/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-min.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 16:00:24,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 16:00:24,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 16:00:24,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-03 16:00:24,758 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 [2021-05-03 16:00:24,803 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 16:00:24,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 16:00:24,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 16:00:24,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 16:00:24,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 16:00:24,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 16:00:24,810 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 16:00:24,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 16:00:24,811 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 16:00:24,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 16:00:24,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 16:00:24,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 16:00:24,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 16:00:24,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 16:00:24,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 16:00:24,813 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 16:00:24,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 16:00:24,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 16:00:24,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 16:00:24,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 16:00:24,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 16:00:24,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 16:00:24,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 16:00:24,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 16:00:24,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 16:00:24,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 16:00:24,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 16:00:24,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 16:00:24,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 16:00:24,815 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 16:00:24,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 16:00:24,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 16:00:25,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 16:00:25,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 16:00:25,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 16:00:25,332 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 16:00:25,334 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 16:00:25,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-min.wvr.bpl [2021-05-03 16:00:25,336 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-min.wvr.bpl' [2021-05-03 16:00:25,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 16:00:25,420 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 16:00:25,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 16:00:25,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 16:00:25,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 16:00:25,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (1/1) ... [2021-05-03 16:00:25,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (1/1) ... [2021-05-03 16:00:25,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 16:00:25,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 16:00:25,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 16:00:25,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 16:00:25,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (1/1) ... [2021-05-03 16:00:25,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (1/1) ... [2021-05-03 16:00:25,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (1/1) ... [2021-05-03 16:00:25,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (1/1) ... [2021-05-03 16:00:25,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (1/1) ... [2021-05-03 16:00:25,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (1/1) ... [2021-05-03 16:00:25,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (1/1) ... [2021-05-03 16:00:25,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 16:00:25,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 16:00:25,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 16:00:25,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 16:00:25,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (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 [2021-05-03 16:00:25,561 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 16:00:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 16:00:25,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 16:00:25,563 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 16:00:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 16:00:25,563 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 16:00:25,563 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 16:00:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 16:00:25,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 16:00:25,564 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-05-03 16:00:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-05-03 16:00:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-05-03 16:00:25,566 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 16:00:25,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 16:00:25,920 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-03 16:00:25,923 INFO L202 PluginConnector]: Adding new model three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 04:00:25 BoogieIcfgContainer [2021-05-03 16:00:25,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 16:00:25,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 16:00:25,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 16:00:25,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 16:00:25,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 04:00:25" (1/2) ... [2021-05-03 16:00:25,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42774c4b and model type three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 04:00:25, skipping insertion in model container [2021-05-03 16:00:25,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 04:00:25" (2/2) ... [2021-05-03 16:00:25,933 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-min.wvr.bpl [2021-05-03 16:00:25,940 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 16:00:25,941 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 16:00:25,946 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 16:00:25,947 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 16:00:26,017 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-05-03 16:00:26,048 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-03 16:00:26,084 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 16:00:26,086 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 16:00:26,086 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 16:00:26,086 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 16:00:26,088 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 16:00:26,092 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 16:00:26,092 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 16:00:26,093 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 16:00:26,112 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 32 transitions, 88 flow [2021-05-03 16:00:26,154 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) [2021-05-03 16:00:26,160 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) [2021-05-03 16:00:26,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-05-03 16:00:26,176 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:26,177 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 16:00:26,178 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:26,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:26,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1734431870, now seen corresponding path program 1 times [2021-05-03 16:00:26,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:26,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179789153] [2021-05-03 16:00:26,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:26,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:26,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179789153] [2021-05-03 16:00:26,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 16:00:26,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-03 16:00:26,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091430440] [2021-05-03 16:00:26,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-03 16:00:26,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:26,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-03 16:00:26,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-03 16:00:26,565 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) [2021-05-03 16:00:26,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:26,700 INFO L93 Difference]: Finished difference Result 474 states and 1450 transitions. [2021-05-03 16:00:26,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 16:00:26,703 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 [2021-05-03 16:00:26,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:26,732 INFO L225 Difference]: With dead ends: 474 [2021-05-03 16:00:26,733 INFO L226 Difference]: Without dead ends: 388 [2021-05-03 16:00:26,736 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 76.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-05-03 16:00:26,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-05-03 16:00:26,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 176. [2021-05-03 16:00:26,812 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) [2021-05-03 16:00:26,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 541 transitions. [2021-05-03 16:00:26,816 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 541 transitions. Word has length 19 [2021-05-03 16:00:26,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:26,818 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 541 transitions. [2021-05-03 16:00:26,818 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) [2021-05-03 16:00:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 541 transitions. [2021-05-03 16:00:26,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-03 16:00:26,821 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:26,821 INFO L551 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] [2021-05-03 16:00:26,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 16:00:26,822 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:26,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:26,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1465060434, now seen corresponding path program 1 times [2021-05-03 16:00:26,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:26,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399728280] [2021-05-03 16:00:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:26,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:26,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399728280] [2021-05-03 16:00:26,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 16:00:26,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 16:00:26,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701350919] [2021-05-03 16:00:26,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 16:00:26,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:26,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 16:00:26,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 16:00:26,902 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) [2021-05-03 16:00:27,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:27,023 INFO L93 Difference]: Finished difference Result 346 states and 1050 transitions. [2021-05-03 16:00:27,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 16:00:27,025 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 [2021-05-03 16:00:27,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:27,031 INFO L225 Difference]: With dead ends: 346 [2021-05-03 16:00:27,031 INFO L226 Difference]: Without dead ends: 323 [2021-05-03 16:00:27,034 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-03 16:00:27,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-05-03 16:00:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 253. [2021-05-03 16:00:27,064 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) [2021-05-03 16:00:27,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 792 transitions. [2021-05-03 16:00:27,066 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 792 transitions. Word has length 22 [2021-05-03 16:00:27,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:27,067 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 792 transitions. [2021-05-03 16:00:27,067 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) [2021-05-03 16:00:27,067 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 792 transitions. [2021-05-03 16:00:27,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-03 16:00:27,081 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:27,081 INFO L551 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] [2021-05-03 16:00:27,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-03 16:00:27,082 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:27,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:27,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1960572944, now seen corresponding path program 2 times [2021-05-03 16:00:27,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:27,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903452092] [2021-05-03 16:00:27,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:27,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903452092] [2021-05-03 16:00:27,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 16:00:27,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 16:00:27,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473257871] [2021-05-03 16:00:27,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 16:00:27,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:27,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 16:00:27,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 16:00:27,146 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) [2021-05-03 16:00:27,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:27,244 INFO L93 Difference]: Finished difference Result 495 states and 1542 transitions. [2021-05-03 16:00:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 16:00:27,246 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 [2021-05-03 16:00:27,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:27,252 INFO L225 Difference]: With dead ends: 495 [2021-05-03 16:00:27,253 INFO L226 Difference]: Without dead ends: 472 [2021-05-03 16:00:27,253 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-03 16:00:27,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-05-03 16:00:27,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 304. [2021-05-03 16:00:27,301 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) [2021-05-03 16:00:27,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 995 transitions. [2021-05-03 16:00:27,304 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 995 transitions. Word has length 22 [2021-05-03 16:00:27,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:27,305 INFO L480 AbstractCegarLoop]: Abstraction has 304 states and 995 transitions. [2021-05-03 16:00:27,305 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) [2021-05-03 16:00:27,305 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 995 transitions. [2021-05-03 16:00:27,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-03 16:00:27,307 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:27,307 INFO L551 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] [2021-05-03 16:00:27,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-03 16:00:27,308 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:27,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:27,309 INFO L82 PathProgramCache]: Analyzing trace with hash -515537296, now seen corresponding path program 3 times [2021-05-03 16:00:27,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:27,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592593587] [2021-05-03 16:00:27,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:27,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592593587] [2021-05-03 16:00:27,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 16:00:27,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 16:00:27,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964611320] [2021-05-03 16:00:27,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 16:00:27,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:27,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 16:00:27,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 16:00:27,356 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) [2021-05-03 16:00:27,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:27,408 INFO L93 Difference]: Finished difference Result 348 states and 1103 transitions. [2021-05-03 16:00:27,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 16:00:27,409 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 [2021-05-03 16:00:27,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:27,413 INFO L225 Difference]: With dead ends: 348 [2021-05-03 16:00:27,413 INFO L226 Difference]: Without dead ends: 348 [2021-05-03 16:00:27,413 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-03 16:00:27,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-05-03 16:00:27,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 296. [2021-05-03 16:00:27,428 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) [2021-05-03 16:00:27,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 935 transitions. [2021-05-03 16:00:27,430 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 935 transitions. Word has length 22 [2021-05-03 16:00:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:27,431 INFO L480 AbstractCegarLoop]: Abstraction has 296 states and 935 transitions. [2021-05-03 16:00:27,431 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) [2021-05-03 16:00:27,431 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 935 transitions. [2021-05-03 16:00:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 16:00:27,433 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:27,434 INFO L551 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] [2021-05-03 16:00:27,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-03 16:00:27,434 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:27,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:27,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1889068504, now seen corresponding path program 1 times [2021-05-03 16:00:27,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:27,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651617642] [2021-05-03 16:00:27,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:27,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:27,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651617642] [2021-05-03 16:00:27,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 16:00:27,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 16:00:27,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337810639] [2021-05-03 16:00:27,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 16:00:27,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:27,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 16:00:27,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 16:00:27,516 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) [2021-05-03 16:00:27,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:27,582 INFO L93 Difference]: Finished difference Result 309 states and 971 transitions. [2021-05-03 16:00:27,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 16:00:27,583 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 [2021-05-03 16:00:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:27,586 INFO L225 Difference]: With dead ends: 309 [2021-05-03 16:00:27,586 INFO L226 Difference]: Without dead ends: 309 [2021-05-03 16:00:27,586 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-03 16:00:27,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-05-03 16:00:27,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 256. [2021-05-03 16:00:27,597 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) [2021-05-03 16:00:27,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 800 transitions. [2021-05-03 16:00:27,599 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 800 transitions. Word has length 24 [2021-05-03 16:00:27,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:27,599 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 800 transitions. [2021-05-03 16:00:27,599 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) [2021-05-03 16:00:27,599 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 800 transitions. [2021-05-03 16:00:27,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-03 16:00:27,601 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:27,601 INFO L551 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] [2021-05-03 16:00:27,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-03 16:00:27,601 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:27,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:27,602 INFO L82 PathProgramCache]: Analyzing trace with hash 55067308, now seen corresponding path program 1 times [2021-05-03 16:00:27,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:27,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267247523] [2021-05-03 16:00:27,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:28,154 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 35 [2021-05-03 16:00:28,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:28,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267247523] [2021-05-03 16:00:28,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845723191] [2021-05-03 16:00:28,254 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 [2021-05-03 16:00:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:28,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 16:00:28,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:29,120 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 [2021-05-03 16:00:29,144 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:00:29,153 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 [2021-05-03 16:00:29,169 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:00:29,178 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 [2021-05-03 16:00:29,187 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:00:29,195 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 [2021-05-03 16:00:29,207 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:00:29,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:29,302 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 [2021-05-03 16:00:29,321 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:00:29,346 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 [2021-05-03 16:00:29,362 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:00:29,374 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 [2021-05-03 16:00:29,388 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:00:29,398 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 [2021-05-03 16:00:29,416 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:00:29,487 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:29,502 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 [2021-05-03 16:00:29,504 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:29,515 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 [2021-05-03 16:00:29,518 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:29,528 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 [2021-05-03 16:00:29,530 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:29,549 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 [2021-05-03 16:00:29,555 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:29,612 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:29,622 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-05-03 16:00:29,623 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:197, output treesize:57 [2021-05-03 16:00:29,768 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 [2021-05-03 16:00:29,770 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:29,776 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 7 treesize of output 5 [2021-05-03 16:00:29,786 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:29,795 INFO L628 ElimStorePlain]: treesize reduction 19, result has 20.8 percent of original size [2021-05-03 16:00:29,795 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1 vanished before elimination [2021-05-03 16:00:29,796 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:00:29,796 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:5 [2021-05-03 16:00:29,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:29,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:29,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-05-03 16:00:29,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154943977] [2021-05-03 16:00:29,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-03 16:00:29,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:29,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-03 16:00:29,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-05-03 16:00:29,814 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) [2021-05-03 16:00:29,976 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2021-05-03 16:00:30,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:30,151 INFO L93 Difference]: Finished difference Result 525 states and 1652 transitions. [2021-05-03 16:00:30,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 16:00:30,152 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 [2021-05-03 16:00:30,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:30,156 INFO L225 Difference]: With dead ends: 525 [2021-05-03 16:00:30,156 INFO L226 Difference]: Without dead ends: 482 [2021-05-03 16:00:30,156 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 568.0ms TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2021-05-03 16:00:30,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-05-03 16:00:30,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 373. [2021-05-03 16:00:30,173 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) [2021-05-03 16:00:30,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1176 transitions. [2021-05-03 16:00:30,175 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1176 transitions. Word has length 26 [2021-05-03 16:00:30,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:30,176 INFO L480 AbstractCegarLoop]: Abstraction has 373 states and 1176 transitions. [2021-05-03 16:00:30,176 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) [2021-05-03 16:00:30,176 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1176 transitions. [2021-05-03 16:00:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-03 16:00:30,178 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:30,178 INFO L551 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] [2021-05-03 16:00:30,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-05-03 16:00:30,393 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:30,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:30,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1009368434, now seen corresponding path program 2 times [2021-05-03 16:00:30,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:30,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502821919] [2021-05-03 16:00:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:30,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502821919] [2021-05-03 16:00:30,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 16:00:30,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-03 16:00:30,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997610760] [2021-05-03 16:00:30,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-03 16:00:30,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:30,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-03 16:00:30,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 16:00:30,446 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) [2021-05-03 16:00:30,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:30,475 INFO L93 Difference]: Finished difference Result 524 states and 1595 transitions. [2021-05-03 16:00:30,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 16:00:30,475 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 [2021-05-03 16:00:30,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:30,480 INFO L225 Difference]: With dead ends: 524 [2021-05-03 16:00:30,480 INFO L226 Difference]: Without dead ends: 476 [2021-05-03 16:00:30,481 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 16:00:30,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-05-03 16:00:30,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 403. [2021-05-03 16:00:30,497 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) [2021-05-03 16:00:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 1245 transitions. [2021-05-03 16:00:30,500 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 1245 transitions. Word has length 26 [2021-05-03 16:00:30,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:30,503 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 1245 transitions. [2021-05-03 16:00:30,503 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) [2021-05-03 16:00:30,503 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 1245 transitions. [2021-05-03 16:00:30,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-03 16:00:30,508 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:30,508 INFO L551 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] [2021-05-03 16:00:30,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-03 16:00:30,508 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:30,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:30,509 INFO L82 PathProgramCache]: Analyzing trace with hash -294633458, now seen corresponding path program 3 times [2021-05-03 16:00:30,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:30,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687836410] [2021-05-03 16:00:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:30,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687836410] [2021-05-03 16:00:30,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797773949] [2021-05-03 16:00:30,801 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 [2021-05-03 16:00:30,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-05-03 16:00:30,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:00:30,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-05-03 16:00:30,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:30,972 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 [2021-05-03 16:00:30,973 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:30,984 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:30,986 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:00:30,987 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2021-05-03 16:00:31,161 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 [2021-05-03 16:00:31,165 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,174 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 [2021-05-03 16:00:31,177 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,184 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 [2021-05-03 16:00:31,188 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,194 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 [2021-05-03 16:00:31,197 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:31,250 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 [2021-05-03 16:00:31,255 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,262 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 [2021-05-03 16:00:31,266 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,273 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 [2021-05-03 16:00:31,282 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,287 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 [2021-05-03 16:00:31,292 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,318 INFO L628 ElimStorePlain]: treesize reduction 17, result has 66.0 percent of original size [2021-05-03 16:00:31,319 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-05-03 16:00:31,320 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:185, output treesize:33 [2021-05-03 16:00:31,409 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 [2021-05-03 16:00:31,412 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,420 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 7 treesize of output 5 [2021-05-03 16:00:31,424 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,431 INFO L628 ElimStorePlain]: treesize reduction 19, result has 20.8 percent of original size [2021-05-03 16:00:31,432 INFO L518 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2021-05-03 16:00:31,433 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:00:31,434 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:5 [2021-05-03 16:00:31,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:31,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:31,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2021-05-03 16:00:31,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755383193] [2021-05-03 16:00:31,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 16:00:31,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:31,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 16:00:31,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2021-05-03 16:00:31,464 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) [2021-05-03 16:00:31,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:31,925 INFO L93 Difference]: Finished difference Result 894 states and 2703 transitions. [2021-05-03 16:00:31,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 16:00:31,925 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 [2021-05-03 16:00:31,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:31,931 INFO L225 Difference]: With dead ends: 894 [2021-05-03 16:00:31,931 INFO L226 Difference]: Without dead ends: 776 [2021-05-03 16:00:31,932 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 526.7ms TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2021-05-03 16:00:31,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2021-05-03 16:00:31,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 427. [2021-05-03 16:00:31,951 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) [2021-05-03 16:00:31,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1319 transitions. [2021-05-03 16:00:31,954 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1319 transitions. Word has length 26 [2021-05-03 16:00:31,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:31,955 INFO L480 AbstractCegarLoop]: Abstraction has 427 states and 1319 transitions. [2021-05-03 16:00:31,955 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) [2021-05-03 16:00:31,955 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1319 transitions. [2021-05-03 16:00:31,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-03 16:00:31,957 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:31,957 INFO L551 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] [2021-05-03 16:00:32,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:00:32,185 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:32,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:32,186 INFO L82 PathProgramCache]: Analyzing trace with hash 108055770, now seen corresponding path program 4 times [2021-05-03 16:00:32,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:32,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586039121] [2021-05-03 16:00:32,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:32,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586039121] [2021-05-03 16:00:32,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197910920] [2021-05-03 16:00:32,434 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 [2021-05-03 16:00:32,479 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 16:00:32,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:00:32,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 16:00:32,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:32,594 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 [2021-05-03 16:00:32,596 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:32,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:32,608 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:00:32,609 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2021-05-03 16:00:32,667 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 28 treesize of output 22 [2021-05-03 16:00:32,669 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:32,674 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 [2021-05-03 16:00:32,676 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:32,712 INFO L628 ElimStorePlain]: treesize reduction 30, result has 61.0 percent of original size [2021-05-03 16:00:32,713 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-05-03 16:00:32,714 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:87, output treesize:47 [2021-05-03 16:00:32,932 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 [2021-05-03 16:00:32,935 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:32,942 