/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 18:33:20,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 18:33:20,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 18:33:20,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 18:33:20,644 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 [2021-02-19 18:33:20,670 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 18:33:20,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 18:33:20,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 18:33:20,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 18:33:20,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 18:33:20,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 18:33:20,672 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 18:33:20,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 18:33:20,672 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 18:33:20,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 18:33:20,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 18:33:20,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 18:33:20,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 18:33:20,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 18:33:20,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 18:33:20,673 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 18:33:20,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 18:33:20,674 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 18:33:20,674 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 18:33:20,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 18:33:20,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 18:33:20,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 18:33:20,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 18:33:20,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 18:33:20,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 18:33:20,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 18:33:20,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 18:33:20,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 18:33:20,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 18:33:20,676 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 18:33:20,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 18:33:20,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 18:33:20,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 18:33:20,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 18:33:20,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 18:33:20,982 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 18:33:20,984 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 18:33:20,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl [2021-02-19 18:33:20,985 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl' [2021-02-19 18:33:21,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 18:33:21,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 18:33:21,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 18:33:21,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 18:33:21,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 18:33:21,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (1/1) ... [2021-02-19 18:33:21,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (1/1) ... [2021-02-19 18:33:21,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 18:33:21,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 18:33:21,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 18:33:21,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 18:33:21,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (1/1) ... [2021-02-19 18:33:21,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (1/1) ... [2021-02-19 18:33:21,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (1/1) ... [2021-02-19 18:33:21,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (1/1) ... [2021-02-19 18:33:21,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (1/1) ... [2021-02-19 18:33:21,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (1/1) ... [2021-02-19 18:33:21,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (1/1) ... [2021-02-19 18:33:21,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 18:33:21,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 18:33:21,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 18:33:21,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 18:33:21,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (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 [2021-02-19 18:33:21,104 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 18:33:21,104 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 18:33:21,105 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 18:33:21,105 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 18:33:21,105 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 18:33:21,105 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 18:33:21,105 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 18:33:21,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 18:33:21,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 18:33:21,106 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-19 18:33:21,106 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-19 18:33:21,106 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-19 18:33:21,106 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 18:33:21,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 18:33:21,335 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 18:33:21,336 INFO L202 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:33:21 BoogieIcfgContainer [2021-02-19 18:33:21,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 18:33:21,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 18:33:21,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 18:33:21,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 18:33:21,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 06:33:21" (1/2) ... [2021-02-19 18:33:21,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb00519 and model type three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:33:21, skipping insertion in model container [2021-02-19 18:33:21,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:33:21" (2/2) ... [2021-02-19 18:33:21,341 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-max.wvr.bpl [2021-02-19 18:33:21,345 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 18:33:21,359 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 18:33:21,363 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 18:33:21,363 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 18:33:21,415 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-02-19 18:33:21,431 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-02-19 18:33:21,444 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 18:33:21,444 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 18:33:21,444 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 18:33:21,444 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 18:33:21,444 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 18:33:21,444 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 18:33:21,444 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 18:33:21,444 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 18:33:21,452 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 32 transitions, 88 flow [2021-02-19 18:33:21,470 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) [2021-02-19 18:33:21,472 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) [2021-02-19 18:33:21,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-19 18:33:21,479 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:21,480 INFO L506 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:33:21,480 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:21,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:21,484 INFO L82 PathProgramCache]: Analyzing trace with hash -88517269, now seen corresponding path program 1 times [2021-02-19 18:33:21,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:21,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904267801] [2021-02-19 18:33:21,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:21,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:21,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904267801] [2021-02-19 18:33:21,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:33:21,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 18:33:21,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058548934] [2021-02-19 18:33:21,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:33:21,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:21,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:33:21,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:33:21,719 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) [2021-02-19 18:33:21,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:21,811 INFO L93 Difference]: Finished difference Result 474 states and 1450 transitions. [2021-02-19 18:33:21,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 18:33:21,814 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 [2021-02-19 18:33:21,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:21,832 INFO L225 Difference]: With dead ends: 474 [2021-02-19 18:33:21,832 INFO L226 Difference]: Without dead ends: 388 [2021-02-19 18:33:21,833 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:33:21,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-02-19 18:33:21,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 176. [2021-02-19 18:33:21,899 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) [2021-02-19 18:33:21,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 541 transitions. [2021-02-19 18:33:21,902 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 541 transitions. Word has length 19 [2021-02-19 18:33:21,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:21,903 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 541 transitions. [2021-02-19 18:33:21,903 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) [2021-02-19 18:33:21,903 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 541 transitions. [2021-02-19 18:33:21,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-19 18:33:21,909 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:21,909 INFO L506 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] [2021-02-19 18:33:21,910 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 18:33:21,910 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:21,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:21,912 INFO L82 PathProgramCache]: Analyzing trace with hash 640146471, now seen corresponding path program 1 times [2021-02-19 18:33:21,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:21,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748394792] [2021-02-19 18:33:21,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:21,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:21,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748394792] [2021-02-19 18:33:21,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:33:21,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 18:33:21,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045617654] [2021-02-19 18:33:21,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 18:33:21,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:21,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 18:33:21,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 18:33:21,980 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) [2021-02-19 18:33:22,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:22,063 INFO L93 Difference]: Finished difference Result 346 states and 1050 transitions. [2021-02-19 18:33:22,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:33:22,063 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 [2021-02-19 18:33:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:22,067 INFO L225 Difference]: With dead ends: 346 [2021-02-19 18:33:22,067 INFO L226 Difference]: Without dead ends: 323 [2021-02-19 18:33:22,068 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:33:22,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-02-19 18:33:22,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 253. [2021-02-19 18:33:22,094 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) [2021-02-19 18:33:22,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 792 transitions. [2021-02-19 18:33:22,097 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 792 transitions. Word has length 22 [2021-02-19 18:33:22,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:22,097 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 792 transitions. [2021-02-19 18:33:22,097 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) [2021-02-19 18:33:22,097 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 792 transitions. [2021-02-19 18:33:22,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-19 18:33:22,099 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:22,099 INFO L506 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] [2021-02-19 18:33:22,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 18:33:22,100 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:22,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:22,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1179493335, now seen corresponding path program 2 times [2021-02-19 18:33:22,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:22,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432896986] [2021-02-19 18:33:22,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:22,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432896986] [2021-02-19 18:33:22,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:33:22,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 18:33:22,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525056852] [2021-02-19 18:33:22,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 18:33:22,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:22,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 18:33:22,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 18:33:22,131 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) [2021-02-19 18:33:22,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:22,181 INFO L93 Difference]: Finished difference Result 495 states and 1542 transitions. [2021-02-19 18:33:22,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:33:22,182 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 [2021-02-19 18:33:22,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:22,185 INFO L225 Difference]: With dead ends: 495 [2021-02-19 18:33:22,185 INFO L226 Difference]: Without dead ends: 472 [2021-02-19 18:33:22,185 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:33:22,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-02-19 18:33:22,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 304. [2021-02-19 18:33:22,195 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) [2021-02-19 18:33:22,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 995 transitions. [2021-02-19 18:33:22,197 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 995 transitions. Word has length 22 [2021-02-19 18:33:22,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:22,197 INFO L480 AbstractCegarLoop]: Abstraction has 304 states and 995 transitions. [2021-02-19 18:33:22,197 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) [2021-02-19 18:33:22,197 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 995 transitions. [2021-02-19 18:33:22,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-19 18:33:22,198 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:22,199 INFO L506 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] [2021-02-19 18:33:22,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 18:33:22,199 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:22,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:22,199 INFO L82 PathProgramCache]: Analyzing trace with hash 265542313, now seen corresponding path program 3 times [2021-02-19 18:33:22,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:22,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753515918] [2021-02-19 18:33:22,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:22,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753515918] [2021-02-19 18:33:22,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:33:22,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 18:33:22,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730205897] [2021-02-19 18:33:22,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 18:33:22,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:22,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 18:33:22,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 18:33:22,228 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) [2021-02-19 18:33:22,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:22,270 INFO L93 Difference]: Finished difference Result 348 states and 1103 transitions. [2021-02-19 18:33:22,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:33:22,270 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 [2021-02-19 18:33:22,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:22,272 INFO L225 Difference]: With dead ends: 348 [2021-02-19 18:33:22,272 INFO L226 Difference]: Without dead ends: 348 [2021-02-19 18:33:22,273 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:33:22,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-02-19 18:33:22,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 296. [2021-02-19 18:33:22,280 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) [2021-02-19 18:33:22,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 935 transitions. [2021-02-19 18:33:22,282 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 935 transitions. Word has length 22 [2021-02-19 18:33:22,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:22,282 INFO L480 AbstractCegarLoop]: Abstraction has 296 states and 935 transitions. [2021-02-19 18:33:22,282 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) [2021-02-19 18:33:22,282 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 935 transitions. [2021-02-19 18:33:22,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-19 18:33:22,283 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:22,284 INFO L506 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] [2021-02-19 18:33:22,284 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 18:33:22,284 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:22,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:22,284 INFO L82 PathProgramCache]: Analyzing trace with hash -12859855, now seen corresponding path program 1 times [2021-02-19 18:33:22,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:22,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784996333] [2021-02-19 18:33:22,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:22,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:22,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784996333] [2021-02-19 