021-03-10 23:25:20,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 23:25:20,450 INFO L225 Difference]: With dead ends: 10691 [2021-03-10 23:25:20,450 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 23:25:20,451 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 36850.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2634, Unknown=0, NotChecked=0, Total=3080 [2021-03-10 23:25:20,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 23:25:20,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 23:25:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-03-10 23:25:20,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 23:25:20,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-03-10 23:25:20,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 23:25:20,451 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 23:25:20,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 25 states have internal predecessors, (66), 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) [2021-03-10 23:25:20,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 23:25:20,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 23:25:20,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2134 [2021-03-10 23:25:20,656 INFO L202 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 11:25:20 BasicIcfg [2021-03-10 23:25:20,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 23:25:20,657 INFO L168 Benchmark]: Toolchain (without parser) took 469803.89 ms. Allocated memory was 255.9 MB in the beginning and 1.2 GB in the end (delta: 952.1 MB). Free memory was 236.3 MB in the beginning and 461.7 MB in the end (delta: -225.4 MB). Peak memory consumption was 728.4 MB. Max. memory is 16.0 GB. [2021-03-10 23:25:20,657 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory was 237.5 MB in the beginning and 237.5 MB in the end (delta: 90.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 23:25:20,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.88 ms. Allocated memory is still 255.9 MB. Free memory was 235.8 MB in the beginning and 234.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 23:25:20,657 INFO L168 Benchmark]: Boogie Preprocessor took 21.77 ms. Allocated memory is still 255.9 MB. Free memory was 234.3 MB in the beginning and 233.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 23:25:20,657 INFO L168 Benchmark]: RCFGBuilder took 266.09 ms. Allocated memory is still 255.9 MB. Free memory was 233.2 MB in the beginning and 235.1 MB in the end (delta: -1.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-03-10 23:25:20,657 INFO L168 Benchmark]: TraceAbstraction took 469488.35 ms. Allocated memory was 255.9 MB in the beginning and 1.2 GB in the end (delta: 952.1 MB). Free memory was 234.6 MB in the beginning and 461.7 MB in the end (delta: -227.1 MB). Peak memory consumption was 724.9 MB. Max. memory is 16.0 GB. [2021-03-10 23:25:20,657 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 0.09 ms. Allocated memory is still 255.9 MB. Free memory was 237.5 MB in the beginning and 237.5 MB in the end (delta: 90.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.88 ms. Allocated memory is still 255.9 MB. Free memory was 235.8 MB in the beginning and 234.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.77 ms. Allocated memory is still 255.9 MB. Free memory was 234.3 MB in the beginning and 233.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 266.09 ms. Allocated memory is still 255.9 MB. Free memory was 233.2 MB in the beginning and 235.1 MB in the end (delta: -1.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 469488.35 ms. Allocated memory was 255.9 MB in the beginning and 1.2 GB in the end (delta: 952.1 MB). Free memory was 234.6 MB in the beginning and 461.7 MB in the end (delta: -227.1 MB). Peak memory consumption was 724.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 74]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 469423.8ms, OverallIterations: 32, TraceHistogramMax: 2, EmptinessCheckTime: 215.1ms, AutomataDifference: 99985.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 33.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1142 SDtfs, 4915 SDslu, 5840 SDs, 0 SdLazy, 12438 SolverSat, 874 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14260.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1325 GetRequests, 656 SyntacticMatches, 15 SemanticMatches, 654 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5987 ImplicationChecksByTransitivity, 111748.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6710occurred in iteration=31, InterpolantAutomatonStates: 500, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2459.3ms AutomataMinimizationTime, 32 MinimizatonAttempts, 42309 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 125.6ms SsaConstructionTime, 645.7ms SatisfiabilityAnalysisTime, 359753.6ms InterpolantComputationTime, 1741 NumberOfCodeBlocks, 1741 NumberOfCodeBlocksAsserted, 90 NumberOfCheckSat, 1683 ConstructedInterpolants, 19 QuantifiedInterpolants, 72922 SizeOfPredicates, 80 NumberOfNonLiveVariables, 2102 ConjunctsInSsa, 439 ConjunctsInUnsatCore, 58 InterpolantComputations, 6 PerfectInterpolantSequences, 153/524 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...