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 [2021-05-03 16:00:32,946 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:32,954 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 [2021-05-03 16:00:32,957 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:32,966 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 [2021-05-03 16:00:32,969 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:33,121 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2021-05-03 16:00:33,122 INFO L628 ElimStorePlain]: treesize reduction 40, result has 81.6 percent of original size [2021-05-03 16:00:33,131 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 [2021-05-03 16:00:33,133 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:33,139 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 [2021-05-03 16:00:33,141 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:33,166 INFO L628 ElimStorePlain]: treesize reduction 142, result has 3.4 percent of original size [2021-05-03 16:00:33,166 INFO L518 ElimStorePlain]: Eliminatee v_prenex_3 vanished before elimination [2021-05-03 16:00:33,167 INFO L518 ElimStorePlain]: Eliminatee v_prenex_4 vanished before elimination [2021-05-03 16:00:33,167 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:00:33,168 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:273, output treesize:5 [2021-05-03 16:00:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:33,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:33,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-05-03 16:00:33,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254625026] [2021-05-03 16:00:33,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-03 16:00:33,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:33,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-03 16:00:33,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-05-03 16:00:33,187 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) [2021-05-03 16:00:33,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:33,303 INFO L93 Difference]: Finished difference Result 693 states and 2174 transitions. [2021-05-03 16:00:33,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 16:00:33,304 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 [2021-05-03 16:00:33,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:33,309 INFO L225 Difference]: With dead ends: 693 [2021-05-03 16:00:33,310 INFO L226 Difference]: Without dead ends: 604 [2021-05-03 16:00:33,310 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 239.6ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-05-03 16:00:33,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-05-03 16:00:33,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 431. [2021-05-03 16:00:33,330 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) [2021-05-03 16:00:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 1337 transitions. [2021-05-03 16:00:33,333 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 1337 transitions. Word has length 26 [2021-05-03 16:00:33,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:33,334 INFO L480 AbstractCegarLoop]: Abstraction has 431 states and 1337 transitions. [2021-05-03 16:00:33,334 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) [2021-05-03 16:00:33,334 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 1337 transitions. [2021-05-03 16:00:33,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 16:00:33,336 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:33,337 INFO L551 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] [2021-05-03 16:00:33,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-05-03 16:00:33,553 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:33,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:33,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1494058166, now seen corresponding path program 5 times [2021-05-03 16:00:33,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:33,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900361759] [2021-05-03 16:00:33,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:33,604 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:33,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900361759] [2021-05-03 16:00:33,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774799456] [2021-05-03 16:00:33,605 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 [2021-05-03 16:00:33,642 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-05-03 16:00:33,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:00:33,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 16:00:33,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:33,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:33,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:33,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-05-03 16:00:33,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761789473] [2021-05-03 16:00:33,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 16:00:33,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:33,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 16:00:33,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-03 16:00:33,694 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) [2021-05-03 16:00:33,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:33,807 INFO L93 Difference]: Finished difference Result 1077 states and 3313 transitions. [2021-05-03 16:00:33,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 16:00:33,808 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 [2021-05-03 16:00:33,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:33,814 INFO L225 Difference]: With dead ends: 1077 [2021-05-03 16:00:33,814 INFO L226 Difference]: Without dead ends: 1071 [2021-05-03 16:00:33,814 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 36.1ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-05-03 16:00:33,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2021-05-03 16:00:33,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 723. [2021-05-03 16:00:33,842 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) [2021-05-03 16:00:33,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 2383 transitions. [2021-05-03 16:00:33,847 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 2383 transitions. Word has length 28 [2021-05-03 16:00:33,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:33,847 INFO L480 AbstractCegarLoop]: Abstraction has 723 states and 2383 transitions. [2021-05-03 16:00:33,848 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) [2021-05-03 16:00:33,848 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 2383 transitions. [2021-05-03 16:00:33,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 16:00:33,851 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:33,851 INFO L551 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] [2021-05-03 16:00:34,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:00:34,073 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:34,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:34,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1505385586, now seen corresponding path program 6 times [2021-05-03 16:00:34,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:34,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143019500] [2021-05-03 16:00:34,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:34,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143019500] [2021-05-03 16:00:34,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68999852] [2021-05-03 16:00:34,102 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 [2021-05-03 16:00:34,134 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-05-03 16:00:34,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:00:34,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-03 16:00:34,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:34,209 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:34,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:34,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-05-03 16:00:34,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691966185] [2021-05-03 16:00:34,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-03 16:00:34,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:34,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-03 16:00:34,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-05-03 16:00:34,211 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) [2021-05-03 16:00:34,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:34,930 INFO L93 Difference]: Finished difference Result 3105 states and 9211 transitions. [2021-05-03 16:00:34,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-03 16:00:34,931 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 [2021-05-03 16:00:34,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:34,952 INFO L225 Difference]: With dead ends: 3105 [2021-05-03 16:00:34,952 INFO L226 Difference]: Without dead ends: 2785 [2021-05-03 16:00:34,953 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 334.6ms TimeCoverageRelationStatistics Valid=384, Invalid=1098, Unknown=0, NotChecked=0, Total=1482 [2021-05-03 16:00:34,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2021-05-03 16:00:35,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 704. [2021-05-03 16:00:35,024 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) [2021-05-03 16:00:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 2345 transitions. [2021-05-03 16:00:35,030 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 2345 transitions. Word has length 28 [2021-05-03 16:00:35,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:35,030 INFO L480 AbstractCegarLoop]: Abstraction has 704 states and 2345 transitions. [2021-05-03 16:00:35,030 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) [2021-05-03 16:00:35,030 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 2345 transitions. [2021-05-03 16:00:35,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-03 16:00:35,033 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:35,033 INFO L551 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] [2021-05-03 16:00:35,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-05-03 16:00:35,249 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:35,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:35,250 INFO L82 PathProgramCache]: Analyzing trace with hash 370873412, now seen corresponding path program 7 times [2021-05-03 16:00:35,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:35,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522161246] [2021-05-03 16:00:35,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:35,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522161246] [2021-05-03 16:00:35,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919669894] [2021-05-03 16:00:35,296 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 [2021-05-03 16:00:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:35,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 16:00:35,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:35,421 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:35,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:35,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-05-03 16:00:35,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260719317] [2021-05-03 16:00:35,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 16:00:35,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:35,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 16:00:35,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-03 16:00:35,423 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) [2021-05-03 16:00:35,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:35,563 INFO L93 Difference]: Finished difference Result 1879 states and 6186 transitions. [2021-05-03 16:00:35,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 16:00:35,564 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 [2021-05-03 16:00:35,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:35,578 INFO L225 Difference]: With dead ends: 1879 [2021-05-03 16:00:35,579 INFO L226 Difference]: Without dead ends: 1673 [2021-05-03 16:00:35,579 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 35.6ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-05-03 16:00:35,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2021-05-03 16:00:35,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1433. [2021-05-03 16:00:35,641 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) [2021-05-03 16:00:35,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 4886 transitions. [2021-05-03 16:00:35,653 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 4886 transitions. Word has length 29 [2021-05-03 16:00:35,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:35,653 INFO L480 AbstractCegarLoop]: Abstraction has 1433 states and 4886 transitions. [2021-05-03 16:00:35,654 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) [2021-05-03 16:00:35,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 4886 transitions. [2021-05-03 16:00:35,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-03 16:00:35,661 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:35,661 INFO L551 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] [2021-05-03 16:00:35,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:00:35,877 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:35,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:35,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1864074648, now seen corresponding path program 8 times [2021-05-03 16:00:35,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:35,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286648250] [2021-05-03 16:00:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:35,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286648250] [2021-05-03 16:00:35,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725685688] [2021-05-03 16:00:35,915 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 [2021-05-03 16:00:35,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 16:00:35,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:00:35,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 16:00:35,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:36,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:36,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-05-03 16:00:36,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692016113] [2021-05-03 16:00:36,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-03 16:00:36,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:36,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-03 16:00:36,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-05-03 16:00:36,027 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) [2021-05-03 16:00:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:36,681 INFO L93 Difference]: Finished difference Result 3885 states and 12614 transitions. [2021-05-03 16:00:36,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-03 16:00:36,682 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 [2021-05-03 16:00:36,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:36,713 INFO L225 Difference]: With dead ends: 3885 [2021-05-03 16:00:36,713 INFO L226 Difference]: Without dead ends: 3731 [2021-05-03 16:00:36,714 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 311.6ms TimeCoverageRelationStatistics Valid=342, Invalid=1064, Unknown=0, NotChecked=0, Total=1406 [2021-05-03 16:00:36,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2021-05-03 16:00:36,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 2319. [2021-05-03 16:00:36,826 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) [2021-05-03 16:00:36,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 8269 transitions. [2021-05-03 16:00:36,843 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 8269 transitions. Word has length 29 [2021-05-03 16:00:36,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:36,844 INFO L480 AbstractCegarLoop]: Abstraction has 2319 states and 8269 transitions. [2021-05-03 16:00:36,844 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) [2021-05-03 16:00:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 8269 transitions. [2021-05-03 16:00:36,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-03 16:00:36,855 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:36,856 INFO L551 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] [2021-05-03 16:00:37,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:00:37,072 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:37,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:37,072 INFO L82 PathProgramCache]: Analyzing trace with hash 647783004, now seen corresponding path program 9 times [2021-05-03 16:00:37,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:37,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772327192] [2021-05-03 16:00:37,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:37,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772327192] [2021-05-03 16:00:37,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506287476] [2021-05-03 16:00:37,102 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 [2021-05-03 16:00:37,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-05-03 16:00:37,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:00:37,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 16:00:37,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:37,214 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:37,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:37,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-05-03 16:00:37,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741534751] [2021-05-03 16:00:37,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-03 16:00:37,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:37,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-03 16:00:37,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-03 16:00:37,221 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) [2021-05-03 16:00:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:37,349 INFO L93 Difference]: Finished difference Result 3632 states and 12765 transitions. [2021-05-03 16:00:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 16:00:37,350 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 [2021-05-03 16:00:37,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:37,382 INFO L225 Difference]: With dead ends: 3632 [2021-05-03 16:00:37,382 INFO L226 Difference]: Without dead ends: 3577 [2021-05-03 16:00:37,382 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 23.9ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-03 16:00:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2021-05-03 16:00:37,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3218. [2021-05-03 16:00:37,507 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) [2021-05-03 16:00:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 11601 transitions. [2021-05-03 16:00:37,527 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 11601 transitions. Word has length 29 [2021-05-03 16:00:37,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:37,527 INFO L480 AbstractCegarLoop]: Abstraction has 3218 states and 11601 transitions. [2021-05-03 16:00:37,527 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) [2021-05-03 16:00:37,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 11601 transitions. [2021-05-03 16:00:37,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-03 16:00:37,542 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:37,542 INFO L551 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] [2021-05-03 16:00:37,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-05-03 16:00:37,769 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:37,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:37,769 INFO L82 PathProgramCache]: Analyzing trace with hash -292340112, now seen corresponding path program 10 times [2021-05-03 16:00:37,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:37,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640106138] [2021-05-03 16:00:37,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:37,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:37,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640106138] [2021-05-03 16:00:37,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060915355] [2021-05-03 16:00:37,811 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 [2021-05-03 16:00:37,849 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 16:00:37,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:00:37,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 16:00:37,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:37,900 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:37,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:37,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-05-03 16:00:37,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600223839] [2021-05-03 16:00:37,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-03 16:00:37,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:37,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-03 16:00:37,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-03 16:00:37,903 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) [2021-05-03 16:00:38,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:38,018 INFO L93 Difference]: Finished difference Result 3810 states and 13405 transitions. [2021-05-03 16:00:38,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 16:00:38,019 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 [2021-05-03 16:00:38,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:38,053 INFO L225 Difference]: With dead ends: 3810 [2021-05-03 16:00:38,053 INFO L226 Difference]: Without dead ends: 3810 [2021-05-03 16:00:38,056 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.6ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-03 16:00:38,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2021-05-03 16:00:38,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3283. [2021-05-03 16:00:38,183 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) [2021-05-03 16:00:38,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 11859 transitions. [2021-05-03 16:00:38,207 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 11859 transitions. Word has length 29 [2021-05-03 16:00:38,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:38,208 INFO L480 AbstractCegarLoop]: Abstraction has 3283 states and 11859 transitions. [2021-05-03 16:00:38,208 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) [2021-05-03 16:00:38,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 11859 transitions. [2021-05-03 16:00:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-03 16:00:38,223 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:38,224 INFO L551 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] [2021-05-03 16:00:38,437 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-05-03 16:00:38,437 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:38,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:38,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1098579396, now seen corresponding path program 11 times [2021-05-03 16:00:38,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:38,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146086915] [2021-05-03 16:00:38,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:38,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146086915] [2021-05-03 16:00:38,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764590343] [2021-05-03 16:00:38,477 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) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:00:38,516 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-05-03 16:00:38,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:00:38,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 16:00:38,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:38,568 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:38,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:38,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-05-03 16:00:38,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320330318] [2021-05-03 16:00:38,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 16:00:38,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:38,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 16:00:38,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-03 16:00:38,570 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) [2021-05-03 16:00:38,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:38,678 INFO L93 Difference]: Finished difference Result 3694 states and 13063 transitions. [2021-05-03 16:00:38,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 16:00:38,678 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 [2021-05-03 16:00:38,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:38,700 INFO L225 Difference]: With dead ends: 3694 [2021-05-03 16:00:38,700 INFO L226 Difference]: Without dead ends: 3694 [2021-05-03 16:00:38,700 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 35.5ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-05-03 16:00:38,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2021-05-03 16:00:38,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3265. [2021-05-03 16:00:38,861 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) [2021-05-03 16:00:38,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 11712 transitions. [2021-05-03 16:00:38,892 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 11712 transitions. Word has length 29 [2021-05-03 16:00:38,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:38,893 INFO L480 AbstractCegarLoop]: Abstraction has 3265 states and 11712 transitions. [2021-05-03 16:00:38,893 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) [2021-05-03 16:00:38,894 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 11712 transitions. [2021-05-03 16:00:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-03 16:00:38,907 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:38,907 INFO L551 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] [2021-05-03 16:00:39,121 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-05-03 16:00:39,121 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:39,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:39,122 INFO L82 PathProgramCache]: Analyzing trace with hash -637233344, now seen corresponding path program 12 times [2021-05-03 16:00:39,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:39,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460653751] [2021-05-03 16:00:39,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:39,166 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:39,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460653751] [2021-05-03 16:00:39,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487485757] [2021-05-03 16:00:39,166 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) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:00:39,206 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-05-03 16:00:39,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:00:39,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 16:00:39,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:39,267 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:39,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:39,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-05-03 16:00:39,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744226705] [2021-05-03 16:00:39,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 16:00:39,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:39,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 16:00:39,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-03 16:00:39,269 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) [2021-05-03 16:00:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:39,420 INFO L93 Difference]: Finished difference Result 6483 states and 22245 transitions. [2021-05-03 16:00:39,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 16:00:39,421 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 [2021-05-03 16:00:39,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:39,462 INFO L225 Difference]: With dead ends: 6483 [2021-05-03 16:00:39,462 INFO L226 Difference]: Without dead ends: 6483 [2021-05-03 16:00:39,462 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 40.0ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-05-03 16:00:39,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6483 states. [2021-05-03 16:00:39,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6483 to 5087. [2021-05-03 16:00:39,667 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) [2021-05-03 16:00:39,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5087 states to 5087 states and 18247 transitions. [2021-05-03 16:00:39,700 INFO L78 Accepts]: Start accepts. Automaton has 5087 states and 18247 transitions. Word has length 31 [2021-05-03 16:00:39,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:39,700 INFO L480 AbstractCegarLoop]: Abstraction has 5087 states and 18247 transitions. [2021-05-03 16:00:39,700 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) [2021-05-03 16:00:39,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5087 states and 18247 transitions. [2021-05-03 16:00:39,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-03 16:00:39,718 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:39,719 INFO L551 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] [2021-05-03 16:00:39,932 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2021-05-03 16:00:39,933 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:39,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:39,933 INFO L82 PathProgramCache]: Analyzing trace with hash 2134533188, now seen corresponding path program 13 times [2021-05-03 16:00:39,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:39,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025535525] [2021-05-03 16:00:39,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:39,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025535525] [2021-05-03 16:00:39,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094223783] [2021-05-03 16:00:39,984 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 [2021-05-03 16:00:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:40,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-03 16:00:40,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:40,089 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 16:00:40,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:00:40,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-05-03 16:00:40,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673041676] [2021-05-03 16:00:40,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-03 16:00:40,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:00:40,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-03 16:00:40,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-05-03 16:00:40,091 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) [2021-05-03 16:00:40,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:00:40,966 INFO L93 Difference]: Finished difference Result 8806 states and 29381 transitions. [2021-05-03 16:00:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-03 16:00:40,967 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 [2021-05-03 16:00:40,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:00:41,022 INFO L225 Difference]: With dead ends: 8806 [2021-05-03 16:00:41,023 INFO L226 Difference]: Without dead ends: 8704 [2021-05-03 16:00:41,023 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 423.5ms TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2021-05-03 16:00:41,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2021-05-03 16:00:41,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 5354. [2021-05-03 16:00:41,277 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) [2021-05-03 16:00:41,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 19308 transitions. [2021-05-03 16:00:41,314 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 19308 transitions. Word has length 31 [2021-05-03 16:00:41,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:00:41,314 INFO L480 AbstractCegarLoop]: Abstraction has 5354 states and 19308 transitions. [2021-05-03 16:00:41,314 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) [2021-05-03 16:00:41,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 19308 transitions. [2021-05-03 16:00:41,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:00:41,335 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:00:41,336 INFO L551 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] [2021-05-03 16:00:41,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:00:41,559 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:00:41,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:00:41,560 INFO L82 PathProgramCache]: Analyzing trace with hash -62749624, now seen corresponding path program 14 times [2021-05-03 16:00:41,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:00:41,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076181899] [2021-05-03 16:00:41,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:00:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:00:42,123 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 47 [2021-05-03 16:00:42,324 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 50 [2021-05-03 16:00:42,444 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 25 [2021-05-03 16:00:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:00:42,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076181899] [2021-05-03 16:00:42,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802789518] [2021-05-03 16:00:42,614 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 [2021-05-03 16:00:42,651 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 16:00:42,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:00:42,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 30 conjunts are in the unsatisfiable core [2021-05-03 16:00:42,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:00:43,093 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 [2021-05-03 16:00:43,095 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,105 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 [2021-05-03 16:00:43,106 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,115 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 [2021-05-03 16:00:43,117 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,126 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 [2021-05-03 16:00:43,128 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,144 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 [2021-05-03 16:00:43,145 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,154 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 [2021-05-03 16:00:43,155 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,169 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 [2021-05-03 16:00:43,171 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,185 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 [2021-05-03 16:00:43,186 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,197 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 [2021-05-03 16:00:43,198 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,212 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 [2021-05-03 16:00:43,213 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,226 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 [2021-05-03 16:00:43,228 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,239 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 [2021-05-03 16:00:43,241 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,258 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 [2021-05-03 16:00:43,259 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,271 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 [2021-05-03 16:00:43,273 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,285 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 [2021-05-03 16:00:43,287 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,299 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 [2021-05-03 16:00:43,301 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:43,773 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-05-03 16:00:43,774 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:43,784 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-05-03 16:00:43,784 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 1 variables, input treesize:1281, output treesize:1265 [2021-05-03 16:00:44,273 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-05-03 16:00:44,556 INFO L446 ElimStorePlain]: Different costs {1=[v_C_14, v_prenex_7, v_prenex_32, v_prenex_10, v_prenex_20, v_prenex_41, v_prenex_14, v_prenex_47, v_prenex_35, v_prenex_23, v_prenex_11, v_prenex_44, v_prenex_29, v_prenex_17, v_prenex_38, v_prenex_26], 3=[v_prenex_8, v_prenex_9, v_prenex_31, v_prenex_30, v_prenex_36, v_prenex_13, v_prenex_34, v_prenex_12, v_prenex_33, v_prenex_18, v_prenex_39, v_prenex_16, v_prenex_15, v_prenex_37, v_prenex_19, v_prenex_5, v_prenex_6, A, B, v_prenex_43, v_prenex_21, v_prenex_42, v_prenex_40, v_prenex_25, v_prenex_46, v_prenex_24, v_prenex_45, v_prenex_22, v_prenex_28, v_prenex_27, v_prenex_49, v_prenex_48]} [2021-05-03 16:00:44,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:44,602 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 30 treesize of output 32 [2021-05-03 16:00:44,604 