18:33:22,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:33:22,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 18:33:22,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942978876] [2021-02-19 18:33:22,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 18:33:22,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:22,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 18:33:22,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 18:33:22,315 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) [2021-02-19 18:33:22,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:22,363 INFO L93 Difference]: Finished difference Result 309 states and 971 transitions. [2021-02-19 18:33:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:33:22,363 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 [2021-02-19 18:33:22,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:22,365 INFO L225 Difference]: With dead ends: 309 [2021-02-19 18:33:22,366 INFO L226 Difference]: Without dead ends: 309 [2021-02-19 18:33:22,366 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:33:22,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-02-19 18:33:22,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 256. [2021-02-19 18:33:22,372 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) [2021-02-19 18:33:22,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 800 transitions. [2021-02-19 18:33:22,374 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 800 transitions. Word has length 24 [2021-02-19 18:33:22,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:22,374 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 800 transitions. [2021-02-19 18:33:22,374 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) [2021-02-19 18:33:22,374 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 800 transitions. [2021-02-19 18:33:22,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 18:33:22,375 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:22,375 INFO L506 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] [2021-02-19 18:33:22,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 18:33:22,376 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:22,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:22,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1958304005, now seen corresponding path program 1 times [2021-02-19 18:33:22,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:22,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336223421] [2021-02-19 18:33:22,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:22,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:22,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336223421] [2021-02-19 18:33:22,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16597907] [2021-02-19 18:33:22,762 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 [2021-02-19 18:33:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:22,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 17 conjunts are in the unsatisfiable core [2021-02-19 18:33:22,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:23,281 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 [2021-02-19 18:33:23,292 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:23,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-02-19 18:33:23,308 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:23,314 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 [2021-02-19 18:33:23,319 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:23,323 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 [2021-02-19 18:33:23,331 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:23,391 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:23,397 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 [2021-02-19 18:33:23,409 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:23,421 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 [2021-02-19 18:33:23,431 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:23,437 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 [2021-02-19 18:33:23,444 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:23,450 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 [2021-02-19 18:33:23,456 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:23,498 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:23,507 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 8 treesize of output 7 [2021-02-19 18:33:23,508 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:23,514 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 [2021-02-19 18:33:23,515 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:23,521 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 [2021-02-19 18:33:23,522 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:23,531 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 [2021-02-19 18:33:23,532 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:23,581 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:23,594 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-02-19 18:33:23,594 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:197, output treesize:58 [2021-02-19 18:33:23,719 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 [2021-02-19 18:33:23,721 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:23,728 INFO L628 ElimStorePlain]: treesize reduction 27, result has 15.6 percent of original size [2021-02-19 18:33:23,728 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1 vanished before elimination [2021-02-19 18:33:23,734 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:33:23,734 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:5 [2021-02-19 18:33:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:23,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:23,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-02-19 18:33:23,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085983110] [2021-02-19 18:33:23,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-19 18:33:23,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:23,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-19 18:33:23,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:33:23,746 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) [2021-02-19 18:33:23,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:23,965 INFO L93 Difference]: Finished difference Result 525 states and 1652 transitions. [2021-02-19 18:33:23,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 18:33:23,966 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 [2021-02-19 18:33:23,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:23,968 INFO L225 Difference]: With dead ends: 525 [2021-02-19 18:33:23,968 INFO L226 Difference]: Without dead ends: 482 [2021-02-19 18:33:23,969 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2021-02-19 18:33:23,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-02-19 18:33:23,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 373. [2021-02-19 18:33:23,978 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) [2021-02-19 18:33:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1176 transitions. [2021-02-19 18:33:23,980 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1176 transitions. Word has length 26 [2021-02-19 18:33:23,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:23,980 INFO L480 AbstractCegarLoop]: Abstraction has 373 states and 1176 transitions. [2021-02-19 18:33:23,980 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) [2021-02-19 18:33:23,980 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1176 transitions. [2021-02-19 18:33:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 18:33:23,981 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:23,981 INFO L506 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] [2021-02-19 18:33:24,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-02-19 18:33:24,198 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:24,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:24,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1382362165, now seen corresponding path program 2 times [2021-02-19 18:33:24,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:24,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242408599] [2021-02-19 18:33:24,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:24,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:24,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242408599] [2021-02-19 18:33:24,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:33:24,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-02-19 18:33:24,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069166767] [2021-02-19 18:33:24,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 18:33:24,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:24,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 18:33:24,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 18:33:24,221 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) [2021-02-19 18:33:24,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:24,237 INFO L93 Difference]: Finished difference Result 524 states and 1595 transitions. [2021-02-19 18:33:24,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 18:33:24,238 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 [2021-02-19 18:33:24,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:24,241 INFO L225 Difference]: With dead ends: 524 [2021-02-19 18:33:24,241 INFO L226 Difference]: Without dead ends: 476 [2021-02-19 18:33:24,241 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 18:33:24,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-02-19 18:33:24,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 403. [2021-02-19 18:33:24,251 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) [2021-02-19 18:33:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 1245 transitions. [2021-02-19 18:33:24,252 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 1245 transitions. Word has length 26 [2021-02-19 18:33:24,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:24,253 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 1245 transitions. [2021-02-19 18:33:24,253 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) [2021-02-19 18:33:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 1245 transitions. [2021-02-19 18:33:24,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 18:33:24,256 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:24,256 INFO L506 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] [2021-02-19 18:33:24,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-19 18:33:24,256 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:24,257 INFO L82 PathProgramCache]: Analyzing trace with hash -616001465, now seen corresponding path program 3 times [2021-02-19 18:33:24,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:24,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099466043] [2021-02-19 18:33:24,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:24,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099466043] [2021-02-19 18:33:24,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047148650] [2021-02-19 18:33:24,553 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 [2021-02-19 18:33:24,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-02-19 18:33:24,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:24,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-02-19 18:33:24,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:24,709 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 [2021-02-19 18:33:24,711 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,721 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:24,722 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,722 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2021-02-19 18:33:24,855 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 [2021-02-19 18:33:24,858 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,863 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 [2021-02-19 18:33:24,866 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,870 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 31 treesize of output 23 [2021-02-19 18:33:24,872 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,876 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 [2021-02-19 18:33:24,877 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,917 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:24,923 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 [2021-02-19 18:33:24,927 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,932 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 35 treesize of output 23 [2021-02-19 18:33:24,936 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,939 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 [2021-02-19 18:33:24,943 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,946 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 [2021-02-19 18:33:24,950 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,978 INFO L628 ElimStorePlain]: treesize reduction 40, result has 28.6 percent of original size [2021-02-19 18:33:24,980 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:33:24,981 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:185, output treesize:16 [2021-02-19 18:33:25,043 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 [2021-02-19 18:33:25,046 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:25,047 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-02-19 18:33:25,048 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:25,049 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:25,050 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:33:25,050 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:5 [2021-02-19 18:33:25,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:25,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:25,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2021-02-19 18:33:25,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032401995] [2021-02-19 18:33:25,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-19 18:33:25,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:25,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-19 18:33:25,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-02-19 18:33:25,061 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) [2021-02-19 18:33:25,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:25,496 INFO L93 Difference]: Finished difference Result 926 states and 2795 transitions. [2021-02-19 18:33:25,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 18:33:25,498 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 [2021-02-19 18:33:25,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:25,502 INFO L225 Difference]: With dead ends: 926 [2021-02-19 18:33:25,502 INFO L226 Difference]: Without dead ends: 808 [2021-02-19 18:33:25,503 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2021-02-19 18:33:25,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2021-02-19 18:33:25,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 427. [2021-02-19 18:33:25,517 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) [2021-02-19 18:33:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1319 transitions. [2021-02-19 18:33:25,521 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1319 transitions. Word has length 26 [2021-02-19 18:33:25,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:25,522 INFO L480 AbstractCegarLoop]: Abstraction has 427 states and 1319 transitions. [2021-02-19 18:33:25,522 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) [2021-02-19 18:33:25,522 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1319 transitions. [2021-02-19 18:33:25,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-19 18:33:25,523 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:25,523 INFO L506 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] [2021-02-19 18:33:25,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:33:25,744 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:25,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:25,745 INFO L82 PathProgramCache]: Analyzing trace with hash -213312237, now seen corresponding path program 4 times [2021-02-19 18:33:25,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:25,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051702829] [2021-02-19 18:33:25,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:25,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051702829] [2021-02-19 18:33:25,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31438153] [2021-02-19 18:33:25,945 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) [2021-02-19 18:33:25,978 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 18:33:25,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:25,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2021-02-19 18:33:25,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:33:26,100 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 [2021-02-19 18:33:26,102 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,112 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:26,112 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,112 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:37 [2021-02-19 18:33:26,174 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 [2021-02-19 18:33:26,175 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-02-19 18:33:26,178 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,208 INFO L628 ElimStorePlain]: treesize reduction 15, result has 75.8 percent of original size [2021-02-19 18:33:26,209 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-02-19 18:33:26,209 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:76, output treesize:47 [2021-02-19 18:33:26,388 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 [2021-02-19 18:33:26,390 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,394 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 [2021-02-19 18:33:26,395 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,400 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 [2021-02-19 18:33:26,401 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,405 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 [2021-02-19 18:33:26,409 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,526 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2021-02-19 18:33:26,526 INFO L628 ElimStorePlain]: treesize reduction 38, result has 81.5 percent of original size [2021-02-19 18:33:26,535 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 [2021-02-19 18:33:26,537 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2021-02-19 18:33:26,542 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,560 INFO L628 ElimStorePlain]: treesize reduction 134, result has 3.6 percent of original size [2021-02-19 18:33:26,560 INFO L518 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2021-02-19 18:33:26,560 INFO L518 ElimStorePlain]: Eliminatee v_prenex_3 vanished