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:45,269 WARN L205 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-05-03 16:00:45,270 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:45,313 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 [2021-05-03 16:00:45,315 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:45,974 WARN L205 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2021-05-03 16:00:45,974 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:45,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:46,011 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 [2021-05-03 16:00:46,020 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:46,686 WARN L205 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2021-05-03 16:00:46,686 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:46,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:46,721 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 [2021-05-03 16:00:46,723 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:47,361 WARN L205 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2021-05-03 16:00:47,362 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:47,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:47,398 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 [2021-05-03 16:00:47,399 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:48,017 WARN L205 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2021-05-03 16:00:48,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:48,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:48,053 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 [2021-05-03 16:00:48,054 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:48,635 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2021-05-03 16:00:48,635 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:48,670 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 [2021-05-03 16:00:48,672 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:49,268 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2021-05-03 16:00:49,268 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:49,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:49,307 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 [2021-05-03 16:00:49,309 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:49,930 WARN L205 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2021-05-03 16:00:49,930 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:49,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:49,986 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 [2021-05-03 16:00:49,988 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:50,602 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2021-05-03 16:00:50,603 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:50,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:50,636 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 [2021-05-03 16:00:50,638 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:51,270 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2021-05-03 16:00:51,271 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:51,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:51,309 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 [2021-05-03 16:00:51,318 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:51,905 WARN L205 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2021-05-03 16:00:51,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:51,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:51,949 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 [2021-05-03 16:00:51,951 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:52,582 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2021-05-03 16:00:52,583 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:52,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:52,617 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 [2021-05-03 16:00:52,618 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:53,290 WARN L205 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2021-05-03 16:00:53,291 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:53,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:53,322 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 [2021-05-03 16:00:53,324 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:53,935 WARN L205 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 354 [2021-05-03 16:00:53,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:53,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:53,969 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 [2021-05-03 16:00:53,972 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:54,596 WARN L205 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 351 [2021-05-03 16:00:54,597 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:54,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:54,647 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 [2021-05-03 16:00:54,649 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:55,240 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 348 [2021-05-03 16:00:55,241 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:55,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:55,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:55,269 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 [2021-05-03 16:00:55,273 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:55,861 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2021-05-03 16:00:55,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:55,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:55,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:55,887 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 35 [2021-05-03 16:00:55,891 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:56,897 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 339 DAG size of output: 291 [2021-05-03 16:00:56,899 INFO L628 ElimStorePlain]: treesize reduction 191, result has 85.6 percent of original size [2021-05-03 16:00:56,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:56,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:56,920 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 [2021-05-03 16:00:56,922 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:57,398 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2021-05-03 16:00:57,399 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:57,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:57,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:57,430 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 [2021-05-03 16:00:57,434 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:58,334 WARN L205 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 253 [2021-05-03 16:00:58,343 INFO L628 ElimStorePlain]: treesize reduction 83, result has 92.3 percent of original size [2021-05-03 16:00:58,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:58,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:58,368 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 [2021-05-03 16:00:58,370 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:58,833 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2021-05-03 16:00:58,834 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:58,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:58,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:58,864 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 61 treesize of output 39 [2021-05-03 16:00:58,867 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:59,362 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2021-05-03 16:00:59,363 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:59,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:59,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:59,384 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 [2021-05-03 16:00:59,387 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-05-03 16:00:59,839 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-05-03 16:00:59,840 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:00:59,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:59,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:00:59,860 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 [2021-05-03 16:00:59,862 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:00,401 WARN L205 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 184 [2021-05-03 16:01:00,403 INFO L628 ElimStorePlain]: treesize reduction 186, result has 79.6 percent of original size [2021-05-03 16:01:00,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:01:00,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:01:00,416 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 [2021-05-03 16:01:00,419 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:00,753 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 105 [2021-05-03 16:01:00,754 INFO L628 ElimStorePlain]: treesize reduction 289, result has 57.7 percent of original size [2021-05-03 16:01:00,754 INFO L518 ElimStorePlain]: Eliminatee v_prenex_18 vanished before elimination [2021-05-03 16:01:00,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:01:00,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:01:00,764 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 [2021-05-03 16:01:00,774 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:00,902 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-05-03 16:01:00,902 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:00,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:01:00,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:01:00,913 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 59 treesize of output 39 [2021-05-03 16:01:00,915 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:01,018 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-05-03 16:01:01,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:01,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:01:01,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:01:01,029 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 [2021-05-03 16:01:01,032 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:01,123 INFO L628 ElimStorePlain]: treesize reduction 168, result has 47.5 percent of original size [2021-05-03 16:01:01,123 INFO L518 ElimStorePlain]: Eliminatee v_prenex_37 vanished before elimination [2021-05-03 16:01:01,123 INFO L518 ElimStorePlain]: Eliminatee v_prenex_19 vanished before elimination [2021-05-03 16:01:01,124 INFO L518 ElimStorePlain]: Eliminatee v_prenex_5 vanished before elimination [2021-05-03 16:01:01,124 INFO L518 ElimStorePlain]: Eliminatee v_prenex_6 vanished before elimination [2021-05-03 16:01:01,124 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-05-03 16:01:01,124 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-05-03 16:01:01,124 INFO L518 ElimStorePlain]: Eliminatee v_prenex_43 vanished before elimination [2021-05-03 16:01:01,124 INFO L518 ElimStorePlain]: Eliminatee v_prenex_21 vanished before elimination [2021-05-03 16:01:01,124 INFO L518 ElimStorePlain]: Eliminatee v_prenex_42 vanished before elimination [2021-05-03 16:01:01,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:01:01,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:01:01,131 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 [2021-05-03 16:01:01,135 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:01,210 INFO L628 ElimStorePlain]: treesize reduction 7, result has 93.9 percent of original size [2021-05-03 16:01:01,210 INFO L518 ElimStorePlain]: Eliminatee v_prenex_25 vanished before elimination [2021-05-03 16:01:01,210 INFO L518 ElimStorePlain]: Eliminatee v_prenex_46 vanished before elimination [2021-05-03 16:01:01,210 INFO L518 ElimStorePlain]: Eliminatee v_prenex_24 vanished before elimination [2021-05-03 16:01:01,210 INFO L518 ElimStorePlain]: Eliminatee v_prenex_45 vanished before elimination [2021-05-03 16:01:01,210 INFO L518 ElimStorePlain]: Eliminatee v_prenex_22 vanished before elimination [2021-05-03 16:01:01,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_28 vanished before elimination [2021-05-03 16:01:01,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_27 vanished before elimination [2021-05-03 16:01:01,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_49 vanished before elimination [2021-05-03 16:01:01,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_48 vanished before elimination [2021-05-03 16:01:01,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 48 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:01:01,212 INFO L247 ElimStorePlain]: Needed 30 recursive calls to eliminate 48 variables, input treesize:1377, output treesize:107 [2021-05-03 16:01:01,499 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 [2021-05-03 16:01:01,501 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:01,518 INFO L628 ElimStorePlain]: treesize reduction 122, result has 3.9 percent of original size [2021-05-03 16:01:01,519 INFO L518 ElimStorePlain]: Eliminatee C vanished before elimination [2021-05-03 16:01:01,519 INFO L518 ElimStorePlain]: Eliminatee v_prenex_52 vanished before elimination [2021-05-03 16:01:01,519 INFO L518 ElimStorePlain]: Eliminatee v_prenex_51 vanished before elimination [2021-05-03 16:01:01,519 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:01:01,520 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:142, output treesize:5 [2021-05-03 16:01:01,527 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:01:01,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:01:01,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-05-03 16:01:01,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965478522] [2021-05-03 16:01:01,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 16:01:01,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:01:01,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 16:01:01,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-05-03 16:01:01,529 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) [2021-05-03 16:01:01,877 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2021-05-03 16:01:03,129 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-05-03 16:01:03,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:01:03,738 INFO L93 Difference]: Finished difference Result 8320 states and 29218 transitions. [2021-05-03 16:01:03,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 16:01:03,739 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 [2021-05-03 16:01:03,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:01:03,787 INFO L225 Difference]: With dead ends: 8320 [2021-05-03 16:01:03,787 INFO L226 Difference]: Without dead ends: 8229 [2021-05-03 16:01:03,787 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 3018.2ms TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2021-05-03 16:01:03,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2021-05-03 16:01:03,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 5803. [2021-05-03 16:01:03,989 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) [2021-05-03 16:01:04,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 20835 transitions. [2021-05-03 16:01:04,025 INFO L78 Accepts]: Start accepts. Automaton has 5803 states and 20835 transitions. Word has length 33 [2021-05-03 16:01:04,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:01:04,025 INFO L480 AbstractCegarLoop]: Abstraction has 5803 states and 20835 transitions. [2021-05-03 16:01:04,025 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) [2021-05-03 16:01:04,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5803 states and 20835 transitions. [2021-05-03 16:01:04,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:01:04,044 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:01:04,044 INFO L551 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] [2021-05-03 16:01:04,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-05-03 16:01:04,258 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:01:04,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:01:04,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1133562818, now seen corresponding path program 15 times [2021-05-03 16:01:04,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:01:04,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021249839] [2021-05-03 16:01:04,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:01:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:01:04,894 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2021-05-03 16:01:05,079 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2021-05-03 16:01:05,284 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 36 [2021-05-03 16:01:05,501 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 35 [2021-05-03 16:01:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:01:05,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021249839] [2021-05-03 16:01:05,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296319945] [2021-05-03 16:01:05,760 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 [2021-05-03 16:01:05,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-03 16:01:05,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:01:05,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-03 16:01:05,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:01:06,341 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 [2021-05-03 16:01:06,342 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,353 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 [2021-05-03 16:01:06,355 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,361 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 [2021-05-03 16:01:06,362 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,371 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 [2021-05-03 16:01:06,372 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,379 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 [2021-05-03 16:01:06,380 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,393 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 [2021-05-03 16:01:06,394 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,408 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 [2021-05-03 16:01:06,410 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,420 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 [2021-05-03 16:01:06,422 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,432 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 [2021-05-03 16:01:06,434 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,446 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 [2021-05-03 16:01:06,448 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,461 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 [2021-05-03 16:01:06,463 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,477 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 [2021-05-03 16:01:06,479 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,494 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 [2021-05-03 16:01:06,496 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,508 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 [2021-05-03 16:01:06,510 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,522 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 [2021-05-03 16:01:06,524 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,537 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 [2021-05-03 16:01:06,539 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:06,976 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-05-03 16:01:06,977 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:06,982 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-05-03 16:01:06,982 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 1 variables, input treesize:1153, output treesize:1137 [2021-05-03 16:01:07,431 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-05-03 16:01:07,990 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-03 16:01:08,989 WARN L205 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-05-03 16:01:10,970 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 [2021-05-03 16:01:10,975 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:11,012 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 [2021-05-03 16:01:11,017 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:14,609 WARN L205 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 432 DAG size of output: 412 [2021-05-03 16:01:14,611 INFO L628 ElimStorePlain]: treesize reduction 584, result has 74.6 percent of original size [2021-05-03 16:01:14,642 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 [2021-05-03 16:01:14,644 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:16,053 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 411 [2021-05-03 16:01:16,053 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:16,080 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 [2021-05-03 16:01:16,085 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:17,557 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 406 [2021-05-03 16:01:17,558 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:17,584 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 [2021-05-03 16:01:17,594 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:19,041 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 401 [2021-05-03 16:01:19,042 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:19,075 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 25 treesize of output 25 [2021-05-03 16:01:19,078 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:20,499 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 398 [2021-05-03 16:01:20,500 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:20,531 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 [2021-05-03 16:01:20,539 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:22,051 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 392 [2021-05-03 16:01:22,052 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:22,083 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 [2021-05-03 16:01:22,088 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:23,577 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 387 [2021-05-03 16:01:23,578 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:23,613 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 17 treesize of output 19 [2021-05-03 16:01:23,616 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:25,094 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 384 [2021-05-03 16:01:25,095 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:25,133 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 37 treesize of output 25 [2021-05-03 16:01:25,138 INFO L550 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:25,165 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 [2021-05-03 16:01:25,171 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:26,642 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 379 [2021-05-03 16:01:26,643 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:26,678 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 [2021-05-03 16:01:26,682 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:26,708 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 [2021-05-03 16:01:26,715 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:28,080 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 382 [2021-05-03 16:01:28,080 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:28,117 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 [2021-05-03 16:01:28,123 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:28,158 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 [2021-05-03 16:01:28,164 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:29,612 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 383 [2021-05-03 16:01:29,614 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:29,659 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 [2021-05-03 16:01:29,666 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:29,704 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 [2021-05-03 16:01:29,713 INFO L550 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:31,073 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 376 [2021-05-03 16:01:31,074 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:31,114 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 [2021-05-03 16:01:31,120 INFO L550 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:31,146 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 52 treesize of output 36 [2021-05-03 16:01:31,151 INFO L550 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:32,448 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 378 [2021-05-03 16:01:32,449 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:32,485 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 [2021-05-03 16:01:32,505 INFO L550 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:32,542 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 37 treesize of output 25 [2021-05-03 16:01:32,548 INFO L550 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:33,900 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 373 [2021-05-03 16:01:33,900 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:33,943 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 37 treesize of output 25 [2021-05-03 16:01:33,950 INFO L550 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:33,979 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 30 [2021-05-03 16:01:33,986 INFO L550 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:35,077 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 369 [2021-05-03 16:01:35,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:35,116 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 [2021-05-03 16:01:35,119 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:35,158 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 21 treesize of output 21 [2021-05-03 16:01:35,161 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:36,424 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 364 [2021-05-03 16:01:36,425 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:36,459 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 36 treesize of output 24 [2021-05-03 16:01:36,463 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:37,737 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 356 [2021-05-03 16:01:37,739 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:37,776 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 [2021-05-03 16:01:37,779 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:37,813 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 [2021-05-03 16:01:37,815 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:39,114 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 351 [2021-05-03 16:01:39,115 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:39,154 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 [2021-05-03 16:01:39,156 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:40,466 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 348 [2021-05-03 16:01:40,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:40,493 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 [2021-05-03 16:01:40,498 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:41,923 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 341 [2021-05-03 16:01:41,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:41,960 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 [2021-05-03 16:01:41,968 INFO L550 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:41,995 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 [2021-05-03 16:01:42,009 INFO L550 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:43,127 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 344 [2021-05-03 16:01:43,128 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:43,155 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 45 treesize of output 29 [2021-05-03 16:01:43,174 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:45,054 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 334 DAG size of output: 286 [2021-05-03 16:01:45,056 INFO L628 ElimStorePlain]: treesize reduction 148, result has 88.1 percent of original size [2021-05-03 16:01:45,084 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 37 treesize of output 25 [2021-05-03 16:01:45,096 INFO L550 ElimStorePlain]: Start of recursive call 35: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:45,119 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 [2021-05-03 16:01:45,125 INFO L550 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:46,097 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 281 [2021-05-03 16:01:46,098 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:46,130 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 [2021-05-03 16:01:46,131 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:46,166 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 [2021-05-03 16:01:46,168 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:47,130 WARN L205 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2021-05-03 16:01:47,131 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:47,165 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 [2021-05-03 16:01:47,169 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:47,204 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 [2021-05-03 16:01:47,216 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:48,196 WARN L205 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2021-05-03 16:01:48,198 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:48,238 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 [2021-05-03 16:01:48,240 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:48,275 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 [2021-05-03 16:01:48,278 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:49,143 WARN L205 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-05-03 16:01:49,145 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:49,145 INFO L518 ElimStorePlain]: Eliminatee v_prenex_83 vanished before elimination [2021-05-03 16:01:49,178 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 49 treesize of output 35 [2021-05-03 16:01:49,182 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:49,247 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 [2021-05-03 16:01:49,252 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:51,212 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 261 DAG size of output: 260 [2021-05-03 16:01:51,213 INFO L628 ElimStorePlain]: treesize reduction 49, result has 95.1 percent of original size [2021-05-03 16:01:51,244 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 [2021-05-03 16:01:51,261 INFO L550 ElimStorePlain]: Start of recursive call 45: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:51,290 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 [2021-05-03 16:01:51,298 INFO L550 ElimStorePlain]: Start of recursive call 46: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:52,261 WARN L205 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2021-05-03 16:01:52,264 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:52,288 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 [2021-05-03 16:01:52,297 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:53,117 WARN L205 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 141 [2021-05-03 16:01:53,119 INFO L628 ElimStorePlain]: treesize reduction 389, result has 56.4 percent of original size [2021-05-03 16:01:53,135 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 [2021-05-03 16:01:53,140 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:53,469 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-05-03 16:01:53,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:53,470 INFO L518 ElimStorePlain]: Eliminatee v_prenex_81 vanished before elimination [2021-05-03 16:01:53,484 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 [2021-05-03 16:01:53,492 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:53,995 WARN L205 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2021-05-03 16:01:53,996 INFO L628 ElimStorePlain]: treesize reduction 105, result has 76.8 percent of original size [2021-05-03 16:01:53,996 INFO L518 ElimStorePlain]: Eliminatee v_prenex_80 vanished before elimination [2021-05-03 16:01:54,014 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 [2021-05-03 16:01:54,016 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:54,232 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-05-03 16:01:54,236 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:54,257 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 [2021-05-03 16:01:54,266 INFO L550 ElimStorePlain]: Start of recursive call 51: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:54,488 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-05-03 16:01:54,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:54,505 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 25 treesize of output 25 [2021-05-03 16:01:54,508 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:54,715 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-05-03 16:01:54,716 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:54,716 INFO L518 ElimStorePlain]: Eliminatee v_prenex_64 vanished before elimination [2021-05-03 16:01:54,716 INFO L518 ElimStorePlain]: Eliminatee v_prenex_85 vanished before elimination [2021-05-03 16:01:54,716 INFO L518 ElimStorePlain]: Eliminatee v_prenex_63 vanished before elimination [2021-05-03 16:01:54,716 INFO L518 ElimStorePlain]: Eliminatee v_prenex_84 vanished before elimination [2021-05-03 16:01:54,716 INFO L518 ElimStorePlain]: Eliminatee v_prenex_62 vanished before elimination [2021-05-03 16:01:54,727 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 [2021-05-03 16:01:54,734 INFO L550 ElimStorePlain]: Start of recursive call 53: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:01:54,939 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-05-03 16:01:54,941 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:54,957 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 21 treesize of output 21 [2021-05-03 16:01:54,965 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:55,161 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-05-03 16:01:55,163 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:55,178 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 51 treesize of output 35 [2021-05-03 16:01:55,182 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:55,378 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-05-03 16:01:55,378 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:55,379 INFO L518 ElimStorePlain]: Eliminatee v_prenex_89 vanished before elimination [2021-05-03 16:01:55,390 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 [2021-05-03 16:01:55,395 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:55,642 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-05-03 16:01:55,643 INFO L628 ElimStorePlain]: treesize reduction 65, result has 74.7 percent of original size [2021-05-03 16:01:55,651 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 38 treesize of output 24 [2021-05-03 16:01:55,654 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:55,758 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-05-03 16:01:55,759 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:01:55,774 INFO L550 ElimStorePlain]: Start of recursive call 1: 48 dim-1 vars, End of recursive call: and 5 xjuncts. [2021-05-03 16:01:55,775 INFO L247 ElimStorePlain]: Needed 57 recursive calls to eliminate 48 variables, input treesize:2337, output treesize:132 [2021-05-03 16:01:55,976 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-05-03 16:01:56,692 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-05-03 16:01:56,693 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 [2021-05-03 16:01:56,713 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:56,768 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-05-03 16:01:56,768 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 26 [2021-05-03 16:01:56,784 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:01:57,006 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 23 [2021-05-03 16:01:57,007 INFO L628 ElimStorePlain]: treesize reduction 235, result has 15.8 percent of original size [2021-05-03 16:01:57,008 INFO L518 ElimStorePlain]: Eliminatee v_prenex_98 vanished before elimination [2021-05-03 16:01:57,008 INFO L518 ElimStorePlain]: Eliminatee v_prenex_100 vanished before elimination [2021-05-03 16:01:57,008 INFO L518 ElimStorePlain]: Eliminatee v_prenex_99 vanished before elimination [2021-05-03 16:01:57,013 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-05-03 16:01:57,014 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:301, output treesize:50 [2021-05-03 16:01:57,177 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:01:57,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:01:57,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-05-03 16:01:57,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708259344] [2021-05-03 16:01:57,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-03 16:01:57,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:01:57,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-03 16:01:57,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=585, Unknown=0, NotChecked=0, Total=702 [2021-05-03 16:01:57,180 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) [2021-05-03 16:01:57,516 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2021-05-03 16:01:57,744 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2021-05-03 16:01:58,179 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-05-03 16:01:58,703 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2021-05-03 16:01:59,381 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-05-03 16:02:00,003 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2021-05-03 16:02:01,314 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-05-03 16:02:01,819 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-05-03 16:02:02,310 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2021-05-03 16:02:02,737 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2021-05-03 16:02:02,981 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2021-05-03 16:02:03,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:02:03,242 INFO L93 Difference]: Finished difference Result 8411 states and 29291 transitions. [2021-05-03 16:02:03,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-03 16:02:03,245 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 [2021-05-03 16:02:03,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:02:03,286 INFO L225 Difference]: With dead ends: 8411 [2021-05-03 16:02:03,287 INFO L226 Difference]: Without dead ends: 8158 [2021-05-03 16:02:03,287 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 8020.0ms TimeCoverageRelationStatistics Valid=261, Invalid=1379, Unknown=0, NotChecked=0, Total=1640 [2021-05-03 16:02:03,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2021-05-03 16:02:03,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 5828. [2021-05-03 16:02:03,520 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) [2021-05-03 16:02:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5828 states to 5828 states and 20927 transitions. [2021-05-03 16:02:03,554 INFO L78 Accepts]: Start accepts. Automaton has 5828 states and 20927 transitions. Word has length 33 [2021-05-03 16:02:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:02:03,554 INFO L480 AbstractCegarLoop]: Abstraction has 5828 states and 20927 transitions. [2021-05-03 16:02:03,554 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) [2021-05-03 16:02:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5828 states and 20927 transitions. [2021-05-03 16:02:03,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:02:03,574 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:02:03,574 INFO L551 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] [2021-05-03 16:02:03,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:02:03,775 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:02:03,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:02:03,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1389073446, now seen corresponding path program 16 times [2021-05-03 16:02:03,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:02:03,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088928964] [2021-05-03 16:02:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:02:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:02:04,808 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 51 [2021-05-03 16:02:05,304 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2021-05-03 16:02:05,476 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2021-05-03 16:02:05,774 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2021-05-03 16:02:05,943 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 33 [2021-05-03 16:02:06,060 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:02:06,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088928964] [2021-05-03 16:02:06,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838851341] [2021-05-03 16:02:06,061 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 [2021-05-03 16:02:06,101 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 16:02:06,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:02:06,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-03 16:02:06,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:02:06,480 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 [2021-05-03 16:02:06,482 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:06,494 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 [2021-05-03 16:02:06,495 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:06,507 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 [2021-05-03 16:02:06,509 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:06,523 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 [2021-05-03 16:02:06,525 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:06,732 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-03 16:02:06,733 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:06,735 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:02:06,736 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:277, output treesize:273 [2021-05-03 16:02:06,973 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-03 16:02:07,665 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-05-03 16:02:08,343 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 50 treesize of output 36 [2021-05-03 16:02:08,353 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:02:08,381 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 [2021-05-03 16:02:08,390 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:02:09,532 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 229 [2021-05-03 16:02:09,533 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:09,572 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 [2021-05-03 16:02:09,575 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:09,607 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 [2021-05-03 16:02:09,610 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:10,717 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 228 [2021-05-03 16:02:10,718 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:10,750 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 50 treesize of output 34 [2021-05-03 16:02:10,758 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:02:10,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:02:10,786 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:02:11,875 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 224 [2021-05-03 16:02:11,876 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:11,904 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 [2021-05-03 16:02:11,908 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:11,926 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 [2021-05-03 16:02:11,931 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:13,036 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 220 [2021-05-03 16:02:13,037 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:13,068 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 [2021-05-03 16:02:13,072 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:13,092 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 [2021-05-03 16:02:13,098 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:14,985 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 208 DAG size of output: 201 [2021-05-03 16:02:14,986 INFO L628 ElimStorePlain]: treesize reduction 108, result has 89.4 percent of original size [2021-05-03 16:02:15,019 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 [2021-05-03 16:02:15,037 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:15,070 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 [2021-05-03 16:02:15,073 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:15,850 WARN L205 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2021-05-03 16:02:15,850 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:15,869 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 [2021-05-03 16:02:15,878 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:02:16,645 WARN L205 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-05-03 16:02:16,646 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:16,661 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 [2021-05-03 16:02:16,665 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:02:17,367 WARN L205 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-05-03 16:02:17,367 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:17,402 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 [2021-05-03 16:02:17,406 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:17,432 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 [2021-05-03 16:02:17,434 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:18,150 WARN L205 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-05-03 16:02:18,150 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:18,176 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 [2021-05-03 16:02:18,177 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:18,928 WARN L205 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-05-03 16:02:18,929 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:18,953 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 51 treesize of output 35 [2021-05-03 16:02:18,956 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:18,973 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 [2021-05-03 16:02:18,977 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:19,640 WARN L205 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-05-03 16:02:19,641 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:19,665 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 [2021-05-03 16:02:19,670 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:19,687 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 [2021-05-03 16:02:19,693 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:20,350 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 73 [2021-05-03 16:02:20,351 INFO L628 ElimStorePlain]: treesize reduction 428, result has 44.6 percent of original size [2021-05-03 16:02:20,362 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 50 treesize of output 36 [2021-05-03 16:02:20,367 INFO L550 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:02:20,377 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 [2021-05-03 16:02:20,385 INFO L550 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:02:20,607 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-05-03 16:02:20,608 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:20,608 INFO L518 ElimStorePlain]: Eliminatee v_prenex_116 vanished before elimination [2021-05-03 16:02:20,627 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 [2021-05-03 16:02:20,641 INFO L550 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:02:20,652 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 [2021-05-03 16:02:20,662 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:02:20,885 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-05-03 16:02:20,885 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:20,886 INFO L518 ElimStorePlain]: Eliminatee v_prenex_117 vanished before elimination [2021-05-03 16:02:20,895 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 [2021-05-03 16:02:20,903 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:20,918 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 [2021-05-03 16:02:20,922 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:21,078 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-05-03 16:02:21,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:21,079 INFO L518 ElimStorePlain]: Eliminatee v_prenex_118 vanished before elimination [2021-05-03 16:02:21,079 INFO L518 ElimStorePlain]: Eliminatee v_prenex_107 vanished before elimination [2021-05-03 16:02:21,079 INFO L518 ElimStorePlain]: Eliminatee v_prenex_108 vanished before elimination [2021-05-03 16:02:21,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:02:21,103 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:21,113 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 [2021-05-03 16:02:21,116 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:21,241 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-03 16:02:21,242 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:21,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_119 vanished before elimination [2021-05-03 16:02:21,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_109 vanished before elimination [2021-05-03 16:02:21,256 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 [2021-05-03 16:02:21,259 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:21,267 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 [2021-05-03 16:02:21,271 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:21,397 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 32 [2021-05-03 16:02:21,398 INFO L628 ElimStorePlain]: treesize reduction 57, result has 65.2 percent of original size [2021-05-03 16:02:21,401 INFO L550 ElimStorePlain]: Start of recursive call 1: 24 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:02:21,401 INFO L247 ElimStorePlain]: Needed 32 recursive calls to eliminate 24 variables, input treesize:1185, output treesize:93 [2021-05-03 16:02:21,786 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2021-05-03 16:02:21,870 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 [2021-05-03 16:02:21,871 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:21,874 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-05-03 16:02:21,875 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:21,897 INFO L628 ElimStorePlain]: treesize reduction 108, result has 4.4 percent of original size [2021-05-03 16:02:21,898 INFO L518 ElimStorePlain]: Eliminatee v_prenex_122 vanished before elimination [2021-05-03 16:02:21,898 INFO L518 ElimStorePlain]: Eliminatee v_prenex_123 vanished before elimination [2021-05-03 16:02:21,898 INFO L518 ElimStorePlain]: Eliminatee v_prenex_124 vanished before elimination [2021-05-03 16:02:21,898 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:02:21,898 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:155, output treesize:5 [2021-05-03 16:02:21,907 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:02:21,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:02:21,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-05-03 16:02:21,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392082096] [2021-05-03 16:02:21,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 16:02:21,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:02:21,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 16:02:21,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-05-03 16:02:21,909 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) [2021-05-03 16:02:22,214 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2021-05-03 16:02:22,520 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 49 [2021-05-03 16:02:23,350 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2021-05-03 16:02:24,508 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2021-05-03 16:02:24,929 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 28 [2021-05-03 16:02:25,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:02:25,838 INFO L93 Difference]: Finished difference Result 10027 states and 34871 transitions. [2021-05-03 16:02:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-03 16:02:25,839 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 [2021-05-03 16:02:25,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:02:25,876 INFO L225 Difference]: With dead ends: 10027 [2021-05-03 16:02:25,876 INFO L226 Difference]: Without dead ends: 9878 [2021-05-03 16:02:25,877 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 5518.1ms TimeCoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2021-05-03 16:02:25,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9878 states. [2021-05-03 16:02:26,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9878 to 5995. [2021-05-03 16:02:26,100 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) [2021-05-03 16:02:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5995 states to 5995 states and 21471 transitions. [2021-05-03 16:02:26,138 INFO L78 Accepts]: Start accepts. Automaton has 5995 states and 21471 transitions. Word has length 33 [2021-05-03 16:02:26,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:02:26,139 INFO L480 AbstractCegarLoop]: Abstraction has 5995 states and 21471 transitions. [2021-05-03 16:02:26,139 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) [2021-05-03 16:02:26,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5995 states and 21471 transitions. [2021-05-03 16:02:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:02:26,164 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:02:26,164 INFO L551 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] [2021-05-03 16:02:26,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable313 [2021-05-03 16:02:26,381 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:02:26,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:02:26,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1709581408, now seen corresponding path program 17 times [2021-05-03 16:02:26,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:02:26,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955907705] [2021-05-03 16:02:26,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:02:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:02:27,068 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 33 [2021-05-03 16:02:27,534 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 39 [2021-05-03 16:02:27,929 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2021-05-03 16:02:28,105 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:02:28,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955907705] [2021-05-03 16:02:28,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761265624] [2021-05-03 16:02:28,106 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 [2021-05-03 16:02:28,137 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-05-03 16:02:28,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:02:28,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-03 16:02:28,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:02:28,569 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 [2021-05-03 16:02:28,571 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:28,587 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 [2021-05-03 16:02:28,590 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:28,605 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 [2021-05-03 16:02:28,607 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:28,619 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 [2021-05-03 16:02:28,621 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:28,787 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-03 16:02:28,788 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:28,791 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:02:28,791 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:241, output treesize:237 [2021-05-03 16:02:28,999 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-03 16:02:29,771 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-05-03 16:02:30,676 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-05-03 16:02:32,358 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2021-05-03 16:02:33,222 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_150, v_prenex_162, v_C_20, v_prenex_141, v_prenex_153, v_prenex_165, v_prenex_144, v_prenex_156, v_prenex_147, v_prenex_159], 3=[v_prenex_160, v_prenex_161, v_prenex_140, v_prenex_163, v_prenex_164, v_prenex_142, v_prenex_143, v_prenex_166, v_prenex_167, v_prenex_145, v_prenex_146, v_prenex_125, v_prenex_126, v_prenex_148, v_prenex_149, v_prenex_127, v_prenex_128, v_prenex_151, v_prenex_152, v_prenex_130, v_prenex_131, v_prenex_154, v_prenex_132, v_prenex_155, v_prenex_133, v_prenex_134, v_prenex_135, v_prenex_157, v_prenex_136, v_prenex_158, v_prenex_137, v_prenex_138, v_prenex_139, v_prenex_129, A, B]} [2021-05-03 16:02:33,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:33,277 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 43 treesize of output 41 [2021-05-03 16:02:33,282 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:35,485 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 431 [2021-05-03 16:02:35,486 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:35,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:35,537 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 [2021-05-03 16:02:35,541 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:35,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:35,588 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 [2021-05-03 16:02:35,591 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:37,727 WARN L205 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 428 [2021-05-03 16:02:37,729 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:37,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:37,802 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 [2021-05-03 16:02:37,807 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:37,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:37,862 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 [2021-05-03 16:02:37,867 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:37,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:37,928 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 [2021-05-03 16:02:37,932 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:37,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:37,985 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 [2021-05-03 16:02:37,989 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:38,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:38,058 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 [2021-05-03 16:02:38,062 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:38,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:38,120 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 [2021-05-03 16:02:38,124 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:38,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:38,183 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 [2021-05-03 16:02:38,187 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:38,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:38,245 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 [2021-05-03 16:02:38,249 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:38,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:38,305 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 [2021-05-03 16:02:38,310 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:38,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:38,364 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 [2021-05-03 16:02:38,367 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:38,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:38,422 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 37 treesize of output 35 [2021-05-03 16:02:38,426 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:38,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:38,478 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 [2021-05-03 16:02:38,481 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:40,572 WARN L205 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 423 [2021-05-03 16:02:40,573 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:40,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:40,630 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 43 treesize of output 41 [2021-05-03 16:02:40,634 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:42,850 WARN L205 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 421 [2021-05-03 16:02:42,851 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:42,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:42,896 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 [2021-05-03 16:02:42,900 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:45,082 WARN L205 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 418 [2021-05-03 16:02:45,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:45,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:45,126 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 [2021-05-03 16:02:45,131 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:45,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:45,176 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 [2021-05-03 16:02:45,179 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:47,459 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification that was a NOOP. DAG size: 415 [2021-05-03 16:02:47,461 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:47,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:47,511 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 [2021-05-03 16:02:47,515 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:50,037 WARN L205 SmtUtils]: Spent 2.52 s on a formula simplification that was a NOOP. DAG size: 412 [2021-05-03 16:02:50,038 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:50,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:50,081 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 43 treesize of output 41 [2021-05-03 16:02:50,084 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:52,501 WARN L205 SmtUtils]: Spent 2.42 s on a formula simplification that was a NOOP. DAG size: 410 [2021-05-03 16:02:52,502 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:52,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:52,552 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 43 treesize of output 41 [2021-05-03 16:02:52,557 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:54,961 WARN L205 SmtUtils]: Spent 2.40 s on a formula simplification that was a NOOP. DAG size: 407 [2021-05-03 16:02:54,962 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:54,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:55,020 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 [2021-05-03 16:02:55,024 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:55,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:55,083 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 [2021-05-03 16:02:55,095 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:57,609 WARN L205 SmtUtils]: Spent 2.51 s on a formula simplification that was a NOOP. DAG size: 404 [2021-05-03 16:02:57,610 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:02:57,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:57,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:57,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:02:57,673 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-05-03 16:02:57,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:57,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:02:57,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:02:57,718 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:00,044 WARN L205 SmtUtils]: Spent 2.33 s on a formula simplification that was a NOOP. DAG size: 401 [2021-05-03 16:03:00,046 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:00,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:00,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:00,108 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 [2021-05-03 16:03:00,114 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:00,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:00,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:00,169 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 [2021-05-03 16:03:00,175 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:04,588 WARN L205 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 388 DAG size of output: 365 [2021-05-03 16:03:04,591 INFO L628 ElimStorePlain]: treesize reduction 106, result has 94.5 percent of original size [2021-05-03 16:03:04,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:04,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:04,626 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 [2021-05-03 16:03:04,630 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:06,791 WARN L205 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 356 [2021-05-03 16:03:06,791 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:06,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:06,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:06,845 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 [2021-05-03 16:03:06,851 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:06,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:06,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:06,891 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 55 treesize of output 39 [2021-05-03 16:03:06,897 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:08,942 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 353 [2021-05-03 16:03:08,944 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:08,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:08,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:09,002 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 [2021-05-03 16:03:09,007 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:09,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:09,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:09,043 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 [2021-05-03 16:03:09,051 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:10,791 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 335 DAG size of output: 177 [2021-05-03 16:03:10,794 INFO L628 ElimStorePlain]: treesize reduction 890, result has 47.1 percent of original size [2021-05-03 16:03:10,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:10,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:10,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 49 [2021-05-03 16:03:10,826 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:11,465 WARN L205 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-05-03 16:03:11,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:11,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:11,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:11,493 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 [2021-05-03 16:03:11,500 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:12,209 WARN L205 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 86 [2021-05-03 16:03:12,211 INFO L628 ElimStorePlain]: treesize reduction 321, result has 55.5 percent of original size [2021-05-03 16:03:12,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_166 vanished before elimination [2021-05-03 16:03:12,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_167 vanished before elimination [2021-05-03 16:03:12,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_145 vanished before elimination [2021-05-03 16:03:12,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_146 vanished before elimination [2021-05-03 16:03:12,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_125 vanished before elimination [2021-05-03 16:03:12,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_126 vanished before elimination [2021-05-03 16:03:12,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_148 vanished before elimination [2021-05-03 16:03:12,212 INFO L518 ElimStorePlain]: Eliminatee v_prenex_149 vanished before elimination [2021-05-03 16:03:12,212 INFO L518 ElimStorePlain]: Eliminatee v_prenex_127 vanished before elimination [2021-05-03 16:03:12,212 INFO L518 ElimStorePlain]: Eliminatee v_prenex_128 vanished before elimination [2021-05-03 16:03:12,212 INFO L518 ElimStorePlain]: Eliminatee v_prenex_151 vanished before elimination [2021-05-03 16:03:12,212 INFO L518 ElimStorePlain]: Eliminatee v_prenex_152 vanished before elimination [2021-05-03 16:03:12,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:12,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:12,240 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 [2021-05-03 16:03:12,243 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:12,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:12,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:12,263 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 [2021-05-03 16:03:12,269 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:12,582 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-05-03 16:03:12,583 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:12,583 INFO L518 ElimStorePlain]: Eliminatee v_prenex_131 vanished before elimination [2021-05-03 16:03:12,583 INFO L518 ElimStorePlain]: Eliminatee v_prenex_154 vanished before elimination [2021-05-03 16:03:12,583 INFO L518 ElimStorePlain]: Eliminatee v_prenex_132 vanished before elimination [2021-05-03 16:03:12,583 INFO L518 ElimStorePlain]: Eliminatee v_prenex_155 vanished before elimination [2021-05-03 16:03:12,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:12,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:12,600 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 [2021-05-03 16:03:12,604 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:12,845 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-05-03 16:03:12,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:12,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:12,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:12,875 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 46 treesize of output 26 [2021-05-03 16:03:12,881 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:13,222 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2021-05-03 16:03:13,223 INFO L628 ElimStorePlain]: treesize reduction 110, result has 60.6 percent of original size [2021-05-03 16:03:13,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:13,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:13,233 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 [2021-05-03 16:03:13,237 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:13,357 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-05-03 16:03:13,359 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:13,359 INFO L518 ElimStorePlain]: Eliminatee v_prenex_157 vanished before elimination [2021-05-03 16:03:13,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:13,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:13,373 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 [2021-05-03 16:03:13,378 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:13,648 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2021-05-03 16:03:13,649 INFO L628 ElimStorePlain]: treesize reduction 36, result has 68.4 percent of original size [2021-05-03 16:03:13,650 INFO L518 ElimStorePlain]: Eliminatee v_prenex_158 vanished before elimination [2021-05-03 16:03:13,650 INFO L518 ElimStorePlain]: Eliminatee v_prenex_137 vanished before elimination [2021-05-03 16:03:13,650 INFO L518 ElimStorePlain]: Eliminatee v_prenex_138 vanished before elimination [2021-05-03 16:03:13,650 INFO L518 ElimStorePlain]: Eliminatee v_prenex_139 vanished before elimination [2021-05-03 16:03:13,650 INFO L518 ElimStorePlain]: Eliminatee v_prenex_129 vanished before elimination [2021-05-03 16:03:13,650 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-05-03 16:03:13,650 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-05-03 16:03:13,654 INFO L550 ElimStorePlain]: Start of recursive call 1: 46 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-05-03 16:03:13,654 INFO L247 ElimStorePlain]: Needed 42 recursive calls to eliminate 46 variables, input treesize:1987, output treesize:78 [2021-05-03 16:03:13,936 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 [2021-05-03 16:03:13,942 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:13,951 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 15 treesize of output 11 [2021-05-03 16:03:13,957 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:13,985 INFO L628 ElimStorePlain]: treesize reduction 73, result has 6.4 percent of original size [2021-05-03 16:03:13,986 INFO L518 ElimStorePlain]: Eliminatee v_prenex_168 vanished before elimination [2021-05-03 16:03:13,986 INFO L518 ElimStorePlain]: Eliminatee v_prenex_169 vanished before elimination [2021-05-03 16:03:13,988 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:03:13,989 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:108, output treesize:5 [2021-05-03 16:03:14,011 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:03:14,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:03:14,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2021-05-03 16:03:14,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488088878] [2021-05-03 16:03:14,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 16:03:14,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:03:14,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 16:03:14,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-05-03 16:03:14,014 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) [2021-05-03 16:03:14,707 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2021-05-03 16:03:15,091 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2021-05-03 16:03:16,143 WARN L205 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2021-05-03 16:03:18,971 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2021-05-03 16:03:20,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:03:20,618 INFO L93 Difference]: Finished difference Result 8627 states and 29955 transitions. [2021-05-03 16:03:20,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 16:03:20,621 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 [2021-05-03 16:03:20,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:03:20,657 INFO L225 Difference]: With dead ends: 8627 [2021-05-03 16:03:20,657 INFO L226 Difference]: Without dead ends: 8310 [2021-05-03 16:03:20,659 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 8927.8ms TimeCoverageRelationStatistics Valid=204, Invalid=986, Unknown=0, NotChecked=0, Total=1190 [2021-05-03 16:03:20,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2021-05-03 16:03:20,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 6027. [2021-05-03 