before elimination [2021-02-19 18:33:26,560 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:33:26,560 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:257, output treesize:5 [2021-02-19 18:33:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:26,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:26,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-02-19 18:33:26,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064292127] [2021-02-19 18:33:26,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-19 18:33:26,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:26,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-19 18:33:26,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-02-19 18:33:26,576 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) [2021-02-19 18:33:26,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:26,784 INFO L93 Difference]: Finished difference Result 693 states and 2174 transitions. [2021-02-19 18:33:26,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 18:33:26,785 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 [2021-02-19 18:33:26,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:26,788 INFO L225 Difference]: With dead ends: 693 [2021-02-19 18:33:26,788 INFO L226 Difference]: Without dead ends: 604 [2021-02-19 18:33:26,789 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2021-02-19 18:33:26,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-02-19 18:33:26,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 431. [2021-02-19 18:33:26,798 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) [2021-02-19 18:33:26,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 1337 transitions. [2021-02-19 18:33:26,800 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 1337 transitions. Word has length 26 [2021-02-19 18:33:26,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:26,800 INFO L480 AbstractCegarLoop]: Abstraction has 431 states and 1337 transitions. [2021-02-19 18:33:26,800 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) [2021-02-19 18:33:26,800 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 1337 transitions. [2021-02-19 18:33:26,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-19 18:33:26,801 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:26,801 INFO L506 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] [2021-02-19 18:33:27,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-02-19 18:33:27,018 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:27,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:27,018 INFO L82 PathProgramCache]: Analyzing trace with hash -2139338845, now seen corresponding path program 5 times [2021-02-19 18:33:27,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:27,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317795202] [2021-02-19 18:33:27,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:27,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:27,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317795202] [2021-02-19 18:33:27,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624311222] [2021-02-19 18:33:27,058 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 [2021-02-19 18:33:27,115 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-02-19 18:33:27,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:27,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 18:33:27,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:27,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:27,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-02-19 18:33:27,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287438854] [2021-02-19 18:33:27,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:33:27,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:27,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:33:27,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:33:27,158 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) [2021-02-19 18:33:27,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:27,229 INFO L93 Difference]: Finished difference Result 1077 states and 3313 transitions. [2021-02-19 18:33:27,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 18:33:27,229 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 [2021-02-19 18:33:27,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:27,234 INFO L225 Difference]: With dead ends: 1077 [2021-02-19 18:33:27,234 INFO L226 Difference]: Without dead ends: 1071 [2021-02-19 18:33:27,234 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:33:27,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2021-02-19 18:33:27,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 723. [2021-02-19 18:33:27,255 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) [2021-02-19 18:33:27,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 2383 transitions. [2021-02-19 18:33:27,258 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 2383 transitions. Word has length 28 [2021-02-19 18:33:27,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:27,259 INFO L480 AbstractCegarLoop]: Abstraction has 723 states and 2383 transitions. [2021-02-19 18:33:27,259 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) [2021-02-19 18:33:27,259 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 2383 transitions. [2021-02-19 18:33:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-19 18:33:27,262 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:27,262 INFO L506 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] [2021-02-19 18:33:27,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:33:27,478 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:27,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:27,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1102073401, now seen corresponding path program 6 times [2021-02-19 18:33:27,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:27,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727792978] [2021-02-19 18:33:27,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:27,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:27,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727792978] [2021-02-19 18:33:27,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617992930] [2021-02-19 18:33:27,515 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 [2021-02-19 18:33:27,554 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-02-19 18:33:27,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:27,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-19 18:33:27,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:27,639 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:27,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:27,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-02-19 18:33:27,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392292888] [2021-02-19 18:33:27,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 18:33:27,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:27,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 18:33:27,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:33:27,642 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) [2021-02-19 18:33:28,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:28,163 INFO L93 Difference]: Finished difference Result 3105 states and 9211 transitions. [2021-02-19 18:33:28,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-19 18:33:28,163 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 [2021-02-19 18:33:28,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:28,175 INFO L225 Difference]: With dead ends: 3105 [2021-02-19 18:33:28,175 INFO L226 Difference]: Without dead ends: 2785 [2021-02-19 18:33:28,176 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=384, Invalid=1098, Unknown=0, NotChecked=0, Total=1482 [2021-02-19 18:33:28,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2021-02-19 18:33:28,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 704. [2021-02-19 18:33:28,207 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) [2021-02-19 18:33:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 2345 transitions. [2021-02-19 18:33:28,211 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 2345 transitions. Word has length 28 [2021-02-19 18:33:28,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:28,211 INFO L480 AbstractCegarLoop]: Abstraction has 704 states and 2345 transitions. [2021-02-19 18:33:28,211 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) [2021-02-19 18:33:28,211 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 2345 transitions. [2021-02-19 18:33:28,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 18:33:28,213 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:28,213 INFO L506 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] [2021-02-19 18:33:28,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-02-19 18:33:28,418 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:28,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:28,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1842018893, now seen corresponding path program 7 times [2021-02-19 18:33:28,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:28,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898873685] [2021-02-19 18:33:28,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:28,453 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:28,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898873685] [2021-02-19 18:33:28,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897661387] [2021-02-19 18:33:28,454 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 [2021-02-19 18:33:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:28,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 18:33:28,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:28,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:28,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-02-19 18:33:28,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030332027] [2021-02-19 18:33:28,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:33:28,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:28,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:33:28,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:33:28,533 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) [2021-02-19 18:33:28,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:28,616 INFO L93 Difference]: Finished difference Result 1879 states and 6186 transitions. [2021-02-19 18:33:28,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 18:33:28,617 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 [2021-02-19 18:33:28,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:28,625 INFO L225 Difference]: With dead ends: 1879 [2021-02-19 18:33:28,625 INFO L226 Difference]: Without dead ends: 1673 [2021-02-19 18:33:28,625 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:33:28,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2021-02-19 18:33:28,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1433. [2021-02-19 18:33:28,659 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) [2021-02-19 18:33:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 4886 transitions. [2021-02-19 18:33:28,664 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 4886 transitions. Word has length 29 [2021-02-19 18:33:28,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:28,665 INFO L480 AbstractCegarLoop]: Abstraction has 1433 states and 4886 transitions. [2021-02-19 18:33:28,665 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) [2021-02-19 18:33:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 4886 transitions. [2021-02-19 18:33:28,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 18:33:28,669 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:28,669 INFO L506 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] [2021-02-19 18:33:28,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:33:28,891 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:28,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:28,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1481860545, now seen corresponding path program 8 times [2021-02-19 18:33:28,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:28,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751442320] [2021-02-19 18:33:28,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:28,914 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:28,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751442320] [2021-02-19 18:33:28,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164293469] [2021-02-19 18:33:28,914 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 [2021-02-19 18:33:28,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 18:33:28,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:28,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 18:33:28,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:29,001 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:29,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:29,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-02-19 18:33:29,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040925069] [2021-02-19 18:33:29,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 18:33:29,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:29,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 18:33:29,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:33:29,002 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) [2021-02-19 18:33:29,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:29,514 INFO L93 Difference]: Finished difference Result 3885 states and 12614 transitions. [2021-02-19 18:33:29,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-02-19 18:33:29,518 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 [2021-02-19 18:33:29,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:29,535 INFO L225 Difference]: With dead ends: 3885 [2021-02-19 18:33:29,536 INFO L226 Difference]: Without dead ends: 3731 [2021-02-19 18:33:29,536 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=342, Invalid=1064, Unknown=0, NotChecked=0, Total=1406 [2021-02-19 18:33:29,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2021-02-19 18:33:29,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 2319. [2021-02-19 18:33:29,602 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) [2021-02-19 18:33:29,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 8269 transitions. [2021-02-19 18:33:29,610 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 8269 transitions. Word has length 29 [2021-02-19 18:33:29,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:29,611 INFO L480 AbstractCegarLoop]: Abstraction has 2319 states and 8269 transitions. [2021-02-19 18:33:29,611 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) [2021-02-19 18:33:29,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 8269 transitions. [2021-02-19 18:33:29,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 18:33:29,616 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:29,617 INFO L506 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] [2021-02-19 18:33:29,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-02-19 18:33:29,838 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:29,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:29,839 INFO L82 PathProgramCache]: Analyzing trace with hash 265568901, now seen corresponding path program 9 times [2021-02-19 18:33:29,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:29,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58609750] [2021-02-19 18:33:29,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:29,879 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:29,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58609750] [2021-02-19 18:33:29,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982159213] [2021-02-19 18:33:29,879 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 [2021-02-19 18:33:29,901 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-02-19 18:33:29,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:29,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 18:33:29,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:29,939 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:29,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:29,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-02-19 18:33:29,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236864458] [2021-02-19 18:33:29,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:33:29,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:29,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:33:29,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:33:29,942 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) [2021-02-19 18:33:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:30,032 INFO L93 Difference]: Finished difference Result 3632 states and 12765 transitions. [2021-02-19 18:33:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 18:33:30,033 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 [2021-02-19 18:33:30,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:30,060 INFO L225 Difference]: With dead ends: 3632 [2021-02-19 18:33:30,060 INFO L226 Difference]: Without dead ends: 3577 [2021-02-19 18:33:30,060 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-19 18:33:30,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2021-02-19 18:33:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3218. [2021-02-19 18:33:30,132 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) [2021-02-19 18:33:30,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 11601 transitions. [2021-02-19 18:33:30,143 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 11601 transitions. Word has length 29 [2021-02-19 18:33:30,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:30,143 INFO L480 AbstractCegarLoop]: Abstraction has 3218 states and 11601 transitions. [2021-02-19 18:33:30,143 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) [2021-02-19 18:33:30,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 11601 transitions. [2021-02-19 18:33:30,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 18:33:30,152 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:30,152 INFO L506 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] [2021-02-19 18:33:30,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-02-19 18:33:30,366 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:30,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:30,366 INFO L82 PathProgramCache]: Analyzing trace with hash -674554215, now seen corresponding path program 10 times [2021-02-19 18:33:30,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:30,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952081604] [2021-02-19 18:33:30,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:30,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952081604] [2021-02-19 18:33:30,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239704214] [2021-02-19 18:33:30,397 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 [2021-02-19 18:33:30,450 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 18:33:30,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:30,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 18:33:30,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:30,493 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:30,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:30,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-02-19 18:33:30,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084803430] [2021-02-19 18:33:30,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:33:30,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:30,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:33:30,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:33:30,494 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) [2021-02-19 18:33:30,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:30,587 INFO L93 Difference]: Finished difference Result 3810 states and 13405 transitions. [2021-02-19 18:33:30,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 18:33:30,588 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 [2021-02-19 18:33:30,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:30,601 INFO L225 Difference]: With dead ends: 3810 [2021-02-19 18:33:30,601 INFO L226 Difference]: Without dead ends: 3810 [2021-02-19 18:33:30,603 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-19 18:33:30,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2021-02-19 18:33:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3283. [2021-02-19 18:33:30,693 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) [2021-02-19 18:33:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 11859 transitions. [2021-02-19 18:33:30,705 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 11859 transitions. Word has length 29 [2021-02-19 18:33:30,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:30,705 INFO L480 AbstractCegarLoop]: Abstraction has 3283 states and 11859 transitions. [2021-02-19 18:33:30,706 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) [2021-02-19 18:33:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 11859 transitions. [2021-02-19 18:33:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-19 18:33:30,714 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:30,714 INFO L506 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] [2021-02-19 18:33:30,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:33:30,930 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:30,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:30,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1480793499, now seen corresponding path program 11 times [2021-02-19 18:33:30,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:30,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26629413] [2021-02-19 18:33:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:30,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:30,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26629413] [2021-02-19 18:33:30,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438412940] [2021-02-19 18:33:30,972 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 [2021-02-19 18:33:31,010 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-02-19 18:33:31,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:31,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 18:33:31,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:31,066 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:31,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:31,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-02-19 18:33:31,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603555210] [2021-02-19 18:33:31,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:33:31,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:31,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:33:31,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:33:31,067 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) [2021-02-19 18:33:31,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:31,164 INFO L93 Difference]: Finished difference Result 3694 states and 13063 transitions. [2021-02-19 18:33:31,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 18:33:31,165 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 [2021-02-19 18:33:31,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:31,174 INFO L225 Difference]: With dead ends: 3694 [2021-02-19 18:33:31,175 INFO L226 Difference]: Without dead ends: 3694 [2021-02-19 18:33:31,175 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:33:31,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2021-02-19 18:33:31,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3265. [2021-02-19 18:33:31,249 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) [2021-02-19 18:33:31,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 11712 transitions. [2021-02-19 18:33:31,259 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 11712 transitions. Word has length 29 [2021-02-19 18:33:31,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:31,259 INFO L480 AbstractCegarLoop]: Abstraction has 3265 states and 11712 transitions. [2021-02-19 18:33:31,259 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) [2021-02-19 18:33:31,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 11712 transitions. [2021-02-19 18:33:31,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-19 18:33:31,266 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:31,266 INFO L506 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] [2021-02-19 18:33:31,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:33:31,482 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:31,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:31,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1019084983, now seen corresponding path program 12 times [2021-02-19 18:33:31,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:31,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927115489] [2021-02-19 18:33:31,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:31,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927115489] [2021-02-19 18:33:31,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026697139] [2021-02-19 18:33:31,512 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 [2021-02-19 18:33:31,538 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-02-19 18:33:31,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:31,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 18:33:31,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:31,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:31,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-02-19 18:33:31,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275745025] [2021-02-19 18:33:31,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:33:31,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:31,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:33:31,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:33:31,588 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) [2021-02-19 18:33:31,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:31,673 INFO L93 Difference]: Finished difference Result 6483 states and 22245 transitions. [2021-02-19 18:33:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-19 18:33:31,673 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 [2021-02-19 18:33:31,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:31,691 INFO L225 Difference]: With dead ends: 6483 [2021-02-19 18:33:31,691 INFO L226 Difference]: Without dead ends: 6483 [2021-02-19 18:33:31,691 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:33:31,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6483 states. [2021-02-19 18:33:31,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6483 to 5087. [2021-02-19 18:33:31,826 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) [2021-02-19 18:33:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5087 states to 5087 states and 18247 transitions. [2021-02-19 18:33:31,844 INFO L78 Accepts]: Start accepts. Automaton has 5087 states and 18247 transitions. Word has length 31 [2021-02-19 18:33:31,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:31,845 INFO L480 AbstractCegarLoop]: Abstraction has 5087 states and 18247 transitions. [2021-02-19 18:33:31,846 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) [2021-02-19 18:33:31,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5087 states and 18247 transitions. [2021-02-19 18:33:31,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-19 18:33:31,856 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:31,856 INFO L506 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] [2021-02-19 18:33:32,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2021-02-19 18:33:32,074 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:32,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:32,074 INFO L82 PathProgramCache]: Analyzing trace with hash -100678035, now seen corresponding path program 13 times [2021-02-19 18:33:32,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:32,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294664937] [2021-02-19 18:33:32,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:32,118 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:32,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294664937] [2021-02-19 18:33:32,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396226065] [2021-02-19 18:33:32,118 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) [2021-02-19 18:33:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:32,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-19 18:33:32,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:33:32,255 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 18:33:32,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:32,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-02-19 18:33:32,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903481663] [2021-02-19 18:33:32,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 18:33:32,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:32,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 18:33:32,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:33:32,257 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) [2021-02-19 18:33:32,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:32,857 INFO L93 Difference]: Finished difference Result 8806 states and 29381 transitions. [2021-02-19 18:33:32,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-19 18:33:32,857 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 [2021-02-19 18:33:32,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:32,879 INFO L225 Difference]: With dead ends: 8806 [2021-02-19 18:33:32,879 INFO L226 Difference]: Without dead ends: 8704 [2021-02-19 18:33:32,879 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2021-02-19 18:33:32,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2021-02-19 18:33:33,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 5354. [2021-02-19 18:33:33,007 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) [2021-02-19 18:33:33,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 19308 transitions. [2021-02-19 18:33:33,023 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 19308 transitions. Word has length 31 [2021-02-19 18:33:33,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:33,023 INFO L480 AbstractCegarLoop]: Abstraction has 5354 states and 19308 transitions. [2021-02-19 18:33:33,023 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) [2021-02-19 18:33:33,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 19308 transitions. [2021-02-19 18:33:33,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:33:33,034 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:33,034 INFO L506 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] [2021-02-19 18:33:33,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:33:33,255 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:33,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:33,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1949632943, now seen corresponding path program 14 times [2021-02-19 18:33:33,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:33,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145615231] [2021-02-19 18:33:33,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:33,831 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 41 [2021-02-19 18:33:34,038 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 44 [2021-02-19 18:33:34,208 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 43 [2021-02-19 18:33:34,355 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 30 [2021-02-19 18:33:34,519 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:34,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145615231] [2021-02-19 18:33:34,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985781823] [2021-02-19 18:33:34,519 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 [2021-02-19 18:33:34,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 18:33:34,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:34,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-02-19 18:33:34,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:34,890 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 [2021-02-19 18:33:34,891 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,896 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 [2021-02-19 18:33:34,897 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,903 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 [2021-02-19 18:33:34,905 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,918 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 [2021-02-19 18:33:34,918 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,927 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 [2021-02-19 18:33:34,928 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,935 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 [2021-02-19 18:33:34,935 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,943 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 [2021-02-19 18:33:34,943 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,957 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 [2021-02-19 18:33:34,958 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,965 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 [2021-02-19 18:33:34,966 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,973 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 [2021-02-19 18:33:34,978 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,984 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 [2021-02-19 18:33:34,984 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,989 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 [2021-02-19 18:33:34,990 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:34,998 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 [2021-02-19 18:33:34,999 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:35,005 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 [2021-02-19 18:33:35,005 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:35,013 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 [2021-02-19 18:33:35,014 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:35,020 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 [2021-02-19 18:33:35,021 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:35,326 WARN L202 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 18:33:35,326 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:35,330 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-02-19 18:33:35,331 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 1 variables, input treesize:1249, output treesize:1233 [2021-02-19 18:33:35,694 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-02-19 18:33:35,931 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_19, v_C_14, v_prenex_6, v_prenex_9, v_prenex_10, v_prenex_43, v_prenex_31, v_prenex_40, v_prenex_25, v_prenex_13, v_prenex_46, v_prenex_34, v_prenex_22, v_prenex_28, v_prenex_16, v_prenex_37], 3=[v_prenex_8, v_prenex_32, v_prenex_30, v_prenex_36, v_prenex_14, v_prenex_35, v_prenex_12, v_prenex_33, v_prenex_11, v_prenex_18, v_prenex_39, v_prenex_17, v_prenex_38, v_prenex_15, v_prenex_4, v_prenex_5, v_prenex_7, A, B, v_prenex_21, v_prenex_42, v_prenex_20, v_prenex_41, v_prenex_47, v_prenex_24, v_prenex_23, v_prenex_45, v_prenex_44, v_prenex_29, v_prenex_27, v_prenex_48, v_prenex_26]} [2021-02-19 18:33:35,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:35,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:35,965 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:36,432 WARN L202 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-02-19 18:33:36,432 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:36,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:36,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:36,461 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:36,889 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2021-02-19 18:33:36,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:36,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:36,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:36,914 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:37,336 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2021-02-19 18:33:37,336 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:37,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:37,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:37,358 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:37,780 WARN L202 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 384 [2021-02-19 18:33:37,780 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:37,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:37,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:37,809 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:38,270 WARN L202 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2021-02-19 18:33:38,270 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:38,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:38,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:38,295 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:38,736 WARN L202 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 378 [2021-02-19 18:33:38,737 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:38,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:38,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:38,757 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:39,164 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2021-02-19 18:33:39,165 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:39,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:39,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:39,200 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:39,612 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2021-02-19 