16:03:20,875 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) [2021-05-03 16:03:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6027 states to 6027 states and 21552 transitions. [2021-05-03 16:03:20,912 INFO L78 Accepts]: Start accepts. Automaton has 6027 states and 21552 transitions. Word has length 33 [2021-05-03 16:03:20,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:03:20,913 INFO L480 AbstractCegarLoop]: Abstraction has 6027 states and 21552 transitions. [2021-05-03 16:03:20,913 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) [2021-05-03 16:03:20,913 INFO L276 IsEmpty]: Start isEmpty. Operand 6027 states and 21552 transitions. [2021-05-03 16:03:20,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:03:20,932 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:03:20,932 INFO L551 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] [2021-05-03 16:03:21,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable353 [2021-05-03 16:03:21,148 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:03:21,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:03:21,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1839447846, now seen corresponding path program 18 times [2021-05-03 16:03:21,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:03:21,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790663316] [2021-05-03 16:03:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:03:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:03:21,603 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2021-05-03 16:03:22,597 WARN L205 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 57 [2021-05-03 16:03:23,355 WARN L205 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 51 [2021-05-03 16:03:24,308 WARN L205 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 57 [2021-05-03 16:03:25,009 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 47 [2021-05-03 16:03:25,315 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 22 [2021-05-03 16:03:25,515 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:03:25,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790663316] [2021-05-03 16:03:25,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566686014] [2021-05-03 16:03:25,516 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 [2021-05-03 16:03:25,547 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-05-03 16:03:25,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:03:25,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-05-03 16:03:25,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:03:26,103 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 [2021-05-03 16:03:26,105 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:26,113 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 [2021-05-03 16:03:26,115 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:26,130 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 [2021-05-03 16:03:26,145 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:26,159 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 18 treesize of output 17 [2021-05-03 16:03:26,162 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:26,408 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-05-03 16:03:26,409 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:26,413 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:03:26,414 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:269, output treesize:265 [2021-05-03 16:03:26,719 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-05-03 16:03:26,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:26,767 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 [2021-05-03 16:03:26,770 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:27,088 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-05-03 16:03:27,089 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:27,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:27,118 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 [2021-05-03 16:03:27,123 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:27,430 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-05-03 16:03:27,430 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:27,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:27,456 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 [2021-05-03 16:03:27,459 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:27,745 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-05-03 16:03:27,747 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:27,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:27,773 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 [2021-05-03 16:03:27,777 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:28,114 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-03 16:03:28,115 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:28,120 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:03:28,121 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:301, output treesize:297 [2021-05-03 16:03:28,476 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-03 16:03:29,306 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 [2021-05-03 16:03:29,313 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:29,345 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 [2021-05-03 16:03:29,353 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:29,387 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 47 treesize of output 35 [2021-05-03 16:03:29,394 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:29,413 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 [2021-05-03 16:03:29,421 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:30,835 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 126 [2021-05-03 16:03:30,836 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:30,865 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 [2021-05-03 16:03:30,873 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:30,908 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 [2021-05-03 16:03:30,916 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:30,949 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 [2021-05-03 16:03:30,956 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:30,966 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 [2021-05-03 16:03:30,969 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:31,925 WARN L205 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 50 [2021-05-03 16:03:31,926 INFO L628 ElimStorePlain]: treesize reduction 598, result has 36.5 percent of original size [2021-05-03 16:03:31,927 INFO L518 ElimStorePlain]: Eliminatee v_prenex_173 vanished before elimination [2021-05-03 16:03:31,927 INFO L518 ElimStorePlain]: Eliminatee v_prenex_174 vanished before elimination [2021-05-03 16:03:31,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:03:31,957 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:31,986 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 [2021-05-03 16:03:31,993 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:32,016 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 51 treesize of output 35 [2021-05-03 16:03:32,024 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:32,037 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 [2021-05-03 16:03:32,042 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:32,335 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-05-03 16:03:32,336 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:32,365 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 [2021-05-03 16:03:32,372 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:32,401 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 [2021-05-03 16:03:32,407 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:32,430 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 [2021-05-03 16:03:32,439 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:32,450 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 [2021-05-03 16:03:32,460 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:32,696 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2021-05-03 16:03:32,698 INFO L628 ElimStorePlain]: treesize reduction 26, result has 79.5 percent of original size [2021-05-03 16:03:32,698 INFO L518 ElimStorePlain]: Eliminatee v_prenex_177 vanished before elimination [2021-05-03 16:03:32,698 INFO L518 ElimStorePlain]: Eliminatee v_prenex_178 vanished before elimination [2021-05-03 16:03:32,702 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:03:32,702 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:1153, output treesize:93 [2021-05-03 16:03:33,409 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2021-05-03 16:03:33,508 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 [2021-05-03 16:03:33,520 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:33,574 INFO L628 ElimStorePlain]: treesize reduction 108, result has 4.4 percent of original size [2021-05-03 16:03:33,574 INFO L518 ElimStorePlain]: Eliminatee v_prenex_181 vanished before elimination [2021-05-03 16:03:33,574 INFO L518 ElimStorePlain]: Eliminatee C vanished before elimination [2021-05-03 16:03:33,574 INFO L518 ElimStorePlain]: Eliminatee v_prenex_179 vanished before elimination [2021-05-03 16:03:33,577 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:03:33,577 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:128, output treesize:5 [2021-05-03 16:03:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:03:33,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:03:33,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-05-03 16:03:33,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878446589] [2021-05-03 16:03:33,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 16:03:33,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:03:33,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 16:03:33,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2021-05-03 16:03:33,602 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) [2021-05-03 16:03:34,349 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 47 [2021-05-03 16:03:34,884 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 55 [2021-05-03 16:03:36,325 WARN L205 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2021-05-03 16:03:37,508 WARN L205 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-05-03 16:03:38,817 WARN L205 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2021-05-03 16:03:39,398 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2021-05-03 16:03:40,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:03:40,925 INFO L93 Difference]: Finished difference Result 8561 states and 29979 transitions. [2021-05-03 16:03:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 16:03:40,929 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 [2021-05-03 16:03:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:03:40,972 INFO L225 Difference]: With dead ends: 8561 [2021-05-03 16:03:40,973 INFO L226 Difference]: Without dead ends: 8478 [2021-05-03 16:03:40,973 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 9768.4ms TimeCoverageRelationStatistics Valid=188, Invalid=934, Unknown=0, NotChecked=0, Total=1122 [2021-05-03 16:03:40,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2021-05-03 16:03:41,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 6135. [2021-05-03 16:03:41,183 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) [2021-05-03 16:03:41,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 21934 transitions. [2021-05-03 16:03:41,222 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 21934 transitions. Word has length 33 [2021-05-03 16:03:41,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:03:41,222 INFO L480 AbstractCegarLoop]: Abstraction has 6135 states and 21934 transitions. [2021-05-03 16:03:41,222 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) [2021-05-03 16:03:41,222 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 21934 transitions. [2021-05-03 16:03:41,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:03:41,241 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:03:41,241 INFO L551 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] [2021-05-03 16:03:41,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable403 [2021-05-03 16:03:41,457 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:03:41,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:03:41,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1784385830, now seen corresponding path program 19 times [2021-05-03 16:03:41,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:03:41,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077692928] [2021-05-03 16:03:41,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:03:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:03:41,936 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2021-05-03 16:03:42,397 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 41 [2021-05-03 16:03:42,757 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 42 [2021-05-03 16:03:43,185 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2021-05-03 16:03:43,581 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2021-05-03 16:03:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:03:43,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077692928] [2021-05-03 16:03:43,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186714554] [2021-05-03 16:03:43,941 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 [2021-05-03 16:03:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:03:43,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-03 16:03:43,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:03:44,519 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 [2021-05-03 16:03:44,523 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:44,539 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 [2021-05-03 16:03:44,542 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:44,558 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 [2021-05-03 16:03:44,564 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:44,575 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 [2021-05-03 16:03:44,578 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:44,864 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-05-03 16:03:44,865 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:44,869 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:03:44,870 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:277, output treesize:273 [2021-05-03 16:03:45,248 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-05-03 16:03:45,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:45,333 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 [2021-05-03 16:03:45,338 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:45,654 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-05-03 16:03:45,655 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:45,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:45,679 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 [2021-05-03 16:03:45,683 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:45,996 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-05-03 16:03:45,998 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:46,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:46,021 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 [2021-05-03 16:03:46,025 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:46,351 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-05-03 16:03:46,353 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:46,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:46,377 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 [2021-05-03 16:03:46,383 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:46,677 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-03 16:03:46,678 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:46,681 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:03:46,682 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:309, output treesize:305 [2021-05-03 16:03:47,058 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-03 16:03:47,892 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-05-03 16:03:50,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,243 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 [2021-05-03 16:03:50,247 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:50,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,283 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 [2021-05-03 16:03:50,288 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:50,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,323 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 [2021-05-03 16:03:50,329 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:50,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,368 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 [2021-05-03 16:03:50,372 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:50,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,410 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 [2021-05-03 16:03:50,415 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:50,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,453 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 [2021-05-03 16:03:50,458 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:50,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,499 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 [2021-05-03 16:03:50,503 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:50,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:50,526 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 [2021-05-03 16:03:50,531 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:54,866 WARN L205 SmtUtils]: Spent 4.33 s on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2021-05-03 16:03:54,868 INFO L628 ElimStorePlain]: treesize reduction 588, result has 76.1 percent of original size [2021-05-03 16:03:54,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:54,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:54,907 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 48 treesize of output 32 [2021-05-03 16:03:54,912 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:54,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:54,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:54,952 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 [2021-05-03 16:03:54,958 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:54,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:54,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,012 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 [2021-05-03 16:03:55,018 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:55,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,057 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 [2021-05-03 16:03:55,061 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:55,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,103 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 [2021-05-03 16:03:55,109 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:55,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,150 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 [2021-05-03 16:03:55,156 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:55,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,200 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 [2021-05-03 16:03:55,205 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:55,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:55,232 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 [2021-05-03 16:03:55,239 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:57,197 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification that was a NOOP. DAG size: 125 [2021-05-03 16:03:57,199 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:03:57,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,239 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 [2021-05-03 16:03:57,245 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:57,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,287 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 52 treesize of output 30 [2021-05-03 16:03:57,293 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:57,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:03:57,356 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:57,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,405 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 31 [2021-05-03 16:03:57,412 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:57,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,453 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 [2021-05-03 16:03:57,460 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:57,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,503 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 [2021-05-03 16:03:57,511 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:57,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,553 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 [2021-05-03 16:03:57,559 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:57,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:57,585 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 [2021-05-03 16:03:57,592 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:58,591 WARN L205 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 44 [2021-05-03 16:03:58,592 INFO L628 ElimStorePlain]: treesize reduction 1097, result has 20.5 percent of original size [2021-05-03 16:03:58,592 INFO L518 ElimStorePlain]: Eliminatee v_prenex_185 vanished before elimination [2021-05-03 16:03:58,592 INFO L518 ElimStorePlain]: Eliminatee v_prenex_186 vanished before elimination [2021-05-03 16:03:58,592 INFO L518 ElimStorePlain]: Eliminatee v_prenex_187 vanished before elimination [2021-05-03 16:03:58,592 INFO L518 ElimStorePlain]: Eliminatee v_prenex_188 vanished before elimination [2021-05-03 16:03:58,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:58,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:58,620 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 [2021-05-03 16:03:58,626 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:58,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:58,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:58,655 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 [2021-05-03 16:03:58,660 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:58,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:58,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:58,693 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 [2021-05-03 16:03:58,700 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:58,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:58,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:03:58,718 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 [2021-05-03 16:03:58,724 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:59,083 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2021-05-03 16:03:59,085 INFO L628 ElimStorePlain]: treesize reduction 64, result has 54.9 percent of original size [2021-05-03 16:03:59,088 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-05-03 16:03:59,088 INFO L247 ElimStorePlain]: Needed 29 recursive calls to eliminate 8 variables, input treesize:2625, output treesize:78 [2021-05-03 16:03:59,442 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 [2021-05-03 16:03:59,447 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:03:59,502 INFO L628 ElimStorePlain]: treesize reduction 88, result has 5.4 percent of original size [2021-05-03 16:03:59,503 INFO L518 ElimStorePlain]: Eliminatee v_prenex_192 vanished before elimination [2021-05-03 16:03:59,503 INFO L518 ElimStorePlain]: Eliminatee C vanished before elimination [2021-05-03 16:03:59,505 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:03:59,506 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:108, output treesize:5 [2021-05-03 16:03:59,534 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:03:59,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:03:59,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-05-03 16:03:59,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427427408] [2021-05-03 16:03:59,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 16:03:59,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:03:59,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 16:03:59,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2021-05-03 16:03:59,536 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) [2021-05-03 16:04:00,103 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2021-05-03 16:04:00,654 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2021-05-03 16:04:02,029 WARN L205 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2021-05-03 16:04:03,219 WARN L205 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2021-05-03 16:04:04,929 WARN L205 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2021-05-03 16:04:07,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:04:07,216 INFO L93 Difference]: Finished difference Result 9093 states and 31725 transitions. [2021-05-03 16:04:07,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 16:04:07,218 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 [2021-05-03 16:04:07,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:04:07,259 INFO L225 Difference]: With dead ends: 9093 [2021-05-03 16:04:07,259 INFO L226 Difference]: Without dead ends: 8883 [2021-05-03 16:04:07,260 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 8164.2ms TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2021-05-03 16:04:07,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8883 states. [2021-05-03 16:04:07,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8883 to 6225. [2021-05-03 16:04:07,503 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) [2021-05-03 16:04:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6225 states to 6225 states and 22224 transitions. [2021-05-03 16:04:07,543 INFO L78 Accepts]: Start accepts. Automaton has 6225 states and 22224 transitions. Word has length 33 [2021-05-03 16:04:07,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:04:07,544 INFO L480 AbstractCegarLoop]: Abstraction has 6225 states and 22224 transitions. [2021-05-03 16:04:07,544 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) [2021-05-03 16:04:07,544 INFO L276 IsEmpty]: Start isEmpty. Operand 6225 states and 22224 transitions. [2021-05-03 16:04:07,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:04:07,573 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:04:07,573 INFO L551 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] [2021-05-03 16:04:07,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable465 [2021-05-03 16:04:07,789 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:04:07,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:04:07,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1751058778, now seen corresponding path program 20 times [2021-05-03 16:04:07,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:04:07,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141626927] [2021-05-03 16:04:07,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:04:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:04:08,273 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 20 [2021-05-03 16:04:08,608 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2021-05-03 16:04:08,959 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2021-05-03 16:04:09,452 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2021-05-03 16:04:09,917 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 48 [2021-05-03 16:04:10,137 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 22 [2021-05-03 16:04:10,405 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 19 [2021-05-03 16:04:10,524 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:04:10,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141626927] [2021-05-03 16:04:10,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391629899] [2021-05-03 16:04:10,524 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 [2021-05-03 16:04:10,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 16:04:10,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:04:10,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-03 16:04:10,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:04:11,045 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-03 16:04:11,123 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 [2021-05-03 16:04:11,128 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:11,148 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 [2021-05-03 16:04:11,152 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:11,170 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 [2021-05-03 16:04:11,177 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:11,196 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 [2021-05-03 16:04:11,200 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:11,559 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-05-03 16:04:11,561 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:11,564 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:04:11,564 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:277, output treesize:273 [2021-05-03 16:04:12,008 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-05-03 16:04:12,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:12,075 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 [2021-05-03 16:04:12,081 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:12,443 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-05-03 16:04:12,444 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:12,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:12,471 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 [2021-05-03 16:04:12,477 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:12,795 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-05-03 16:04:12,796 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:12,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:12,819 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 [2021-05-03 16:04:12,824 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:13,111 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-05-03 16:04:13,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:13,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:13,136 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 [2021-05-03 16:04:13,141 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:13,432 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-03 16:04:13,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:13,436 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:04:13,436 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:309, output treesize:305 [2021-05-03 16:04:13,907 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-03 16:04:14,892 WARN L205 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-05-03 16:04:15,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:15,018 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 45 treesize of output 29 [2021-05-03 16:04:15,023 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:15,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:15,049 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 [2021-05-03 16:04:15,058 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:15,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:15,079 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 [2021-05-03 16:04:15,086 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:16,522 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-05-03 16:04:16,524 INFO L628 ElimStorePlain]: treesize reduction 234, result has 72.4 percent of original size [2021-05-03 16:04:16,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:16,545 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 [2021-05-03 16:04:16,553 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:16,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:16,574 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 [2021-05-03 16:04:16,582 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:16,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:16,600 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 [2021-05-03 16:04:16,607 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:17,249 WARN L205 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-03 16:04:17,250 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:17,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:17,273 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 [2021-05-03 16:04:17,281 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:17,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:17,298 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 [2021-05-03 16:04:17,305 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:17,893 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-05-03 16:04:17,894 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:17,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:17,917 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 [2021-05-03 16:04:17,925 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:17,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:17,940 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 [2021-05-03 16:04:17,947 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:18,480 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-05-03 16:04:18,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:18,490 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-05-03 16:04:18,491 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 4 variables, input treesize:909, output treesize:443 [2021-05-03 16:04:19,151 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-05-03 16:04:21,451 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 17 [2021-05-03 16:04:21,461 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:21,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:04:21,513 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:21,556 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 27 treesize of output 17 [2021-05-03 16:04:21,562 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:21,587 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 [2021-05-03 16:04:21,594 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:25,038 WARN L205 SmtUtils]: Spent 3.44 s on a formula simplification that was a NOOP. DAG size: 236 [2021-05-03 16:04:25,040 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:25,080 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 [2021-05-03 16:04:25,088 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:25,129 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 29 treesize of output 17 [2021-05-03 16:04:25,134 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:25,188 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 [2021-05-03 16:04:25,195 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:25,221 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 29 treesize of output 17 [2021-05-03 16:04:25,230 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:28,456 WARN L205 SmtUtils]: Spent 3.22 s on a formula simplification that was a NOOP. DAG size: 225 [2021-05-03 16:04:28,457 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:28,500 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 [2021-05-03 16:04:28,507 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:28,531 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 [2021-05-03 16:04:28,540 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:31,941 WARN L205 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 214 DAG size of output: 162 [2021-05-03 16:04:31,944 INFO L628 ElimStorePlain]: treesize reduction 728, result has 52.4 percent of original size [2021-05-03 16:04:31,961 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 [2021-05-03 16:04:31,967 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:33,215 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 155 [2021-05-03 16:04:33,216 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:33,232 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 [2021-05-03 16:04:33,238 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:34,340 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 148 [2021-05-03 16:04:34,341 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:34,355 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 [2021-05-03 16:04:34,361 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:34,705 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 5 [2021-05-03 16:04:34,707 INFO L628 ElimStorePlain]: treesize reduction 733, result has 0.7 percent of original size [2021-05-03 16:04:34,707 INFO L518 ElimStorePlain]: Eliminatee v_prenex_202 vanished before elimination [2021-05-03 16:04:34,707 INFO L518 ElimStorePlain]: Eliminatee v_prenex_213 vanished before elimination [2021-05-03 16:04:34,707 INFO L518 ElimStorePlain]: Eliminatee v_prenex_203 vanished before elimination [2021-05-03 16:04:34,707 INFO L518 ElimStorePlain]: Eliminatee v_prenex_214 vanished before elimination [2021-05-03 16:04:34,707 INFO L518 ElimStorePlain]: Eliminatee v_prenex_215 vanished before elimination [2021-05-03 16:04:34,707 INFO L518 ElimStorePlain]: Eliminatee v_prenex_204 vanished before elimination [2021-05-03 16:04:34,707 INFO L518 ElimStorePlain]: Eliminatee v_prenex_216 vanished before elimination [2021-05-03 16:04:34,707 INFO L518 ElimStorePlain]: Eliminatee v_prenex_205 vanished before elimination [2021-05-03 16:04:34,707 INFO L518 ElimStorePlain]: Eliminatee v_prenex_206 vanished before elimination [2021-05-03 16:04:34,708 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-05-03 16:04:34,708 INFO L518 ElimStorePlain]: Eliminatee v_prenex_207 vanished before elimination [2021-05-03 16:04:34,708 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-05-03 16:04:34,708 INFO L518 ElimStorePlain]: Eliminatee v_prenex_208 vanished before elimination [2021-05-03 16:04:34,708 INFO L518 ElimStorePlain]: Eliminatee v_prenex_209 vanished before elimination [2021-05-03 16:04:34,717 INFO L550 ElimStorePlain]: Start of recursive call 1: 20 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:04:34,717 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 20 variables, input treesize:1841, output treesize:5 [2021-05-03 16:04:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:04:34,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:04:34,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-05-03 16:04:34,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746892095] [2021-05-03 16:04:34,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 16:04:34,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:04:34,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 16:04:34,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2021-05-03 16:04:34,782 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) [2021-05-03 16:04:35,335 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2021-05-03 16:04:35,818 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2021-05-03 16:04:37,100 WARN L205 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2021-05-03 16:04:38,191 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-05-03 16:04:39,509 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2021-05-03 16:04:40,483 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-05-03 16:04:41,549 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-05-03 16:04:42,321 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-05-03 16:04:42,811 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-05-03 16:04:42,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:04:42,981 INFO L93 Difference]: Finished difference Result 8764 states and 30577 transitions. [2021-05-03 16:04:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-03 16:04:42,983 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 [2021-05-03 16:04:42,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:04:43,003 INFO L225 Difference]: With dead ends: 8764 [2021-05-03 16:04:43,003 INFO L226 Difference]: Without dead ends: 8632 [2021-05-03 16:04:43,004 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 10557.7ms TimeCoverageRelationStatistics Valid=217, Invalid=839, Unknown=0, NotChecked=0, Total=1056 [2021-05-03 16:04:43,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8632 states. [2021-05-03 16:04:43,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8632 to 6218. [2021-05-03 16:04:43,146 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) [2021-05-03 16:04:43,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 22201 transitions. [2021-05-03 16:04:43,173 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 22201 transitions. Word has length 33 [2021-05-03 16:04:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:04:43,173 INFO L480 AbstractCegarLoop]: Abstraction has 6218 states and 22201 transitions. [2021-05-03 16:04:43,173 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) [2021-05-03 16:04:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 22201 transitions. [2021-05-03 16:04:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:04:43,188 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:04:43,188 INFO L551 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] [2021-05-03 16:04:43,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable601 [2021-05-03 16:04:43,414 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:04:43,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:04:43,415 INFO L82 PathProgramCache]: Analyzing trace with hash 207179588, now seen corresponding path program 21 times [2021-05-03 16:04:43,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:04:43,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732541991] [2021-05-03 16:04:43,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:04:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:04:44,774 WARN L205 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 44 [2021-05-03 16:04:45,283 WARN L205 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 46 [2021-05-03 16:04:45,846 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 53 [2021-05-03 16:04:46,386 WARN L205 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 50 [2021-05-03 16:04:46,780 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 24 [2021-05-03 16:04:46,983 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 21 [2021-05-03 16:04:47,296 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 19 [2021-05-03 16:04:47,581 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 13 [2021-05-03 16:04:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:04:47,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732541991] [2021-05-03 16:04:47,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534665464] [2021-05-03 16:04:47,637 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 [2021-05-03 16:04:47,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-05-03 16:04:47,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:04:47,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 34 conjunts are in the unsatisfiable core [2021-05-03 16:04:47,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:04:48,198 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-03 16:04:48,402 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-05-03 16:04:48,464 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 [2021-05-03 16:04:48,466 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:48,480 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 [2021-05-03 16:04:48,482 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:48,496 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 [2021-05-03 16:04:48,501 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:48,515 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 [2021-05-03 16:04:48,519 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:48,870 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-05-03 16:04:48,871 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:48,875 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:04:48,875 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:289, output treesize:285 [2021-05-03 16:04:49,312 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-05-03 16:04:49,928 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-05-03 16:04:50,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:50,067 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 [2021-05-03 16:04:50,072 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:50,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:50,100 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 43 treesize of output 41 [2021-05-03 16:04:50,106 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:51,140 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-05-03 16:04:51,141 INFO L628 ElimStorePlain]: treesize reduction 251, result has 66.1 percent of original size [2021-05-03 16:04:51,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:51,165 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 43 treesize of output 41 [2021-05-03 16:04:51,169 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:51,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:51,187 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 [2021-05-03 16:04:51,192 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:51,720 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-05-03 16:04:51,721 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:51,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:51,751 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 50 treesize of output 44 [2021-05-03 16:04:51,755 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:51,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:51,777 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 43 treesize of output 41 [2021-05-03 16:04:51,783 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:52,284 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-05-03 16:04:52,285 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:52,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:52,304 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 [2021-05-03 16:04:52,308 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:52,838 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-05-03 16:04:52,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:52,841 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-05-03 16:04:52,842 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:737, output treesize:515 [2021-05-03 16:04:53,507 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-05-03 16:04:54,248 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-05-03 16:04:55,035 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-05-03 16:04:55,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:55,641 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-05-03 16:04:55,642 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 44 treesize of output 50 [2021-05-03 16:04:55,655 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:04:55,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:55,738 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:55,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 57 [2021-05-03 16:04:55,761 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-05-03 16:04:58,538 WARN L205 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2021-05-03 16:04:58,539 INFO L628 ElimStorePlain]: treesize reduction 262, result has 79.2 percent of original size [2021-05-03 16:04:58,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:58,622 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:04:58,623 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 34 treesize of output 44 [2021-05-03 16:04:58,637 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-05-03 16:04:58,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:04:58,654 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 [2021-05-03 16:04:58,662 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:01,261 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2021-05-03 16:05:01,263 INFO L628 ElimStorePlain]: treesize reduction 34, result has 96.6 percent of original size [2021-05-03 16:05:01,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:05:01,288 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 42 treesize of output 32 [2021-05-03 16:05:01,294 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:01,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:05:01,398 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-05-03 16:05:01,398 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 49 [2021-05-03 16:05:01,411 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:02,710 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 87 [2021-05-03 16:05:02,711 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:05:02,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:05:02,737 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 [2021-05-03 16:05:02,746 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:02,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:05:02,871 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-05-03 16:05:02,871 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 [2021-05-03 16:05:02,886 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:04,125 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 80 [2021-05-03 16:05:04,127 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:05:04,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:05:04,152 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 [2021-05-03 16:05:04,162 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:04,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:05:04,272 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-05-03 16:05:04,272 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 [2021-05-03 16:05:04,287 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:05,452 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 72 [2021-05-03 16:05:05,454 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:05:05,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:05:05,480 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 [2021-05-03 16:05:05,489 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:05,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:05:05,607 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-05-03 16:05:05,608 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 [2021-05-03 16:05:05,621 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:06,843 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 65 [2021-05-03 16:05:06,844 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:05:06,876 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 6 dim-1 vars, End of recursive call: and 11 xjuncts. [2021-05-03 16:05:06,876 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 7 variables, input treesize:1239, output treesize:978 [2021-05-03 16:05:08,889 WARN L205 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2021-05-03 16:05:09,741 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-05-03 16:05:12,023 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 [2021-05-03 16:05:12,028 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:12,064 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 [2021-05-03 16:05:12,070 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:12,107 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 [2021-05-03 16:05:12,112 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:12,135 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 [2021-05-03 16:05:12,141 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:19,660 WARN L205 SmtUtils]: Spent 7.52 s on a formula simplification. DAG size of input: 276 DAG size of output: 275 [2021-05-03 16:05:19,661 INFO L628 ElimStorePlain]: treesize reduction 56, result has 97.7 percent of original size [2021-05-03 16:05:19,708 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 [2021-05-03 16:05:19,714 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:19,761 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 [2021-05-03 16:05:19,768 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:19,813 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 [2021-05-03 16:05:19,820 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:19,842 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 [2021-05-03 16:05:19,848 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:23,675 WARN L205 SmtUtils]: Spent 3.83 s on a formula simplification that was a NOOP. DAG size: 263 [2021-05-03 16:05:23,677 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:05:23,721 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 [2021-05-03 16:05:23,728 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:23,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:05:23,778 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:23,826 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 [2021-05-03 16:05:23,832 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:23,862 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 [2021-05-03 16:05:23,869 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:31,092 WARN L205 SmtUtils]: Spent 7.22 s on a formula simplification. DAG size of input: 255 DAG size of output: 252 [2021-05-03 16:05:31,094 INFO L628 ElimStorePlain]: treesize reduction 54, result has 97.4 percent of original size [2021-05-03 16:05:31,132 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 [2021-05-03 16:05:31,137 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:31,181 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 [2021-05-03 16:05:31,187 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:31,226 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 [2021-05-03 16:05:31,231 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:31,255 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 29 treesize of output 17 [2021-05-03 16:05:31,261 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:37,888 WARN L205 SmtUtils]: Spent 6.63 s on a formula simplification. DAG size of input: 244 DAG size of output: 241 [2021-05-03 16:05:37,889 INFO L628 ElimStorePlain]: treesize reduction 54, result has 97.3 percent of original size [2021-05-03 16:05:37,926 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 [2021-05-03 16:05:37,934 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:37,955 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 [2021-05-03 16:05:37,961 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-05-03 16:05:39,086 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 231 DAG size of output: 5 [2021-05-03 16:05:39,088 INFO L628 ElimStorePlain]: treesize reduction 1872, result has 0.3 percent of original size [2021-05-03 16:05:39,088 INFO L518 ElimStorePlain]: Eliminatee v_prenex_243 vanished before elimination [2021-05-03 16:05:39,088 INFO L518 ElimStorePlain]: Eliminatee v_prenex_232 vanished before elimination [2021-05-03 16:05:39,088 INFO L518 ElimStorePlain]: Eliminatee v_prenex_244 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_233 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_234 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_235 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_236 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_225 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_237 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_226 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_238 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_227 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_228 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_239 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee v_prenex_229 vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-05-03 16:05:39,089 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-05-03 16:05:39,093 INFO L550 ElimStorePlain]: Start of recursive call 1: 22 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:05:39,093 INFO L247 ElimStorePlain]: Needed 19 recursive calls to eliminate 22 variables, input treesize:2561, output treesize:5 [2021-05-03 16:05:39,167 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:05:39,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:05:39,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-05-03 16:05:39,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300961296] [2021-05-03 16:05:39,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 16:05:39,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:05:39,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 16:05:39,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2021-05-03 16:05:39,168 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) [2021-05-03 16:05:41,612 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2021-05-03 16:05:43,663 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 77 DAG size of output: 47 [2021-05-03 16:05:45,380 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-05-03 16:05:47,250 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2021-05-03 16:05:49,129 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-05-03 16:05:50,439 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2021-05-03 16:05:52,452 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2021-05-03 16:05:54,452 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-05-03 16:05:56,428 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-05-03 16:05:58,654 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2021-05-03 16:05:58,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:05:58,775 INFO L93 Difference]: Finished difference Result 7875 states and 27587 transitions. [2021-05-03 16:05:58,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-03 16:05:58,779 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 [2021-05-03 16:05:58,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:05:58,801 INFO L225 Difference]: With dead ends: 7875 [2021-05-03 16:05:58,802 INFO L226 Difference]: Without dead ends: 7744 [2021-05-03 16:05:58,802 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 26699.6ms TimeCoverageRelationStatistics Valid=278, Invalid=1204, Unknown=0, NotChecked=0, Total=1482 [2021-05-03 16:05:58,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7744 states. [2021-05-03 16:05:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7744 to 6202. [2021-05-03 16:05:58,962 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) [2021-05-03 16:05:58,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 22159 transitions. [2021-05-03 16:05:58,991 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 22159 transitions. Word has length 33 [2021-05-03 16:05:58,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:05:58,991 INFO L480 AbstractCegarLoop]: Abstraction has 6202 states and 22159 transitions. [2021-05-03 16:05:58,992 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) [2021-05-03 16:05:58,992 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 22159 transitions. [2021-05-03 16:05:59,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:05:59,003 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:05:59,003 INFO L551 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] [2021-05-03 16:05:59,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable729,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:05:59,204 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:05:59,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:05:59,205 INFO L82 PathProgramCache]: Analyzing trace with hash -320803294, now seen corresponding path program 22 times [2021-05-03 16:05:59,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:05:59,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323276747] [2021-05-03 16:05:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:05:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:05:59,597 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 19 [2021-05-03 16:05:59,726 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 22 [2021-05-03 16:05:59,872 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-05-03 16:06:00,971 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 87 DAG size of output: 49 [2021-05-03 16:06:02,202 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 90 DAG size of output: 53 [2021-05-03 16:06:02,619 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 28 [2021-05-03 16:06:02,849 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 22 [2021-05-03 16:06:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:06:03,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323276747] [2021-05-03 16:06:03,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808233147] [2021-05-03 16:06:03,149 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 [2021-05-03 16:06:03,179 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 16:06:03,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:06:03,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-03 16:06:03,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:06:03,725 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 [2021-05-03 16:06:03,732 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:03,805 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:06:03,809 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:06:03,809 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-05-03 16:06:04,208 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-05-03 16:06:04,785 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-05-03 16:06:06,702 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 50 treesize of output 36 [2021-05-03 16:06:06,716 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:06,750 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 50 treesize of output 36 [2021-05-03 16:06:06,764 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:06,799 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 [2021-05-03 16:06:06,813 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:06,845 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 [2021-05-03 16:06:06,860 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:06,899 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 [2021-05-03 16:06:06,912 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:06,949 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 [2021-05-03 16:06:06,962 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:07,004 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 [2021-05-03 16:06:07,017 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:07,049 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 [2021-05-03 16:06:07,062 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:07,103 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 [2021-05-03 16:06:07,117 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:07,154 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 [2021-05-03 16:06:07,169 INFO L550 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:07,219 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 [2021-05-03 16:06:07,235 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:07,278 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 [2021-05-03 16:06:07,292 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:07,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:06:07,352 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:07,395 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 50 treesize of output 36 [2021-05-03 16:06:07,409 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:07,460 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 [2021-05-03 16:06:07,473 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:07,491 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 [2021-05-03 16:06:07,504 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:09,616 WARN L205 SmtUtils]: Spent 2.11 s on a formula simplification that was a NOOP. DAG size: 144 [2021-05-03 16:06:09,619 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:06:09,660 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 50 treesize of output 32 [2021-05-03 16:06:09,675 INFO L550 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:09,722 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 [2021-05-03 16:06:09,737 INFO L550 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:09,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:06:09,794 INFO L550 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:09,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:06:09,860 INFO L550 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:09,923 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 [2021-05-03 16:06:09,937 INFO L550 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:09,988 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 52 treesize of output 34 [2021-05-03 16:06:10,003 INFO L550 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:10,053 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 50 treesize of output 34 [2021-05-03 16:06:10,066 INFO L550 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:10,108 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 [2021-05-03 16:06:10,122 INFO L550 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:10,169 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 [2021-05-03 16:06:10,182 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:10,225 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 52 treesize of output 34 [2021-05-03 16:06:10,239 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:10,286 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 [2021-05-03 16:06:10,301 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:10,348 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 [2021-05-03 16:06:10,363 INFO L550 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:10,409 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 [2021-05-03 16:06:10,425 INFO L550 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:10,468 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 [2021-05-03 16:06:10,482 INFO L550 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:10,524 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 [2021-05-03 16:06:10,537 INFO L550 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:10,556 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 48 treesize of output 32 [2021-05-03 16:06:10,569 INFO L550 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:14,275 WARN L205 SmtUtils]: Spent 3.71 s on a formula simplification. DAG size of input: 175 DAG size of output: 172 [2021-05-03 16:06:14,278 INFO L628 ElimStorePlain]: treesize reduction 13, result has 97.4 percent of original size [2021-05-03 16:06:14,321 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 [2021-05-03 16:06:14,328 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,377 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 [2021-05-03 16:06:14,384 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,434 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 [2021-05-03 16:06:14,442 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,488 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 [2021-05-03 16:06:14,495 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,548 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 [2021-05-03 16:06:14,555 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,606 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 [2021-05-03 16:06:14,613 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,664 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 [2021-05-03 16:06:14,673 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,720 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 [2021-05-03 16:06:14,726 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,779 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 [2021-05-03 16:06:14,786 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,835 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 [2021-05-03 16:06:14,842 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,891 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 [2021-05-03 16:06:14,899 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:14,953 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 [2021-05-03 16:06:14,961 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:15,012 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 [2021-05-03 16:06:15,020 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:15,071 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 [2021-05-03 16:06:15,078 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:15,128 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 [2021-05-03 16:06:15,136 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:15,176 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 [2021-05-03 16:06:15,182 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:16,158 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-05-03 16:06:16,160 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:06:16,171 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 9 xjuncts. [2021-05-03 16:06:16,172 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 3 variables, input treesize:1153, output treesize:211 [2021-05-03 16:06:16,825 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2021-05-03 16:06:17,577 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2021-05-03 16:06:17,736 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 [2021-05-03 16:06:17,743 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:17,755 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 [2021-05-03 16:06:17,764 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:17,832 INFO L628 ElimStorePlain]: treesize reduction 86, result has 5.5 percent of original size [2021-05-03 16:06:17,833 INFO L518 ElimStorePlain]: Eliminatee v_prenex_245 vanished before elimination [2021-05-03 16:06:17,833 INFO L518 ElimStorePlain]: Eliminatee v_prenex_246 vanished before elimination [2021-05-03 16:06:17,833 INFO L518 ElimStorePlain]: Eliminatee v_prenex_247 vanished before elimination [2021-05-03 16:06:17,837 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:06:17,837 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:128, output treesize:5 [2021-05-03 16:06:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:06:17,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:06:17,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-05-03 16:06:17,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714643939] [2021-05-03 16:06:17,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 16:06:17,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:06:17,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 16:06:17,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2021-05-03 16:06:17,890 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) [2021-05-03 16:06:18,735 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-05-03 16:06:19,355 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2021-05-03 16:06:20,497 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-05-03 16:06:21,814 WARN L205 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2021-05-03 16:06:23,470 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2021-05-03 16:06:25,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:06:25,275 INFO L93 Difference]: Finished difference Result 8633 states and 30105 transitions. [2021-05-03 16:06:25,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 16:06:25,280 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 [2021-05-03 16:06:25,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:06:25,307 INFO L225 Difference]: With dead ends: 8633 [2021-05-03 16:06:25,307 INFO L226 Difference]: Without dead ends: 8590 [2021-05-03 16:06:25,308 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 9423.8ms TimeCoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2021-05-03 16:06:25,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2021-05-03 16:06:25,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 6280. [2021-05-03 16:06:25,454 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) [2021-05-03 16:06:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 22407 transitions. [2021-05-03 16:06:25,487 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 22407 transitions. Word has length 33 [2021-05-03 16:06:25,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:06:25,487 INFO L480 AbstractCegarLoop]: Abstraction has 6280 states and 22407 transitions. [2021-05-03 16:06:25,487 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) [2021-05-03 16:06:25,487 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 22407 transitions. [2021-05-03 16:06:25,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:06:25,499 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:06:25,500 INFO L551 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] [2021-05-03 16:06:25,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable886 [2021-05-03 16:06:25,700 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:06:25,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:06:25,701 INFO L82 PathProgramCache]: Analyzing trace with hash 875509148, now seen corresponding path program 23 times [2021-05-03 16:06:25,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:06:25,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558314880] [2021-05-03 16:06:25,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:06:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:06:26,143 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 21 [2021-05-03 16:06:26,312 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-05-03 16:06:27,080 WARN L205 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 44 [2021-05-03 16:06:27,406 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2021-05-03 16:06:27,548 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 27 [2021-05-03 16:06:27,924 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:06:27,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558314880] [2021-05-03 16:06:27,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324072002] [2021-05-03 16:06:27,924 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 [2021-05-03 16:06:27,955 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-05-03 16:06:27,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:06:27,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-05-03 16:06:27,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:06:28,598 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 [2021-05-03 16:06:28,603 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:06:28,682 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:06:28,685 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:06:28,686 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:46, output treesize:45 [2021-05-03 16:06:29,191 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-05-03 16:06:29,820 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-05-03 16:06:30,748 WARN L205 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-03 16:06:31,654 WARN L205 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-05-03 16:06:34,549 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 [2021-05-03 16:06:34,562 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:34,592 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 [2021-05-03 