18:33:39,612 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:39,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:39,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:39,632 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:40,053 WARN L202 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2021-02-19 18:33:40,053 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:40,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:40,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:40,077 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:40,480 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2021-02-19 18:33:40,480 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:40,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:40,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:40,502 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:40,909 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2021-02-19 18:33:40,910 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:40,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:40,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:40,942 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:41,357 WARN L202 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2021-02-19 18:33:41,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:41,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:41,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:41,377 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:41,794 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2021-02-19 18:33:41,795 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:41,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:41,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:41,815 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:42,211 WARN L202 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 354 [2021-02-19 18:33:42,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:42,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:42,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:42,233 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:42,637 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 351 [2021-02-19 18:33:42,638 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:42,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:42,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:42,660 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:43,047 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 348 [2021-02-19 18:33:43,047 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:43,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:43,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:43,064 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 55 treesize of output 39 [2021-02-19 18:33:43,065 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:43,468 WARN L202 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 341 [2021-02-19 18:33:43,468 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:43,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:43,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:43,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2021-02-19 18:33:43,485 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:43,860 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2021-02-19 18:33:43,860 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:43,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:43,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:43,875 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 55 treesize of output 39 [2021-02-19 18:33:43,883 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:44,245 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2021-02-19 18:33:44,245 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:44,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:44,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:44,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:33:44,262 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:44,611 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2021-02-19 18:33:44,611 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:44,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:44,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:44,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:33:44,645 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:44,985 WARN L202 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 317 [2021-02-19 18:33:44,986 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:44,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:44,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:45,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 43 [2021-02-19 18:33:45,010 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:45,356 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 159 [2021-02-19 18:33:45,357 INFO L628 ElimStorePlain]: treesize reduction 567, result has 52.0 percent of original size [2021-02-19 18:33:45,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:45,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:45,365 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 61 treesize of output 39 [2021-02-19 18:33:45,375 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:45,511 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2021-02-19 18:33:45,511 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:45,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:45,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:45,537 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 75 treesize of output 43 [2021-02-19 18:33:45,540 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:45,846 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 143 [2021-02-19 18:33:45,847 INFO L628 ElimStorePlain]: treesize reduction 9, result has 98.4 percent of original size [2021-02-19 18:33:45,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:45,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:45,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:33:45,857 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:46,057 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 88 [2021-02-19 18:33:46,058 INFO L628 ElimStorePlain]: treesize reduction 162, result has 68.2 percent of original size [2021-02-19 18:33:46,058 INFO L518 ElimStorePlain]: Eliminatee v_prenex_18 vanished before elimination [2021-02-19 18:33:46,058 INFO L518 ElimStorePlain]: Eliminatee v_prenex_39 vanished before elimination [2021-02-19 18:33:46,058 INFO L518 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination [2021-02-19 18:33:46,058 INFO L518 ElimStorePlain]: Eliminatee v_prenex_38 vanished before elimination [2021-02-19 18:33:46,058 INFO L518 ElimStorePlain]: Eliminatee v_prenex_15 vanished before elimination [2021-02-19 18:33:46,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:46,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:46,064 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 61 treesize of output 39 [2021-02-19 18:33:46,065 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:46,139 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:46,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:46,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:46,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 41 [2021-02-19 18:33:46,147 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:46,241 INFO L628 ElimStorePlain]: treesize reduction 134, result has 55.2 percent of original size [2021-02-19 18:33:46,241 INFO L518 ElimStorePlain]: Eliminatee v_prenex_7 vanished before elimination [2021-02-19 18:33:46,242 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 18:33:46,242 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 18:33:46,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_21 vanished before elimination [2021-02-19 18:33:46,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_42 vanished before elimination [2021-02-19 18:33:46,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_20 vanished before elimination [2021-02-19 18:33:46,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_41 vanished before elimination [2021-02-19 18:33:46,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_47 vanished before elimination [2021-02-19 18:33:46,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_24 vanished before elimination [2021-02-19 18:33:46,242 INFO L518 ElimStorePlain]: Eliminatee v_prenex_23 vanished before elimination [2021-02-19 18:33:46,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:46,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:46,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:33:46,250 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:46,284 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:46,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:46,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:33:46,288 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 69 treesize of output 41 [2021-02-19 18:33:46,290 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:46,345 INFO L628 ElimStorePlain]: treesize reduction 34, result has 69.6 percent of original size [2021-02-19 18:33:46,345 INFO L518 ElimStorePlain]: Eliminatee v_prenex_29 vanished before elimination [2021-02-19 18:33:46,346 INFO L518 ElimStorePlain]: Eliminatee v_prenex_27 vanished before elimination [2021-02-19 18:33:46,346 INFO L518 ElimStorePlain]: Eliminatee v_prenex_48 vanished before elimination [2021-02-19 18:33:46,346 INFO L518 ElimStorePlain]: Eliminatee v_prenex_26 vanished before elimination [2021-02-19 18:33:46,347 INFO L550 ElimStorePlain]: Start of recursive call 1: 48 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-02-19 18:33:46,347 INFO L247 ElimStorePlain]: Needed 30 recursive calls to eliminate 48 variables, input treesize:1345, output treesize:78 [2021-02-19 18:33:46,520 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 [2021-02-19 18:33:46,521 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:46,524 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 [2021-02-19 18:33:46,526 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:46,539 INFO L628 ElimStorePlain]: treesize reduction 100, result has 4.8 percent of original size [2021-02-19 18:33:46,539 INFO L518 ElimStorePlain]: Eliminatee C vanished before elimination [2021-02-19 18:33:46,539 INFO L518 ElimStorePlain]: Eliminatee v_prenex_49 vanished before elimination [2021-02-19 18:33:46,540 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:33:46,540 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:135, output treesize:5 [2021-02-19 18:33:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:46,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:33:46,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 18:33:46,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791538030] [2021-02-19 18:33:46,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 18:33:46,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:33:46,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 18:33:46,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2021-02-19 18:33:46,553 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) [2021-02-19 18:33:46,999 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-02-19 18:33:47,937 WARN L202 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-02-19 18:33:48,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:33:48,372 INFO L93 Difference]: Finished difference Result 8320 states and 29218 transitions. [2021-02-19 18:33:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 18:33:48,372 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 [2021-02-19 18:33:48,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:33:48,388 INFO L225 Difference]: With dead ends: 8320 [2021-02-19 18:33:48,388 INFO L226 Difference]: Without dead ends: 8229 [2021-02-19 18:33:48,388 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2021-02-19 18:33:48,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2021-02-19 18:33:48,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 5803. [2021-02-19 18:33:48,505 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) [2021-02-19 18:33:48,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 20835 transitions. [2021-02-19 18:33:48,522 INFO L78 Accepts]: Start accepts. Automaton has 5803 states and 20835 transitions. Word has length 33 [2021-02-19 18:33:48,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:33:48,522 INFO L480 AbstractCegarLoop]: Abstraction has 5803 states and 20835 transitions. [2021-02-19 18:33:48,522 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) [2021-02-19 18:33:48,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5803 states and 20835 transitions. [2021-02-19 18:33:48,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:33:48,534 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:33:48,534 INFO L506 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] [2021-02-19 18:33:48,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-02-19 18:33:48,753 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:33:48,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:33:48,753 INFO L82 PathProgramCache]: Analyzing trace with hash -753320501, now seen corresponding path program 15 times [2021-02-19 18:33:48,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:33:48,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103926075] [2021-02-19 18:33:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:33:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:33:49,085 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 39 [2021-02-19 18:33:49,224 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 44 [2021-02-19 18:33:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:33:49,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103926075] [2021-02-19 18:33:49,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170977871] [2021-02-19 18:33:49,508 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 [2021-02-19 18:33:49,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-02-19 18:33:49,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:33:49,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-02-19 18:33:49,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:33:49,788 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 [2021-02-19 18:33:49,789 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,796 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 [2021-02-19 18:33:49,797 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,803 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 [2021-02-19 18:33:49,804 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,811 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 [2021-02-19 18:33:49,812 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,819 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 [2021-02-19 18:33:49,820 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-02-19 18:33:49,828 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,835 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 [2021-02-19 18:33:49,836 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,844 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 [2021-02-19 18:33:49,845 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,853 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 [2021-02-19 18:33:49,854 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,861 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 [2021-02-19 18:33:49,862 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,869 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 [2021-02-19 18:33:49,870 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,878 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 [2021-02-19 18:33:49,878 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,885 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 [2021-02-19 18:33:49,886 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,893 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 [2021-02-19 18:33:49,894 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,901 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 [2021-02-19 18:33:49,901 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:49,908 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 [2021-02-19 18:33:49,909 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:50,260 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-02-19 18:33:50,261 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:50,265 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-02-19 18:33:50,265 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 1 variables, input treesize:1153, output treesize:1137 [2021-02-19 18:33:50,627 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-02-19 18:33:51,075 WARN L202 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-19 18:33:51,797 WARN L202 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-02-19 18:33:53,136 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 24 treesize of output 26 [2021-02-19 18:33:53,137 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:53,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:53,163 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:55,299 WARN L202 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 428 DAG size of output: 408 [2021-02-19 18:33:55,300 INFO L628 ElimStorePlain]: treesize reduction 584, result has 75.0 percent of original size [2021-02-19 18:33:55,319 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 29 treesize of output 29 [2021-02-19 18:33:55,320 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:56,201 WARN L202 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 404 [2021-02-19 18:33:56,202 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:56,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:56,224 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:56,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:56,245 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:57,115 WARN L202 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 401 [2021-02-19 18:33:57,115 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:57,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:33:57,145 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:57,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:33:57,181 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:58,073 WARN L202 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 403 [2021-02-19 18:33:58,073 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:58,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:33:58,102 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:58,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 18:33:58,124 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:58,992 WARN L202 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2021-02-19 18:33:58,993 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:59,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:33:59,022 