16:06:34,604 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:34,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:06:34,648 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:34,685 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 52 treesize of output 36 [2021-05-03 16:06:34,697 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:34,727 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 [2021-05-03 16:06:34,739 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:34,775 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 [2021-05-03 16:06:34,787 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:34,828 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 [2021-05-03 16:06:34,841 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:34,878 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 36 [2021-05-03 16:06:34,890 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:34,934 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 50 treesize of output 36 [2021-05-03 16:06:34,947 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:34,988 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 43 treesize of output 29 [2021-05-03 16:06:35,000 INFO L550 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,053 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 43 treesize of output 29 [2021-05-03 16:06:35,063 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,117 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 [2021-05-03 16:06:35,128 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:06:35,198 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,255 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 52 treesize of output 36 [2021-05-03 16:06:35,267 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,325 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 48 treesize of output 36 [2021-05-03 16:06:35,338 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,390 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 [2021-05-03 16:06:35,402 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,491 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 [2021-05-03 16:06:35,502 INFO L550 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,565 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 [2021-05-03 16:06:35,577 INFO L550 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,629 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 [2021-05-03 16:06:35,641 INFO L550 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,721 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 [2021-05-03 16:06:35,732 INFO L550 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,810 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 43 treesize of output 29 [2021-05-03 16:06:35,820 INFO L550 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,875 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 52 treesize of output 36 [2021-05-03 16:06:35,886 INFO L550 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:35,937 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 [2021-05-03 16:06:35,943 INFO L550 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:36,005 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 [2021-05-03 16:06:36,016 INFO L550 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:36,078 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 [2021-05-03 16:06:36,092 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:36,174 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 39 treesize of output 29 [2021-05-03 16:06:36,186 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:36,311 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 [2021-05-03 16:06:36,321 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:36,416 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 [2021-05-03 16:06:36,427 INFO L550 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:36,587 INFO L244 Elim1Store]: Index analysis took 120 ms [2021-05-03 16:06:36,590 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 [2021-05-03 16:06:36,601 INFO L550 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:36,731 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 [2021-05-03 16:06:36,744 INFO L550 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:36,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-05-03 16:06:36,895 INFO L550 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:36,924 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 [2021-05-03 16:06:36,935 INFO L550 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:46,786 WARN L205 SmtUtils]: Spent 9.85 s on a formula simplification that was a NOOP. DAG size: 266 [2021-05-03 16:06:46,788 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:06:46,904 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 30 [2021-05-03 16:06:46,915 INFO L550 ElimStorePlain]: Start of recursive call 34: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:47,032 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 30 [2021-05-03 16:06:47,045 INFO L550 ElimStorePlain]: Start of recursive call 35: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:47,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2021-05-03 16:06:47,197 INFO L550 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:47,295 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 46 treesize of output 30 [2021-05-03 16:06:47,307 INFO L550 ElimStorePlain]: Start of recursive call 37: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:47,411 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 [2021-05-03 16:06:47,424 INFO L550 ElimStorePlain]: Start of recursive call 38: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:47,537 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 44 treesize of output 30 [2021-05-03 16:06:47,546 INFO L550 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:47,615 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 30 [2021-05-03 16:06:47,627 INFO L550 ElimStorePlain]: Start of recursive call 40: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:47,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 34 [2021-05-03 16:06:47,725 INFO L550 ElimStorePlain]: Start of recursive call 41: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:47,809 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 [2021-05-03 16:06:47,818 INFO L550 ElimStorePlain]: Start of recursive call 42: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:47,893 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 [2021-05-03 16:06:47,906 INFO L550 ElimStorePlain]: Start of recursive call 43: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:47,988 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 48 treesize of output 34 [2021-05-03 16:06:48,001 INFO L550 ElimStorePlain]: Start of recursive call 44: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2021-05-03 16:06:48,082 INFO L550 ElimStorePlain]: Start of recursive call 45: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,197 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 37 treesize of output 25 [2021-05-03 16:06:48,208 INFO L550 ElimStorePlain]: Start of recursive call 46: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2021-05-03 16:06:48,328 INFO L550 ElimStorePlain]: Start of recursive call 47: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,448 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 37 treesize of output 25 [2021-05-03 16:06:48,488 INFO L550 ElimStorePlain]: Start of recursive call 48: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,537 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 52 treesize of output 34 [2021-05-03 16:06:48,589 INFO L550 ElimStorePlain]: Start of recursive call 49: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,627 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 [2021-05-03 16:06:48,638 INFO L550 ElimStorePlain]: Start of recursive call 50: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,682 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 35 treesize of output 25 [2021-05-03 16:06:48,693 INFO L550 ElimStorePlain]: Start of recursive call 51: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,731 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 [2021-05-03 16:06:48,740 INFO L550 ElimStorePlain]: Start of recursive call 52: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,784 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 [2021-05-03 16:06:48,796 INFO L550 ElimStorePlain]: Start of recursive call 53: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,844 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 37 treesize of output 25 [2021-05-03 16:06:48,857 INFO L550 ElimStorePlain]: Start of recursive call 54: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:48,917 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 [2021-05-03 16:06:48,934 INFO L550 ElimStorePlain]: Start of recursive call 55: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:49,002 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 [2021-05-03 16:06:49,013 INFO L550 ElimStorePlain]: Start of recursive call 56: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:49,082 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 [2021-05-03 16:06:49,095 INFO L550 ElimStorePlain]: Start of recursive call 57: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:49,149 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 37 treesize of output 25 [2021-05-03 16:06:49,159 INFO L550 ElimStorePlain]: Start of recursive call 58: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:49,221 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 39 treesize of output 25 [2021-05-03 16:06:49,233 INFO L550 ElimStorePlain]: Start of recursive call 59: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:49,288 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 [2021-05-03 16:06:49,299 INFO L550 ElimStorePlain]: Start of recursive call 60: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:49,352 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 [2021-05-03 16:06:49,364 INFO L550 ElimStorePlain]: Start of recursive call 61: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:49,417 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 [2021-05-03 16:06:49,428 INFO L550 ElimStorePlain]: Start of recursive call 62: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:49,474 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 46 treesize of output 30 [2021-05-03 16:06:49,487 INFO L550 ElimStorePlain]: Start of recursive call 63: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:49,544 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 [2021-05-03 16:06:49,556 INFO L550 ElimStorePlain]: Start of recursive call 64: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:06:49,586 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 [2021-05-03 16:06:49,596 INFO L550 ElimStorePlain]: Start of recursive call 65: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 16:07:05,347 WARN L205 SmtUtils]: Spent 15.75 s on a formula simplification. DAG size of input: 328 DAG size of output: 327 [2021-05-03 16:07:05,350 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.5 percent of original size [2021-05-03 16:07:05,417 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 [2021-05-03 16:07:05,423 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:05,488 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 17 treesize of output 19 [2021-05-03 16:07:05,494 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:05,558 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 [2021-05-03 16:07:05,564 INFO L550 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:05,622 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 [2021-05-03 16:07:05,629 INFO L550 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:05,689 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 [2021-05-03 16:07:05,696 INFO L550 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:05,753 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 [2021-05-03 16:07:05,760 INFO L550 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:05,823 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 17 treesize of output 19 [2021-05-03 16:07:05,829 INFO L550 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:05,884 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 21 treesize of output 21 [2021-05-03 16:07:05,890 INFO L550 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:05,944 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 [2021-05-03 16:07:05,950 INFO L550 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,014 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 22 treesize of output 22 [2021-05-03 16:07:06,021 INFO L550 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,081 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 [2021-05-03 16:07:06,085 INFO L550 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,153 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 [2021-05-03 16:07:06,160 INFO L550 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,221 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 22 treesize of output 22 [2021-05-03 16:07:06,228 INFO L550 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,286 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 22 treesize of output 22 [2021-05-03 16:07:06,293 INFO L550 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,353 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 [2021-05-03 16:07:06,359 INFO L550 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,413 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 [2021-05-03 16:07:06,419 INFO L550 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,481 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 [2021-05-03 16:07:06,487 INFO L550 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,542 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 [2021-05-03 16:07:06,546 INFO L550 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,598 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 [2021-05-03 16:07:06,603 INFO L550 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,670 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 17 treesize of output 19 [2021-05-03 16:07:06,678 INFO L550 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,743 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 22 treesize of output 22 [2021-05-03 16:07:06,750 INFO L550 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,813 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 [2021-05-03 16:07:06,820 INFO L550 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,881 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 [2021-05-03 16:07:06,887 INFO L550 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:06,955 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 [2021-05-03 16:07:06,961 INFO L550 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:07,025 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 [2021-05-03 16:07:07,032 INFO L550 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:07,096 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 [2021-05-03 16:07:07,102 INFO L550 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:07,164 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 [2021-05-03 16:07:07,170 INFO L550 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:07,226 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 [2021-05-03 16:07:07,233 INFO L550 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:07,319 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 [2021-05-03 16:07:07,324 INFO L550 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:07,371 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 [2021-05-03 16:07:07,374 INFO L550 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:07,417 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 17 treesize of output 19 [2021-05-03 16:07:07,424 INFO L550 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:07,464 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 [2021-05-03 16:07:07,471 INFO L550 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:09,523 WARN L205 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 295 [2021-05-03 16:07:09,524 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:09,537 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-05-03 16:07:09,538 INFO L247 ElimStorePlain]: Needed 97 recursive calls to eliminate 3 variables, input treesize:2209, output treesize:382 [2021-05-03 16:07:10,179 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 25 [2021-05-03 16:07:10,362 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 [2021-05-03 16:07:10,370 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:10,382 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 [2021-05-03 16:07:10,387 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:10,446 INFO L628 ElimStorePlain]: treesize reduction 93, result has 5.1 percent of original size [2021-05-03 16:07:10,446 INFO L518 ElimStorePlain]: Eliminatee v_prenex_250 vanished before elimination [2021-05-03 16:07:10,446 INFO L518 ElimStorePlain]: Eliminatee v_prenex_248 vanished before elimination [2021-05-03 16:07:10,446 INFO L518 ElimStorePlain]: Eliminatee v_prenex_249 vanished before elimination [2021-05-03 16:07:10,449 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:07:10,449 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:128, output treesize:5 [2021-05-03 16:07:10,495 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:07:10,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:07:10,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2021-05-03 16:07:10,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778530864] [2021-05-03 16:07:10,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 16:07:10,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:07:10,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 16:07:10,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2021-05-03 16:07:10,497 INFO L87 Difference]: Start difference. First operand 6280 states and 22407 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) [2021-05-03 16:07:10,940 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-05-03 16:07:11,328 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2021-05-03 16:07:11,757 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2021-05-03 16:07:12,431 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2021-05-03 16:07:13,848 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2021-05-03 16:07:15,123 WARN L205 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2021-05-03 16:07:17,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:07:17,011 INFO L93 Difference]: Finished difference Result 8577 states and 29914 transitions. [2021-05-03 16:07:17,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-03 16:07:17,015 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 [2021-05-03 16:07:17,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:07:17,039 INFO L225 Difference]: With dead ends: 8577 [2021-05-03 16:07:17,039 INFO L226 Difference]: Without dead ends: 8400 [2021-05-03 16:07:17,040 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 8980.5ms TimeCoverageRelationStatistics Valid=199, Invalid=991, Unknown=0, NotChecked=0, Total=1190 [2021-05-03 16:07:17,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8400 states. [2021-05-03 16:07:17,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8400 to 6348. [2021-05-03 16:07:17,159 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) [2021-05-03 16:07:17,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 22608 transitions. [2021-05-03 16:07:17,179 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 22608 transitions. Word has length 33 [2021-05-03 16:07:17,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:07:17,179 INFO L480 AbstractCegarLoop]: Abstraction has 6348 states and 22608 transitions. [2021-05-03 16:07:17,179 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) [2021-05-03 16:07:17,179 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 22608 transitions. [2021-05-03 16:07:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:07:17,189 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:07:17,189 INFO L551 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] [2021-05-03 16:07:17,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable947,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:07:17,390 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:07:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:07:17,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1829810274, now seen corresponding path program 24 times [2021-05-03 16:07:17,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:07:17,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358249951] [2021-05-03 16:07:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:07:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:07:17,504 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-03 16:07:17,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358249951] [2021-05-03 16:07:17,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391361789] [2021-05-03 16:07:17,504 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 [2021-05-03 16:07:17,542 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-05-03 16:07:17,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:07:17,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 16:07:17,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:07:17,968 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-03 16:07:17,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:07:17,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-05-03 16:07:17,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576037287] [2021-05-03 16:07:17,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-03 16:07:17,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:07:17,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-03 16:07:17,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-05-03 16:07:17,969 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) [2021-05-03 16:07:18,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:07:18,423 INFO L93 Difference]: Finished difference Result 9208 states and 32067 transitions. [2021-05-03 16:07:18,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 16:07:18,427 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 [2021-05-03 16:07:18,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:07:18,453 INFO L225 Difference]: With dead ends: 9208 [2021-05-03 16:07:18,454 INFO L226 Difference]: Without dead ends: 9114 [2021-05-03 16:07:18,454 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 264.0ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-05-03 16:07:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9114 states. [2021-05-03 16:07:18,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 6624. [2021-05-03 16:07:18,598 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) [2021-05-03 16:07:18,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 23486 transitions. [2021-05-03 16:07:18,619 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 23486 transitions. Word has length 33 [2021-05-03 16:07:18,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:07:18,620 INFO L480 AbstractCegarLoop]: Abstraction has 6624 states and 23486 transitions. [2021-05-03 16:07:18,620 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) [2021-05-03 16:07:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 23486 transitions. [2021-05-03 16:07:18,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:07:18,632 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:07:18,632 INFO L551 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] [2021-05-03 16:07:18,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1042,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:07:18,833 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:07:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:07:18,833 INFO L82 PathProgramCache]: Analyzing trace with hash 908088048, now seen corresponding path program 25 times [2021-05-03 16:07:18,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:07:18,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665887135] [2021-05-03 16:07:18,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:07:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:07:18,921 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-05-03 16:07:18,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665887135] [2021-05-03 16:07:18,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009901017] [2021-05-03 16:07:18,921 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) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:07:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:07:18,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-03 16:07:18,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:07:19,336 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-05-03 16:07:19,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:07:19,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-05-03 16:07:19,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3463475] [2021-05-03 16:07:19,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-03 16:07:19,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:07:19,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-03 16:07:19,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-03 16:07:19,337 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) [2021-05-03 16:07:19,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:07:19,535 INFO L93 Difference]: Finished difference Result 6820 states and 24081 transitions. [2021-05-03 16:07:19,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 16:07:19,538 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 [2021-05-03 16:07:19,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:07:19,559 INFO L225 Difference]: With dead ends: 6820 [2021-05-03 16:07:19,559 INFO L226 Difference]: Without dead ends: 6814 [2021-05-03 16:07:19,560 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 84.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-05-03 16:07:19,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6814 states. [2021-05-03 16:07:19,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6814 to 6552. [2021-05-03 16:07:19,788 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) [2021-05-03 16:07:19,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 23263 transitions. [2021-05-03 16:07:19,815 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 23263 transitions. Word has length 33 [2021-05-03 16:07:19,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:07:19,815 INFO L480 AbstractCegarLoop]: Abstraction has 6552 states and 23263 transitions. [2021-05-03 16:07:19,815 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) [2021-05-03 16:07:19,816 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 23263 transitions. [2021-05-03 16:07:19,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:07:19,829 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:07:19,829 INFO L551 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] [2021-05-03 16:07:20,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1043,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:07:20,047 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:07:20,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:07:20,047 INFO L82 PathProgramCache]: Analyzing trace with hash 129571106, now seen corresponding path program 26 times [2021-05-03 16:07:20,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:07:20,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151420281] [2021-05-03 16:07:20,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:07:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:07:20,579 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 24 [2021-05-03 16:07:20,774 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-05-03 16:07:21,573 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 34 [2021-05-03 16:07:22,456 WARN L205 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 40 [2021-05-03 16:07:23,056 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 46 [2021-05-03 16:07:23,396 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 22 [2021-05-03 16:07:23,651 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:07:23,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151420281] [2021-05-03 16:07:23,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055994747] [2021-05-03 16:07:23,652 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 [2021-05-03 16:07:23,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 16:07:23,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:07:23,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-05-03 16:07:23,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:07:24,213 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 [2021-05-03 16:07:24,218 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:24,280 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:24,283 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:07:24,283 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-05-03 16:07:24,709 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-05-03 16:07:24,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:07:24,807 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 [2021-05-03 16:07:24,814 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:24,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:07:24,857 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 [2021-05-03 16:07:24,865 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:24,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:07:24,914 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 [2021-05-03 16:07:24,922 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:24,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:07:24,962 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 [2021-05-03 16:07:24,969 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:25,394 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-03 16:07:25,395 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:25,399 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:07:25,400 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:301, output treesize:297 [2021-05-03 16:07:25,982 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-05-03 16:07:27,344 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 51 treesize of output 35 [2021-05-03 16:07:27,351 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:28,946 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 345 [2021-05-03 16:07:28,947 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:28,973 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 [2021-05-03 16:07:28,979 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:30,549 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 340 [2021-05-03 16:07:30,550 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:30,573 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 [2021-05-03 16:07:30,580 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:32,060 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 335 [2021-05-03 16:07:32,062 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:32,086 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 [2021-05-03 16:07:32,092 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:33,595 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 324 [2021-05-03 16:07:33,596 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:33,620 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 [2021-05-03 16:07:33,627 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:35,113 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 319 [2021-05-03 16:07:35,114 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:35,137 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 37 [2021-05-03 16:07:35,144 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:36,479 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 307 DAG size of output: 144 [2021-05-03 16:07:36,481 INFO L628 ElimStorePlain]: treesize reduction 541, result has 46.7 percent of original size [2021-05-03 16:07:36,481 INFO L518 ElimStorePlain]: Eliminatee v_prenex_265 vanished before elimination [2021-05-03 16:07:36,481 INFO L518 ElimStorePlain]: Eliminatee v_prenex_266 vanished before elimination [2021-05-03 16:07:36,481 INFO L518 ElimStorePlain]: Eliminatee v_prenex_267 vanished before elimination [2021-05-03 16:07:36,481 INFO L518 ElimStorePlain]: Eliminatee v_prenex_268 vanished before elimination [2021-05-03 16:07:36,498 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 51 treesize of output 35 [2021-05-03 16:07:36,504 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:37,064 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-05-03 16:07:37,066 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:37,080 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 [2021-05-03 16:07:37,087 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:37,866 WARN L205 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-05-03 16:07:37,868 INFO L628 ElimStorePlain]: treesize reduction 142, result has 66.7 percent of original size [2021-05-03 16:07:37,868 INFO L518 ElimStorePlain]: Eliminatee v_prenex_271 vanished before elimination [2021-05-03 16:07:37,868 INFO L518 ElimStorePlain]: Eliminatee v_prenex_272 vanished before elimination [2021-05-03 16:07:37,868 INFO L518 ElimStorePlain]: Eliminatee v_prenex_251 vanished before elimination [2021-05-03 16:07:37,868 INFO L518 ElimStorePlain]: Eliminatee v_prenex_273 vanished before elimination [2021-05-03 16:07:37,868 INFO L518 ElimStorePlain]: Eliminatee v_prenex_252 vanished before elimination [2021-05-03 16:07:37,868 INFO L518 ElimStorePlain]: Eliminatee v_prenex_274 vanished before elimination [2021-05-03 16:07:37,868 INFO L518 ElimStorePlain]: Eliminatee v_prenex_275 vanished before elimination [2021-05-03 16:07:37,882 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 51 treesize of output 35 [2021-05-03 16:07:37,888 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:38,253 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-05-03 16:07:38,255 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:38,255 INFO L518 ElimStorePlain]: Eliminatee v_prenex_276 vanished before elimination [2021-05-03 16:07:38,267 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 [2021-05-03 16:07:38,274 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:38,686 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 26 [2021-05-03 16:07:38,688 INFO L628 ElimStorePlain]: treesize reduction 149, result has 39.4 percent of original size [2021-05-03 16:07:38,688 INFO L518 ElimStorePlain]: Eliminatee v_prenex_255 vanished before elimination [2021-05-03 16:07:38,688 INFO L518 ElimStorePlain]: Eliminatee v_prenex_277 vanished before elimination [2021-05-03 16:07:38,688 INFO L518 ElimStorePlain]: Eliminatee v_prenex_256 vanished before elimination [2021-05-03 16:07:38,688 INFO L518 ElimStorePlain]: Eliminatee v_prenex_278 vanished before elimination [2021-05-03 16:07:38,688 INFO L518 ElimStorePlain]: Eliminatee v_prenex_279 vanished before elimination [2021-05-03 16:07:38,688 INFO L518 ElimStorePlain]: Eliminatee v_prenex_257 vanished before elimination [2021-05-03 16:07:38,689 INFO L518 ElimStorePlain]: Eliminatee v_prenex_258 vanished before elimination [2021-05-03 16:07:38,689 INFO L518 ElimStorePlain]: Eliminatee v_prenex_259 vanished before elimination [2021-05-03 16:07:38,689 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-05-03 16:07:38,689 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-05-03 16:07:38,693 INFO L550 ElimStorePlain]: Start of recursive call 1: 32 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-05-03 16:07:38,693 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 32 variables, input treesize:1137, output treesize:93 [2021-05-03 16:07:39,000 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-05-03 16:07:39,708 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2021-05-03 16:07:39,905 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 [2021-05-03 16:07:39,911 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:39,920 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-05-03 16:07:39,926 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:40,012 INFO L628 ElimStorePlain]: treesize reduction 135, result has 3.6 percent of original size [2021-05-03 16:07:40,012 INFO L518 ElimStorePlain]: Eliminatee v_prenex_281 vanished before elimination [2021-05-03 16:07:40,012 INFO L518 ElimStorePlain]: Eliminatee v_prenex_282 vanished before elimination [2021-05-03 16:07:40,012 INFO L518 ElimStorePlain]: Eliminatee v_prenex_283 vanished before elimination [2021-05-03 16:07:40,015 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:07:40,015 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:182, output treesize:5 [2021-05-03 16:07:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:07:40,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:07:40,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-05-03 16:07:40,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537059807] [2021-05-03 16:07:40,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 16:07:40,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:07:40,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 16:07:40,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2021-05-03 16:07:40,058 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) [2021-05-03 16:07:40,517 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2021-05-03 16:07:40,888 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2021-05-03 16:07:41,283 