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:59,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2021-02-19 18:33:59,043 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:33:59,880 WARN L202 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 401 [2021-02-19 18:33:59,881 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:33:59,907 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 37 treesize of output 25 [2021-02-19 18:33:59,910 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:33:59,934 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 34 [2021-02-19 18:33:59,937 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:00,881 WARN L202 SmtUtils]: Spent 943.00 ms on a formula simplification that was a NOOP. DAG size: 396 [2021-02-19 18:34:00,882 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:00,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 28 [2021-02-19 18:34:00,905 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:01,747 WARN L202 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2021-02-19 18:34:01,747 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:01,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 28 [2021-02-19 18:34:01,765 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:02,784 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 381 DAG size of output: 315 [2021-02-19 18:34:02,785 INFO L628 ElimStorePlain]: treesize reduction 526, result has 66.8 percent of original size [2021-02-19 18:34:02,799 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 52 treesize of output 36 [2021-02-19 18:34:02,803 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:03,294 WARN L202 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2021-02-19 18:34:03,294 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:03,294 INFO L518 ElimStorePlain]: Eliminatee v_prenex_76 vanished before elimination [2021-02-19 18:34:03,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:03,311 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:03,692 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2021-02-19 18:34:03,692 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:03,692 INFO L518 ElimStorePlain]: Eliminatee v_prenex_75 vanished before elimination [2021-02-19 18:34:03,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:03,707 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:04,091 WARN L202 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 303 [2021-02-19 18:34:04,092 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:04,114 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 51 treesize of output 35 [2021-02-19 18:34:04,116 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:04,597 WARN L202 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 296 [2021-02-19 18:34:04,597 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:04,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:04,611 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:04,935 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 109 [2021-02-19 18:34:04,936 INFO L628 ElimStorePlain]: treesize reduction 535, result has 45.2 percent of original size [2021-02-19 18:34:04,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:04,944 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:05,137 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2021-02-19 18:34:05,138 INFO L628 ElimStorePlain]: treesize reduction 132, result has 68.5 percent of original size [2021-02-19 18:34:05,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:05,154 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:05,232 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:05,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:05,239 INFO L550 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:05,311 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:05,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-02-19 18:34:05,319 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:05,390 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:05,390 INFO L518 ElimStorePlain]: Eliminatee v_prenex_79 vanished before elimination [2021-02-19 18:34:05,390 INFO L518 ElimStorePlain]: Eliminatee v_prenex_56 vanished before elimination [2021-02-19 18:34:05,390 INFO L518 ElimStorePlain]: Eliminatee v_prenex_78 vanished before elimination [2021-02-19 18:34:05,390 INFO L518 ElimStorePlain]: Eliminatee v_prenex_55 vanished before elimination [2021-02-19 18:34:05,390 INFO L518 ElimStorePlain]: Eliminatee v_prenex_77 vanished before elimination [2021-02-19 18:34:05,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:05,396 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:05,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:05,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:05,473 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:05,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:05,536 INFO L518 ElimStorePlain]: Eliminatee v_prenex_61 vanished before elimination [2021-02-19 18:34:05,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:05,542 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:05,601 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:05,601 INFO L518 ElimStorePlain]: Eliminatee v_prenex_60 vanished before elimination [2021-02-19 18:34:05,601 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 18:34:05,607 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 18 treesize of output 20 [2021-02-19 18:34:05,608 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:05,666 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:05,666 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 18:34:05,666 INFO L518 ElimStorePlain]: Eliminatee v_prenex_80 vanished before elimination [2021-02-19 18:34:05,666 INFO L518 ElimStorePlain]: Eliminatee v_prenex_87 vanished before elimination [2021-02-19 18:34:05,666 INFO L518 ElimStorePlain]: Eliminatee v_prenex_65 vanished before elimination [2021-02-19 18:34:05,666 INFO L518 ElimStorePlain]: Eliminatee v_prenex_64 vanished before elimination [2021-02-19 18:34:05,666 INFO L518 ElimStorePlain]: Eliminatee v_prenex_86 vanished before elimination [2021-02-19 18:34:05,666 INFO L518 ElimStorePlain]: Eliminatee v_prenex_63 vanished before elimination [2021-02-19 18:34:05,666 INFO L518 ElimStorePlain]: Eliminatee v_prenex_85 vanished before elimination [2021-02-19 18:34:05,666 INFO L518 ElimStorePlain]: Eliminatee v_prenex_62 vanished before elimination [2021-02-19 18:34:05,667 INFO L518 ElimStorePlain]: Eliminatee v_prenex_84 vanished before elimination [2021-02-19 18:34:05,667 INFO L518 ElimStorePlain]: Eliminatee v_prenex_69 vanished before elimination [2021-02-19 18:34:05,667 INFO L518 ElimStorePlain]: Eliminatee v_prenex_68 vanished before elimination [2021-02-19 18:34:05,667 INFO L518 ElimStorePlain]: Eliminatee v_prenex_89 vanished before elimination [2021-02-19 18:34:05,667 INFO L518 ElimStorePlain]: Eliminatee v_prenex_67 vanished before elimination [2021-02-19 18:34:05,667 INFO L518 ElimStorePlain]: Eliminatee v_prenex_88 vanished before elimination [2021-02-19 18:34:05,667 INFO L518 ElimStorePlain]: Eliminatee v_prenex_66 vanished before elimination [2021-02-19 18:34:05,669 INFO L550 ElimStorePlain]: Start of recursive call 1: 48 dim-1 vars, End of recursive call: and 5 xjuncts. [2021-02-19 18:34:05,669 INFO L247 ElimStorePlain]: Needed 29 recursive calls to eliminate 48 variables, input treesize:2337, output treesize:133 [2021-02-19 18:34:06,049 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-02-19 18:34:06,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-02-19 18:34:06,056 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:06,189 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2021-02-19 18:34:06,189 INFO L628 ElimStorePlain]: treesize reduction 123, result has 56.7 percent of original size [2021-02-19 18:34:06,189 INFO L518 ElimStorePlain]: Eliminatee v_prenex_98 vanished before elimination [2021-02-19 18:34:06,211 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-02-19 18:34:06,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 24 [2021-02-19 18:34:06,218 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:06,228 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-02-19 18:34:06,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 1 [2021-02-19 18:34:06,229 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:06,275 INFO L628 ElimStorePlain]: treesize reduction 78, result has 36.1 percent of original size [2021-02-19 18:34:06,275 INFO L518 ElimStorePlain]: Eliminatee v_prenex_96 vanished before elimination [2021-02-19 18:34:06,275 INFO L518 ElimStorePlain]: Eliminatee v_prenex_99 vanished before elimination [2021-02-19 18:34:06,277 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 5 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-02-19 18:34:06,277 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:301, output treesize:50 [2021-02-19 18:34:06,371 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:34:06,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:34:06,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-02-19 18:34:06,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998043760] [2021-02-19 18:34:06,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-19 18:34:06,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:34:06,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-19 18:34:06,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2021-02-19 18:34:06,372 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) [2021-02-19 18:34:06,933 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-02-19 18:34:07,252 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2021-02-19 18:34:07,847 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2021-02-19 18:34:08,498 WARN L202 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-02-19 18:34:08,670 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-02-19 18:34:09,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:34:09,239 INFO L93 Difference]: Finished difference Result 8411 states and 29291 transitions. [2021-02-19 18:34:09,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-19 18:34:09,240 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 [2021-02-19 18:34:09,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:34:09,253 INFO L225 Difference]: With dead ends: 8411 [2021-02-19 18:34:09,253 INFO L226 Difference]: Without dead ends: 8158 [2021-02-19 18:34:09,253 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=262, Invalid=1378, Unknown=0, NotChecked=0, Total=1640 [2021-02-19 18:34:09,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2021-02-19 18:34:09,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 5828. [2021-02-19 18:34:09,357 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) [2021-02-19 18:34:09,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5828 states to 5828 states and 20927 transitions. [2021-02-19 18:34:09,373 INFO L78 Accepts]: Start accepts. Automaton has 5828 states and 20927 transitions. Word has length 33 [2021-02-19 18:34:09,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:34:09,374 INFO L480 AbstractCegarLoop]: Abstraction has 5828 states and 20927 transitions. [2021-02-19 18:34:09,374 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) [2021-02-19 18:34:09,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5828 states and 20927 transitions. [2021-02-19 18:34:09,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:34:09,385 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:34:09,385 INFO L506 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] [2021-02-19 18:34:09,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:34:09,598 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:34:09,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:34:09,598 INFO L82 PathProgramCache]: Analyzing trace with hash 835057743, now seen corresponding path program 16 times [2021-02-19 18:34:09,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:34:09,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770126608] [2021-02-19 18:34:09,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:34:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:34:10,079 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2021-02-19 18:34:10,230 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 44 [2021-02-19 18:34:10,379 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 35 [2021-02-19 18:34:10,532 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 41 [2021-02-19 18:34:10,667 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:34:10,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770126608] [2021-02-19 18:34:10,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107863262] [2021-02-19 18:34:10,667 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 [2021-02-19 18:34:10,692 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 18:34:10,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:34:10,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-02-19 18:34:10,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:34:10,866 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 [2021-02-19 18:34:10,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:10,874 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 [2021-02-19 18:34:10,876 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:10,883 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 [2021-02-19 18:34:10,884 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:10,891 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 [2021-02-19 18:34:10,892 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:10,971 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:10,973 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:34:10,973 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:269, output treesize:265 [2021-02-19 18:34:11,242 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-19 18:34:11,667 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 50 treesize of output 36 [2021-02-19 18:34:11,670 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:11,685 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 50 treesize of output 36 [2021-02-19 18:34:11,688 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:11,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:11,709 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:11,721 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 52 treesize of output 36 [2021-02-19 18:34:11,725 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:12,187 WARN L202 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-19 18:34:12,187 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:12,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 18:34:12,209 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:12,221 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 48 treesize of output 36 [2021-02-19 18:34:12,224 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:12,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:12,239 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:12,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:12,251 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:12,682 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-02-19 18:34:12,682 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:12,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2021-02-19 18:34:12,698 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:12,714 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 50 treesize of output 34 [2021-02-19 18:34:12,717 INFO L550 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:12,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:12,737 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:12,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:12,751 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:13,611 WARN L202 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2021-02-19 18:34:13,612 INFO L628 ElimStorePlain]: treesize reduction 20, result has 97.9 percent of original size [2021-02-19 18:34:13,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-02-19 18:34:13,627 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:13,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:13,642 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:13,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:13,660 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:13,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:13,673 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:14,012 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-02-19 18:34:14,013 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:14,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2021-02-19 18:34:14,028 INFO L550 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:14,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:14,047 INFO L550 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:14,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:14,061 INFO L550 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:14,070 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 52 treesize of output 36 [2021-02-19 18:34:14,073 INFO L550 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:14,420 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-02-19 18:34:14,421 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:14,434 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 [2021-02-19 18:34:14,436 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:14,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:14,450 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:14,464 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 [2021-02-19 18:34:14,465 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:14,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:14,478 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:14,802 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-02-19 18:34:14,803 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:14,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:14,818 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:14,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:14,834 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:14,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:14,849 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:14,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:14,860 INFO L550 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:15,142 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-02-19 18:34:15,142 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:15,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 18:34:15,158 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:15,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 18:34:15,173 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:15,187 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 18 treesize of output 20 [2021-02-19 18:34:15,188 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:15,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 18:34:15,201 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:15,465 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-02-19 18:34:15,466 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:15,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 18:34:15,482 INFO L550 ElimStorePlain]: Start of recursive call 34: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:15,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-02-19 18:34:15,498 INFO L550 ElimStorePlain]: Start of recursive call 35: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:15,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:15,515 INFO L550 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:15,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:15,532 INFO L550 ElimStorePlain]: Start of recursive call 37: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:15,788 WARN L202 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-02-19 18:34:15,788 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:15,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:15,806 INFO L550 ElimStorePlain]: Start of recursive call 38: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:15,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:15,822 INFO L550 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:15,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2021-02-19 18:34:15,842 INFO L550 ElimStorePlain]: Start of recursive call 40: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:15,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:15,856 INFO L550 ElimStorePlain]: Start of recursive call 41: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:34:16,105 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2021-02-19 18:34:16,105 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:16,118 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 16 treesize of output 18 [2021-02-19 18:34:16,119 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:16,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-02-19 18:34:16,134 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:16,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:16,148 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:16,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:16,160 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:16,367 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-02-19 18:34:16,368 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:16,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:16,382 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:16,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-02-19 18:34:16,396 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:16,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2021-02-19 18:34:16,409 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:16,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:16,421 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:16,613 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-02-19 18:34:16,613 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:16,625 INFO L550 ElimStorePlain]: Start of recursive call 1: 12 dim-1 vars, End of recursive call: and 11 xjuncts. [2021-02-19 18:34:16,625 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 12 variables, input treesize:1169, output treesize:268 [2021-02-19 18:34:16,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-02-19 18:34:16,919 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:16,938 INFO L628 ElimStorePlain]: treesize reduction 108, result has 4.4 percent of original size [2021-02-19 18:34:16,938 INFO L518 ElimStorePlain]: Eliminatee C vanished before elimination [2021-02-19 18:34:16,938 INFO L518 ElimStorePlain]: Eliminatee v_prenex_110 vanished before elimination [2021-02-19 18:34:16,938 INFO L518 ElimStorePlain]: Eliminatee v_prenex_111 vanished before elimination [2021-02-19 18:34:16,939 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:34:16,939 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:128, output treesize:5 [2021-02-19 18:34:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:34:16,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:34:16,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 18:34:16,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551996227] [2021-02-19 18:34:16,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 18:34:16,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:34:16,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 18:34:16,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2021-02-19 18:34:16,957 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) [2021-02-19 18:34:17,175 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 48 [2021-02-19 18:34:17,337 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-02-19 18:34:17,668 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2021-02-19 18:34:18,093 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2021-02-19 18:34:18,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:34:18,658 INFO L93 Difference]: Finished difference Result 10027 states and 34871 transitions. [2021-02-19 18:34:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 18:34:18,659 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 [2021-02-19 18:34:18,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:34:18,676 INFO L225 Difference]: With dead ends: 10027 [2021-02-19 18:34:18,676 INFO L226 Difference]: Without dead ends: 9878 [2021-02-19 18:34:18,677 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=182, Invalid=874, Unknown=0, NotChecked=0, Total=1056 [2021-02-19 18:34:18,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9878 states. [2021-02-19 18:34:18,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9878 to 5995. [2021-02-19 18:34:18,814 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) [2021-02-19 18:34:18,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5995 states to 5995 states and 21471 transitions. [2021-02-19 18:34:18,834 INFO L78 Accepts]: Start accepts. Automaton has 5995 states and 21471 transitions. Word has length 33 [2021-02-19 18:34:18,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:34:18,834 INFO L480 AbstractCegarLoop]: Abstraction has 5995 states and 21471 transitions. [2021-02-19 18:34:18,834 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) [2021-02-19 18:34:18,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5995 states and 21471 transitions. [2021-02-19 18:34:18,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:34:18,848 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:34:18,848 INFO L506 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] [2021-02-19 18:34:19,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable313 [2021-02-19 18:34:19,062 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:34:19,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:34:19,062 INFO L82 PathProgramCache]: Analyzing trace with hash 2031370185, now seen corresponding path program 17 times [2021-02-19 18:34:19,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:34:19,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871737865] [2021-02-19 18:34:19,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:34:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:34:19,691 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 46 [2021-02-19 18:34:20,079 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 48 [2021-02-19 18:34:20,453 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:34:20,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871737865] [2021-02-19 18:34:20,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300842317] [2021-02-19 18:34:20,454 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 [2021-02-19 18:34:20,477 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-02-19 18:34:20,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:34:20,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 34 conjunts are in the unsatisfiable core [2021-02-19 18:34:20,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:34:20,639 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 [2021-02-19 18:34:20,640 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:20,645 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 [2021-02-19 18:34:20,646 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:20,650 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 [2021-02-19 18:34:20,651 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:20,656 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 [2021-02-19 18:34:20,656 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:20,744 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:20,746 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:34:20,746 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:249, output treesize:245 [2021-02-19 18:34:20,897 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-02-19 18:34:21,211 WARN L202 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-02-19 18:34:21,579 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-19 18:34:22,013 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-02-19 18:34:22,955 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_118, v_C_20, v_prenex_130, v_prenex_121, v_prenex_124, v_prenex_114, v_prenex_127, v_prenex_117], 3=[v_prenex_120, v_prenex_131, v_prenex_132, v_prenex_122, v_prenex_112, v_prenex_123, v_prenex_113, v_prenex_125, v_prenex_115, v_prenex_126, v_prenex_116, v_prenex_128, v_prenex_129, A, v_prenex_119, B]} [2021-02-19 18:34:22,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:22,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:34:22,982 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:22,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:23,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:23,004 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:23,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:23,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:23,023 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:23,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:23,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 18:34:23,039 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:24,935 WARN L202 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 250 DAG size of output: 236 [2021-02-19 18:34:24,936 INFO L628 ElimStorePlain]: treesize reduction 662, result has 75.0 percent of original size [2021-02-19 18:34:24,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:24,953 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 37 treesize of output 35 [2021-02-19 18:34:24,954 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:24,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:24,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:24,971 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:25,861 WARN L202 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2021-02-19 18:34:25,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:25,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:25,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:25,879 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:25,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:25,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:25,899 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:25,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:25,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:25,917 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:25,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:25,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:25,933 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:26,818 WARN L202 SmtUtils]: Spent 884.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2021-02-19 18:34:26,819 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:26,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:26,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:26,837 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:26,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:26,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:26,855 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:26,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:26,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:26,873 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:26,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:26,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:26,892 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:27,763 WARN L202 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-02-19 18:34:27,763 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:27,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:27,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:27,782 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:27,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:27,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:27,801 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:27,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:27,819 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 37 treesize of output 35 [2021-02-19 18:34:27,820 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:27,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:27,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:27,838 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:28,674 WARN L202 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-02-19 18:34:28,675 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:28,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:28,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-02-19 18:34:28,694 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:28,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:28,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:28,711 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:29,606 WARN L202 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2021-02-19 18:34:29,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:29,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:29,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:29,625 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:29,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:29,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:29,642 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:29,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:29,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:29,660 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:29,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:29,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:29,676 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:30,490 WARN L202 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-02-19 18:34:30,491 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:30,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:30,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:30,509 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:30,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:30,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:30,526 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:31,331 WARN L202 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2021-02-19 18:34:31,331 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:31,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:31,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:31,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-02-19 18:34:31,351 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:31,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:31,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:31,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2021-02-19 18:34:31,365 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:32,134 WARN L202 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2021-02-19 18:34:32,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:32,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:32,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:32,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:32,154 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:32,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:32,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:32,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:32,173 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:32,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:32,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:32,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 41 [2021-02-19 18:34:32,196 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:32,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:32,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:32,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:32,211 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:33,595 WARN L202 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 206 DAG size of output: 204 [2021-02-19 18:34:33,596 INFO L628 ElimStorePlain]: treesize reduction 114, result has 94.0 percent of original size [2021-02-19 18:34:33,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:33,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:33,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2021-02-19 18:34:33,612 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:33,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:33,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:33,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 41 [2021-02-19 18:34:33,625 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:34,063 WARN L202 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 68 [2021-02-19 18:34:34,064 INFO L628 ElimStorePlain]: treesize reduction 1308, result has 23.2 percent of original size [2021-02-19 18:34:34,064 INFO L518 ElimStorePlain]: Eliminatee v_prenex_122 vanished before elimination [2021-02-19 18:34:34,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:34,074 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:34,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,080 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 65 treesize of output 41 [2021-02-19 18:34:34,082 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:34,190 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-19 18:34:34,191 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:34,191 INFO L518 ElimStorePlain]: Eliminatee v_prenex_123 vanished before elimination [2021-02-19 18:34:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2021-02-19 18:34:34,201 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:34,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:34,207 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:34,317 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2021-02-19 18:34:34,317 INFO L628 