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-05-03 16:07:41,799 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-05-03 16:07:42,716 WARN L205 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-05-03 16:07:44,415 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2021-05-03 16:07:45,805 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2021-05-03 16:07:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 16:07:47,701 INFO L93 Difference]: Finished difference Result 9611 states and 33398 transitions. [2021-05-03 16:07:47,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 16:07:47,705 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 [2021-05-03 16:07:47,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 16:07:47,729 INFO L225 Difference]: With dead ends: 9611 [2021-05-03 16:07:47,729 INFO L226 Difference]: Without dead ends: 9528 [2021-05-03 16:07:47,729 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 9207.5ms TimeCoverageRelationStatistics Valid=188, Invalid=934, Unknown=0, NotChecked=0, Total=1122 [2021-05-03 16:07:47,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9528 states. [2021-05-03 16:07:47,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9528 to 6592. [2021-05-03 16:07:47,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6592 states, 6591 states have (on average 3.5483234714003946) internal successors, (23387), 6591 states have internal predecessors, (23387), 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) [2021-05-03 16:07:47,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6592 states to 6592 states and 23387 transitions. [2021-05-03 16:07:47,877 INFO L78 Accepts]: Start accepts. Automaton has 6592 states and 23387 transitions. Word has length 33 [2021-05-03 16:07:47,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 16:07:47,877 INFO L480 AbstractCegarLoop]: Abstraction has 6592 states and 23387 transitions. [2021-05-03 16:07:47,877 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) [2021-05-03 16:07:47,877 INFO L276 IsEmpty]: Start isEmpty. Operand 6592 states and 23387 transitions. [2021-05-03 16:07:47,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-03 16:07:47,890 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 16:07:47,890 INFO L551 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] [2021-05-03 16:07:48,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1044 [2021-05-03 16:07:48,105 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 16:07:48,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 16:07:48,105 INFO L82 PathProgramCache]: Analyzing trace with hash 800704726, now seen corresponding path program 27 times [2021-05-03 16:07:48,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 16:07:48,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369135123] [2021-05-03 16:07:48,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 16:07:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 16:07:48,636 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 21 [2021-05-03 16:07:48,874 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2021-05-03 16:07:49,650 WARN L205 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 48 [2021-05-03 16:07:50,453 WARN L205 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 55 [2021-05-03 16:07:51,320 WARN L205 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 53 [2021-05-03 16:07:51,956 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 45 [2021-05-03 16:07:52,194 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 16 [2021-05-03 16:07:52,373 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 10 [2021-05-03 16:07:52,443 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:07:52,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369135123] [2021-05-03 16:07:52,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513049242] [2021-05-03 16:07:52,443 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 [2021-05-03 16:07:52,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-05-03 16:07:52,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 16:07:52,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 29 conjunts are in the unsatisfiable core [2021-05-03 16:07:52,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 16:07:52,979 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 [2021-05-03 16:07:52,984 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:53,041 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:53,045 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:07:53,045 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:42 [2021-05-03 16:07:53,444 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-03 16:07:53,595 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-05-03 16:07:53,595 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 [2021-05-03 16:07:53,601 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:53,684 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-05-03 16:07:53,684 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 [2021-05-03 16:07:53,690 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:53,778 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-05-03 16:07:53,778 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 [2021-05-03 16:07:53,784 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:53,861 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-05-03 16:07:53,861 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 [2021-05-03 16:07:53,867 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:07:54,319 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-05-03 16:07:54,320 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:07:54,328 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. [2021-05-03 16:07:54,329 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:285, output treesize:281 [2021-05-03 16:07:54,962 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-05-03 16:07:55,674 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-05-03 16:07:57,667 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2021-05-03 16:08:01,942 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:08:01,944 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:08:01,944 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 [2021-05-03 16:08:01,968 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:08:02,179 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:08:02,181 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:08:02,182 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 [2021-05-03 16:08:02,203 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:08:05,962 WARN L205 SmtUtils]: Spent 3.76 s on a formula simplification that was a NOOP. DAG size: 521 [2021-05-03 16:08:05,964 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:08:06,174 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:08:06,176 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:08:06,176 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 [2021-05-03 16:08:06,260 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-05-03 16:08:06,419 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-05-03 16:08:06,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 52 [2021-05-03 16:08:06,430 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:08:14,061 WARN L205 SmtUtils]: Spent 7.63 s on a formula simplification. DAG size of input: 536 DAG size of output: 510 [2021-05-03 16:08:14,064 INFO L628 ElimStorePlain]: treesize reduction 190, result has 90.5 percent of original size [2021-05-03 16:08:14,277 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:08:14,279 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:08:14,279 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 [2021-05-03 16:08:14,312 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2021-05-03 16:08:22,282 WARN L205 SmtUtils]: Spent 7.97 s on a formula simplification. DAG size of input: 518 DAG size of output: 514 [2021-05-03 16:08:22,284 INFO L628 ElimStorePlain]: treesize reduction 75, result has 96.0 percent of original size [2021-05-03 16:08:22,550 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:08:22,551 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:08:22,552 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 [2021-05-03 16:08:22,575 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:08:22,798 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:08:22,799 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:08:22,799 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 [2021-05-03 16:08:22,820 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:08:26,740 WARN L205 SmtUtils]: Spent 3.92 s on a formula simplification that was a NOOP. DAG size: 513 [2021-05-03 16:08:26,742 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:08:26,944 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:08:26,946 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:08:26,946 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 [2021-05-03 16:08:26,969 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:08:30,969 WARN L205 SmtUtils]: Spent 4.00 s on a formula simplification that was a NOOP. DAG size: 517 [2021-05-03 16:08:30,971 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:08:31,128 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:08:31,130 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:08:31,130 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 84 [2021-05-03 16:08:31,233 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 3 xjuncts. [2021-05-03 16:08:39,656 WARN L205 SmtUtils]: Spent 8.42 s on a formula simplification. DAG size of input: 515 DAG size of output: 504 [2021-05-03 16:08:39,659 INFO L628 ElimStorePlain]: treesize reduction 93, result has 95.1 percent of original size [2021-05-03 16:08:39,893 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:08:39,895 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:08:39,896 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 [2021-05-03 16:08:39,915 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 16:08:44,393 WARN L205 SmtUtils]: Spent 4.48 s on a formula simplification that was a NOOP. DAG size: 514 [2021-05-03 16:08:44,395 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:08:44,687 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:08:44,689 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:08:44,689 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 [2021-05-03 16:08:44,711 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 16:08:44,964 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:08:44,966 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:08:44,966 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 [2021-05-03 16:08:44,993 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 16:08:49,343 WARN L205 SmtUtils]: Spent 4.35 s on a formula simplification that was a NOOP. DAG size: 521 [2021-05-03 16:08:49,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:08:49,561 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:08:49,564 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:08:49,564 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 106 treesize of output 102 [2021-05-03 16:08:49,872 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 4 xjuncts. [2021-05-03 16:09:04,184 WARN L205 SmtUtils]: Spent 14.31 s on a formula simplification. DAG size of input: 539 DAG size of output: 505 [2021-05-03 16:09:04,187 INFO L628 ElimStorePlain]: treesize reduction 377, result has 83.1 percent of original size [2021-05-03 16:09:04,453 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:09:04,455 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:09:04,455 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 91 treesize of output 89 [2021-05-03 16:09:04,675 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 3 xjuncts. [2021-05-03 16:09:04,792 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 16:09:04,793 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 89 treesize of output 1 [2021-05-03 16:09:04,799 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 16:09:14,390 WARN L205 SmtUtils]: Spent 9.59 s on a formula simplification. DAG size of input: 510 DAG size of output: 483 [2021-05-03 16:09:14,394 INFO L628 ElimStorePlain]: treesize reduction 230, result has 88.3 percent of original size [2021-05-03 16:09:14,657 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:09:14,659 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:09:14,659 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 [2021-05-03 16:09:14,682 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 16:09:19,540 WARN L205 SmtUtils]: Spent 4.86 s on a formula simplification that was a NOOP. DAG size: 492 [2021-05-03 16:09:19,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:09:19,830 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:09:19,833 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:09:19,833 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 [2021-05-03 16:09:19,867 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2021-05-03 16:09:24,743 WARN L205 SmtUtils]: Spent 4.88 s on a formula simplification that was a NOOP. DAG size: 497 [2021-05-03 16:09:24,747 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:09:24,985 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:09:24,987 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:09:24,987 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 84 [2021-05-03 16:09:25,187 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 3 xjuncts. [2021-05-03 16:09:40,665 WARN L205 SmtUtils]: Spent 15.48 s on a formula simplification. DAG size of input: 492 DAG size of output: 483 [2021-05-03 16:09:40,667 INFO L628 ElimStorePlain]: treesize reduction 80, result has 95.7 percent of original size [2021-05-03 16:09:40,945 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:09:40,947 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:09:40,947 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 [2021-05-03 16:09:41,144 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 4 xjuncts. [2021-05-03 16:09:41,436 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 3 [2021-05-03 16:09:41,438 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-05-03 16:09:41,438 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 63 treesize of output 48 [2021-05-03 16:09:41,481 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 3 xjuncts. [2021-05-03 16:09:52,372 WARN L205 SmtUtils]: Spent 10.89 s on a formula simplification. DAG size of input: 495 DAG size of output: 469 [2021-05-03 16:09:52,376 INFO L628 ElimStorePlain]: treesize reduction 285, result has 85.6 percent of original size [2021-05-03 16:09:52,657 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:09:52,659 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:09:52,660 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 [2021-05-03 16:09:52,684 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-05-03 16:09:57,931 WARN L205 SmtUtils]: Spent 5.25 s on a formula simplification that was a NOOP. DAG size: 471 [2021-05-03 16:09:57,933 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:09:58,184 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:09:58,186 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:09:58,186 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 82 [2021-05-03 16:09:58,259 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2021-05-03 16:10:07,118 WARN L205 SmtUtils]: Spent 8.86 s on a formula simplification. DAG size of input: 469 DAG size of output: 459 [2021-05-03 16:10:07,121 INFO L628 ElimStorePlain]: treesize reduction 52, result has 97.0 percent of original size [2021-05-03 16:10:07,414 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:10:07,416 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:10:07,416 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 [2021-05-03 16:10:07,439 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-05-03 16:10:07,683 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:10:07,685 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:10:07,685 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 [2021-05-03 16:10:07,706 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-05-03 16:10:11,903 WARN L205 SmtUtils]: Spent 4.20 s on a formula simplification that was a NOOP. DAG size: 464 [2021-05-03 16:10:11,904 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:10:12,130 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:10:12,132 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:10:12,132 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 [2021-05-03 16:10:12,250 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 3 xjuncts. [2021-05-03 16:10:12,362 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 16:10:12,362 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 [2021-05-03 16:10:12,368 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-05-03 16:10:20,658 WARN L205 SmtUtils]: Spent 8.29 s on a formula simplification. DAG size of input: 470 DAG size of output: 448 [2021-05-03 16:10:20,660 INFO L628 ElimStorePlain]: treesize reduction 165, result has 90.7 percent of original size [2021-05-03 16:10:20,896 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:10:20,898 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:10:20,898 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 [2021-05-03 16:10:20,933 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2021-05-03 16:10:29,697 WARN L205 SmtUtils]: Spent 8.76 s on a formula simplification. DAG size of input: 451 DAG size of output: 450 [2021-05-03 16:10:29,700 INFO L628 ElimStorePlain]: treesize reduction 27, result has 98.4 percent of original size [2021-05-03 16:10:29,878 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:10:29,880 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:10:29,880 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 70 [2021-05-03 16:10:29,958 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 3 xjuncts. [2021-05-03 16:10:38,787 WARN L205 SmtUtils]: Spent 8.83 s on a formula simplification. DAG size of input: 439 DAG size of output: 437 [2021-05-03 16:10:38,790 INFO L628 ElimStorePlain]: treesize reduction 4, result has 99.8 percent of original size [2021-05-03 16:10:39,049 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:10:39,051 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:10:39,051 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 [2021-05-03 16:10:39,085 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2021-05-03 16:10:49,130 WARN L205 SmtUtils]: Spent 10.04 s on a formula simplification. DAG size of input: 448 DAG size of output: 444 [2021-05-03 16:10:49,133 INFO L628 ElimStorePlain]: treesize reduction 75, result has 95.6 percent of original size [2021-05-03 16:10:49,322 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:10:49,324 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:10:49,324 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 82 treesize of output 84 [2021-05-03 16:10:49,460 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 3 xjuncts. [2021-05-03 16:10:59,268 WARN L205 SmtUtils]: Spent 9.81 s on a formula simplification. DAG size of input: 442 DAG size of output: 430 [2021-05-03 16:10:59,271 INFO L628 ElimStorePlain]: treesize reduction 78, result has 95.4 percent of original size [2021-05-03 16:10:59,483 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:10:59,486 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:10:59,486 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 82 [2021-05-03 16:10:59,684 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 3 xjuncts. [2021-05-03 16:11:10,769 WARN L205 SmtUtils]: Spent 11.08 s on a formula simplification. DAG size of input: 436 DAG size of output: 419 [2021-05-03 16:11:10,772 INFO L628 ElimStorePlain]: treesize reduction 220, result has 87.8 percent of original size [2021-05-03 16:11:11,124 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:11:11,126 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:11:11,126 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 [2021-05-03 16:11:11,152 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-05-03 16:11:11,386 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:11:11,388 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:11:11,388 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 [2021-05-03 16:11:11,409 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-05-03 16:11:16,414 WARN L205 SmtUtils]: Spent 5.00 s on a formula simplification that was a NOOP. DAG size: 422 [2021-05-03 16:11:16,416 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:11:16,644 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:11:16,646 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:11:16,646 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 [2021-05-03 16:11:16,681 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2021-05-03 16:11:21,475 WARN L205 SmtUtils]: Spent 4.79 s on a formula simplification that was a NOOP. DAG size: 424 [2021-05-03 16:11:21,477 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:11:21,776 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:11:21,778 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:11:21,778 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 92 [2021-05-03 16:11:21,916 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 4 xjuncts. [2021-05-03 16:11:22,076 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 3 [2021-05-03 16:11:22,078 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-05-03 16:11:22,078 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 71 [2021-05-03 16:11:22,137 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 2 xjuncts. [2021-05-03 16:11:33,025 WARN L205 SmtUtils]: Spent 10.89 s on a formula simplification. DAG size of input: 443 DAG size of output: 406 [2021-05-03 16:11:33,027 INFO L628 ElimStorePlain]: treesize reduction 330, result has 82.1 percent of original size [2021-05-03 16:11:33,203 INFO L244 Elim1Store]: Index analysis took 132 ms [2021-05-03 16:11:33,377 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:11:33,379 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:11:33,379 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 70 [2021-05-03 16:11:33,487 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 5 xjuncts. [2021-05-03 16:11:44,414 WARN L205 SmtUtils]: Spent 10.93 s on a formula simplification. DAG size of input: 400 DAG size of output: 392 [2021-05-03 16:11:44,416 INFO L628 ElimStorePlain]: treesize reduction 75, result has 95.3 percent of original size [2021-05-03 16:11:44,717 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:11:44,719 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:11:44,720 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 [2021-05-03 16:11:44,751 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 2 xjuncts. [2021-05-03 16:11:55,411 WARN L205 SmtUtils]: Spent 10.66 s on a formula simplification. DAG size of input: 398 DAG size of output: 397 [2021-05-03 16:11:55,413 INFO L628 ElimStorePlain]: treesize reduction 40, result has 97.4 percent of original size [2021-05-03 16:11:55,639 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:11:55,641 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:11:55,641 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 82 treesize of output 84 [2021-05-03 16:11:55,817 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 4 xjuncts. [2021-05-03 16:12:07,572 WARN L205 SmtUtils]: Spent 11.75 s on a formula simplification. DAG size of input: 396 DAG size of output: 383 [2021-05-03 16:12:07,575 INFO L628 ElimStorePlain]: treesize reduction 132, result has 92.0 percent of original size [2021-05-03 16:12:07,867 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:12:07,869 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:12:07,869 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 [2021-05-03 16:12:07,893 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-05-03 16:12:13,606 WARN L205 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 386 [2021-05-03 16:12:13,608 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:12:13,857 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:12:13,859 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:12:13,860 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 108 treesize of output 102 [2021-05-03 16:12:14,132 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 4 xjuncts. [2021-05-03 16:12:27,475 WARN L205 SmtUtils]: Spent 13.34 s on a formula simplification. DAG size of input: 400 DAG size of output: 370 [2021-05-03 16:12:27,478 INFO L628 ElimStorePlain]: treesize reduction 281, result has 84.1 percent of original size [2021-05-03 16:12:27,859 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:12:27,862 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:12:27,862 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 [2021-05-03 16:12:27,886 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-05-03 16:12:28,214 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:12:28,216 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:12:28,217 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 [2021-05-03 16:12:28,241 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-05-03 16:12:34,342 WARN L205 SmtUtils]: Spent 6.10 s on a formula simplification that was a NOOP. DAG size: 371 [2021-05-03 16:12:34,344 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:12:34,842 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:12:34,845 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:12:34,845 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 78 treesize of output 82 [2021-05-03 16:12:35,076 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 5 xjuncts. [2021-05-03 16:12:56,288 WARN L205 SmtUtils]: Spent 21.21 s on a formula simplification. DAG size of input: 388 DAG size of output: 359 [2021-05-03 16:12:56,291 INFO L628 ElimStorePlain]: treesize reduction 312, result has 82.7 percent of original size [2021-05-03 16:12:56,657 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:12:56,659 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:12:56,660 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 72 treesize of output 78 [2021-05-03 16:12:56,791 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 5 xjuncts. [2021-05-03 16:12:56,984 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 3 [2021-05-03 16:12:56,986 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-05-03 16:12:56,986 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 74 treesize of output 57 [2021-05-03 16:12:57,028 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 2 xjuncts. [2021-05-03 16:13:17,631 WARN L205 SmtUtils]: Spent 20.60 s on a formula simplification. DAG size of input: 369 DAG size of output: 344 [2021-05-03 16:13:17,634 INFO L628 ElimStorePlain]: treesize reduction 226, result has 86.1 percent of original size [2021-05-03 16:13:17,919 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:13:17,922 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 16:13:17,922 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 [2021-05-03 16:13:17,951 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-05-03 16:13:25,016 WARN L205 SmtUtils]: Spent 7.06 s on a formula simplification that was a NOOP. DAG size: 345 [2021-05-03 16:13:25,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:13:25,289 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-05-03 16:13:25,291 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:13:25,291 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 78 treesize of output 82 [2021-05-03 16:13:25,585 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 6 xjuncts. [2021-05-03 16:13:39,349 WARN L205 SmtUtils]: Spent 13.76 s on a formula simplification. DAG size of input: 362 DAG size of output: 334 [2021-05-03 16:13:39,352 INFO L628 ElimStorePlain]: treesize reduction 311, result has 81.8 percent of original size [2021-05-03 16:13:39,823 INFO L550 ElimStorePlain]: Start of recursive call 1: 18 dim-0 vars, 36 dim-1 vars, End of recursive call: 22 dim-0 vars, and 22 xjuncts. [2021-05-03 16:13:39,823 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 54 variables, input treesize:1873, output treesize:1396 [2021-05-03 16:13:41,892 WARN L205 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 88 [2021-05-03 16:13:42,153 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:13:42,284 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 18 [2021-05-03 16:13:42,418 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:13:43,052 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:13:43,174 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 18 [2021-05-03 16:13:43,305 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:13:44,050 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:13:44,582 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:13:44,691 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 18 [2021-05-03 16:13:44,805 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-05-03 16:13:46,430 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2021-05-03 16:13:47,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:13:47,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 16:13:47,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 16:13:47,173 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 [2021-05-03 16:13:47,181 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 16:13:47,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:13:47,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 16:13:47,207 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 12 [2021-05-03 16:13:47,217 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 16:13:48,279 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2021-05-03 16:13:48,282 INFO L628 ElimStorePlain]: treesize reduction 21, result has 88.2 percent of original size [2021-05-03 16:13:48,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:13:48,317 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 [2021-05-03 16:13:48,327 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 16:13:48,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:13:48,424 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-05-03 16:13:48,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 16 [2021-05-03 16:13:48,440 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 16:13:48,955 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-05-03 16:13:48,957 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:13:48,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:13:49,061 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 16:13:49,061 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 22 [2021-05-03 16:13:49,098 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2021-05-03 16:13:49,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:13:49,123 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 [2021-05-03 16:13:49,137 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 16:13:50,009 WARN L205 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-05-03 16:13:50,011 INFO L628 ElimStorePlain]: treesize reduction 6, result has 94.3 percent of original size [2021-05-03 16:13:50,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:13:50,041 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 [2021-05-03 16:13:50,052 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 16:13:50,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 16:13:50,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 16:13:50,077 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 [2021-05-03 16:13:50,088 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 16:13:50,600 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2021-05-03 16:13:50,602 INFO L628 ElimStorePlain]: treesize reduction 12, result has 83.1 percent of original size [2021-05-03 16:13:50,620 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 16:13:50,620 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:225, output treesize:1 [2021-05-03 16:13:50,695 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 16:13:50,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 16:13:50,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 25 [2021-05-03 16:13:50,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287404411] [2021-05-03 16:13:50,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 16:13:50,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 16:13:50,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 16:13:50,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2021-05-03 16:13:50,696 INFO L87 Difference]: Start difference. First operand 6592 states and 23387 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) [2021-05-03 16:13:51,137 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-05-03 16:13:51,495 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2021-05-03 16:13:51,989 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2021-05-03 16:13:52,586 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2021-05-03 16:13:53,166 WARN L205 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 40 [2021-05-03 16:13:54,794 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 78 DAG size of output: 53 Received shutdown request... [2021-05-03 16:13:56,654 WARN L222 SmtUtils]: Removed 2 from assertion stack [2021-05-03 16:13:56,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 16:13:56,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1084,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 16:13:56,855 WARN L545 AbstractCegarLoop]: Verification canceled [2021-05-03 16:13:56,859 WARN L224 ceAbstractionStarter]: Timeout [2021-05-03 16:13:56,859 INFO L202 PluginConnector]: Adding new model three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 04:13:56 BasicIcfg [2021-05-03 16:13:56,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-03 16:13:56,860 INFO L168 Benchmark]: Toolchain (without parser) took 811459.65 ms. Allocated memory was 346.0 MB in the beginning and 729.8 MB in the end (delta: 383.8 MB). Free memory was 325.6 MB in the beginning and 337.3 MB in the end (delta: -11.7 MB). Peak memory consumption was 374.3 MB. Max. memory is 16.0 GB. [2021-05-03 16:13:56,860 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 346.0 MB. Free memory is still 326.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 16:13:56,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.42 ms. Allocated memory is still 346.0 MB. Free memory was 325.6 MB in the beginning and 324.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 16:13:56,860 INFO L168 Benchmark]: Boogie Preprocessor took 21.10 ms. Allocated memory is still 346.0 MB. Free memory was 324.1 MB in the beginning and 323.1 MB in the end (delta: 962.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-03 16:13:56,860 INFO L168 Benchmark]: RCFGBuilder took 445.89 ms. Allocated memory is still 346.0 MB. Free memory was 322.9 MB in the beginning and 308.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-05-03 16:13:56,860 INFO L168 Benchmark]: TraceAbstraction took 810934.26 ms. Allocated memory was 346.0 MB in the beginning and 729.8 MB in the end (delta: 383.8 MB). Free memory was 308.2 MB in the beginning and 337.3 MB in the end (delta: -29.1 MB). Peak memory consumption was 357.5 MB. Max. memory is 16.0 GB. [2021-05-03 16:13:56,861 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 0.24 ms. Allocated memory is still 346.0 MB. Free memory is still 326.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.42 ms. Allocated memory is still 346.0 MB. Free memory was 325.6 MB in the beginning and 324.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.10 ms. Allocated memory is still 346.0 MB. Free memory was 324.1 MB in the beginning and 323.1 MB in the end (delta: 962.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 445.89 ms. Allocated memory is still 346.0 MB. Free memory was 322.9 MB in the beginning and 308.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 810934.26 ms. Allocated memory was 346.0 MB in the beginning and 729.8 MB in the end (delta: 383.8 MB). Free memory was 308.2 MB in the beginning and 337.3 MB in the end (delta: -29.1 MB). Peak memory consumption was 357.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 74). Cancelled while BasicCegarLoop was constructing difference of abstraction (6592states) and FLOYD_HOARE automaton (currently 13 states, 25 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 94 for 1464ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 810776.6ms, OverallIterations: 32, TraceHistogramMax: 2, EmptinessCheckTime: 376.3ms, AutomataDifference: 95063.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 62.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1099 SDtfs, 4390 SDslu, 5660 SDs, 0 SdLazy, 11909 SolverSat, 765 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17077.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1275 GetRequests, 660 SyntacticMatches, 8 SemanticMatches, 606 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4642 ImplicationChecksByTransitivity, 125610.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6624occurred in iteration=29, InterpolantAutomatonStates: 441, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 4374.4ms AutomataMinimizationTime, 31 MinimizatonAttempts, 41330 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 180.2ms SsaConstructionTime, 1045.8ms SatisfiabilityAnalysisTime, 703252.5ms InterpolantComputationTime, 1741 NumberOfCodeBlocks, 1741 NumberOfCodeBlocksAsserted, 90 NumberOfCheckSat, 1683 ConstructedInterpolants, 13 QuantifiedInterpolants, 76958 SizeOfPredicates, 84 NumberOfNonLiveVariables, 2102 ConjunctsInSsa, 461 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 could not prove your program: Timeout Completed graceful shutdown