ElimStorePlain]: treesize reduction 118, result has 58.0 percent of original size [2021-02-19 18:34:34,317 INFO L518 ElimStorePlain]: Eliminatee v_prenex_125 vanished before elimination [2021-02-19 18:34:34,317 INFO L518 ElimStorePlain]: Eliminatee v_prenex_115 vanished before elimination [2021-02-19 18:34:34,317 INFO L518 ElimStorePlain]: Eliminatee v_prenex_126 vanished before elimination [2021-02-19 18:34:34,317 INFO L518 ElimStorePlain]: Eliminatee v_prenex_116 vanished before elimination [2021-02-19 18:34:34,318 INFO L518 ElimStorePlain]: Eliminatee v_prenex_128 vanished before elimination [2021-02-19 18:34:34,318 INFO L518 ElimStorePlain]: Eliminatee v_prenex_129 vanished before elimination [2021-02-19 18:34:34,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:34,324 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:34,364 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:34,364 INFO L518 ElimStorePlain]: Eliminatee v_prenex_119 vanished before elimination [2021-02-19 18:34:34,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:34,368 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 52 treesize of output 30 [2021-02-19 18:34:34,370 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:34,460 INFO L628 ElimStorePlain]: treesize reduction 36, result has 68.4 percent of original size [2021-02-19 18:34:34,461 INFO L550 ElimStorePlain]: Start of recursive call 1: 24 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-02-19 18:34:34,461 INFO L247 ElimStorePlain]: Needed 41 recursive calls to eliminate 24 variables, input treesize:2657, output treesize:78 [2021-02-19 18:34:34,559 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 [2021-02-19 18:34:34,561 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:34,565 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 [2021-02-19 18:34:34,567 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:34,582 INFO L628 ElimStorePlain]: treesize reduction 88, result has 5.4 percent of original size [2021-02-19 18:34:34,582 INFO L518 ElimStorePlain]: Eliminatee v_prenex_133 vanished before elimination [2021-02-19 18:34:34,582 INFO L518 ElimStorePlain]: Eliminatee v_prenex_134 vanished before elimination [2021-02-19 18:34:34,583 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:34:34,583 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:135, output treesize:5 [2021-02-19 18:34:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:34:34,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:34:34,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2021-02-19 18:34:34,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993629962] [2021-02-19 18:34:34,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 18:34:34,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:34:34,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 18:34:34,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2021-02-19 18:34:34,599 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) [2021-02-19 18:34:34,807 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-02-19 18:34:35,008 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2021-02-19 18:34:35,498 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2021-02-19 18:34:36,248 WARN L202 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-02-19 18:34:36,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:34:36,815 INFO L93 Difference]: Finished difference Result 8627 states and 29955 transitions. [2021-02-19 18:34:36,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 18:34:36,816 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 [2021-02-19 18:34:36,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:34:36,835 INFO L225 Difference]: With dead ends: 8627 [2021-02-19 18:34:36,835 INFO L226 Difference]: Without dead ends: 8310 [2021-02-19 18:34:36,837 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2021-02-19 18:34:36,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2021-02-19 18:34:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 6027. [2021-02-19 18:34:36,957 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) [2021-02-19 18:34:36,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6027 states to 6027 states and 21552 transitions. [2021-02-19 18:34:36,977 INFO L78 Accepts]: Start accepts. Automaton has 6027 states and 21552 transitions. Word has length 33 [2021-02-19 18:34:36,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:34:36,977 INFO L480 AbstractCegarLoop]: Abstraction has 6027 states and 21552 transitions. [2021-02-19 18:34:36,977 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) [2021-02-19 18:34:36,977 INFO L276 IsEmpty]: Start isEmpty. Operand 6027 states and 21552 transitions. [2021-02-19 18:34:36,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:34:36,988 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:34:36,988 INFO L506 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] [2021-02-19 18:34:37,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:34:37,202 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:34:37,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:34:37,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1285432143, now seen corresponding path program 18 times [2021-02-19 18:34:37,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:34:37,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752124826] [2021-02-19 18:34:37,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:34:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:34:37,558 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 38 [2021-02-19 18:34:37,734 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 43 [2021-02-19 18:34:37,896 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 49 [2021-02-19 18:34:38,031 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 47 [2021-02-19 18:34:38,165 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:34:38,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752124826] [2021-02-19 18:34:38,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636068997] [2021-02-19 18:34:38,166 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 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 [2021-02-19 18:34:38,194 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-02-19 18:34:38,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:34:38,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 27 conjunts are in the unsatisfiable core [2021-02-19 18:34:38,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:34:38,365 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 [2021-02-19 18:34:38,366 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:38,371 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 18 treesize of output 17 [2021-02-19 18:34:38,372 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:38,376 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 [2021-02-19 18:34:38,377 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:38,382 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 [2021-02-19 18:34:38,383 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:38,505 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-02-19 18:34:38,505 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:38,506 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:34:38,507 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:277, output treesize:273 [2021-02-19 18:34:38,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:38,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:38,647 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:38,772 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-19 18:34:38,772 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:38,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:38,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:38,783 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:38,905 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-19 18:34:38,906 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:38,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:38,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 18:34:38,916 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:39,037 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-19 18:34:39,037 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:39,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:39,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:39,049 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:39,143 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:39,145 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:34:39,145 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:309, output treesize:305 [2021-02-19 18:34:39,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:39,559 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:39,573 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 49 treesize of output 35 [2021-02-19 18:34:39,575 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:39,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-02-19 18:34:39,591 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:39,600 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 49 treesize of output 35 [2021-02-19 18:34:39,602 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,012 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-02-19 18:34:40,013 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:40,032 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 57 treesize of output 37 [2021-02-19 18:34:40,034 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:40,046 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-02-19 18:34:40,057 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-02-19 18:34:40,066 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,389 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 49 [2021-02-19 18:34:40,389 INFO L628 ElimStorePlain]: treesize reduction 623, result has 35.5 percent of original size [2021-02-19 18:34:40,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 18:34:40,398 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:40,405 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:40,413 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,417 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 49 treesize of output 35 [2021-02-19 18:34:40,418 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,498 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:40,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:40,506 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 33 [2021-02-19 18:34:40,515 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 37 [2021-02-19 18:34:40,524 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:40,531 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,583 INFO L628 ElimStorePlain]: treesize reduction 97, result has 34.5 percent of original size [2021-02-19 18:34:40,584 INFO L518 ElimStorePlain]: Eliminatee v_prenex_142 vanished before elimination [2021-02-19 18:34:40,584 INFO L518 ElimStorePlain]: Eliminatee v_prenex_143 vanished before elimination [2021-02-19 18:34:40,584 INFO L518 ElimStorePlain]: Eliminatee v_prenex_138 vanished before elimination [2021-02-19 18:34:40,584 INFO L518 ElimStorePlain]: Eliminatee v_prenex_139 vanished before elimination [2021-02-19 18:34:40,585 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-02-19 18:34:40,585 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:1169, output treesize:47 [2021-02-19 18:34:40,764 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 [2021-02-19 18:34:40,766 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,774 INFO L628 ElimStorePlain]: treesize reduction 41, result has 10.9 percent of original size [2021-02-19 18:34:40,775 INFO L518 ElimStorePlain]: Eliminatee v_prenex_144 vanished before elimination [2021-02-19 18:34:40,775 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:34:40,775 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:5 [2021-02-19 18:34:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:34:40,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:34:40,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 18:34:40,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579322484] [2021-02-19 18:34:40,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 18:34:40,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:34:40,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 18:34:40,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2021-02-19 18:34:40,788 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) [2021-02-19 18:34:41,071 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2021-02-19 18:34:41,378 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2021-02-19 18:34:41,680 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-02-19 18:34:42,053 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2021-02-19 18:34:42,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:34:42,592 INFO L93 Difference]: Finished difference Result 8561 states and 29979 transitions. [2021-02-19 18:34:42,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 18:34:42,593 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 [2021-02-19 18:34:42,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:34:42,610 INFO L225 Difference]: With dead ends: 8561 [2021-02-19 18:34:42,610 INFO L226 Difference]: Without dead ends: 8478 [2021-02-19 18:34:42,611 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=164, Invalid=766, Unknown=0, NotChecked=0, Total=930 [2021-02-19 18:34:42,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2021-02-19 18:34:42,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 6135. [2021-02-19 18:34:42,721 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) [2021-02-19 18:34:42,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6135 states to 6135 states and 21934 transitions. [2021-02-19 18:34:42,741 INFO L78 Accepts]: Start accepts. Automaton has 6135 states and 21934 transitions. Word has length 33 [2021-02-19 18:34:42,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:34:42,741 INFO L480 AbstractCegarLoop]: Abstraction has 6135 states and 21934 transitions. [2021-02-19 18:34:42,741 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) [2021-02-19 18:34:42,741 INFO L276 IsEmpty]: Start isEmpty. Operand 6135 states and 21934 transitions. [2021-02-19 18:34:42,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:34:42,753 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:34:42,753 INFO L506 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] [2021-02-19 18:34:42,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable522 [2021-02-19 18:34:42,966 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:34:42,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:34:42,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1956565763, now seen corresponding path program 19 times [2021-02-19 18:34:42,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:34:42,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458380705] [2021-02-19 18:34:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:34:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:34:43,339 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2021-02-19 18:34:43,525 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 41 [2021-02-19 18:34:43,781 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 47 [2021-02-19 18:34:44,000 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 52 [2021-02-19 18:34:44,219 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:34:44,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458380705] [2021-02-19 18:34:44,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580328350] [2021-02-19 18:34:44,220 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 [2021-02-19 18:34:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:34:44,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-02-19 18:34:44,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:34:44,421 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 [2021-02-19 18:34:44,422 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:44,427 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 [2021-02-19 18:34:44,428 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:44,434 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 [2021-02-19 18:34:44,435 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:44,440 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 [2021-02-19 18:34:44,440 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:44,527 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:44,529 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:34:44,529 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:269, output treesize:265 [2021-02-19 18:34:44,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:44,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:44,675 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:44,773 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:44,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:44,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:44,784 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:44,879 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:44,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:44,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:44,888 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:44,980 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:44,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:44,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:44,989 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:45,078 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:45,080 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:34:45,080 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:301, output treesize:297 [2021-02-19 18:34:45,456 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-19 18:34:47,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:47,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:47,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:47,069 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:47,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:47,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:47,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:47,102 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:49,659 WARN L202 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 360 DAG size of output: 347 [2021-02-19 18:34:49,660 INFO L628 ElimStorePlain]: treesize reduction 321, result has 87.4 percent of original size [2021-02-19 18:34:49,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:49,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:49,678 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 46 treesize of output 26 [2021-02-19 18:34:49,680 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:51,141 WARN L202 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 339 DAG size of output: 292 [2021-02-19 18:34:51,142 INFO L628 ElimStorePlain]: treesize reduction 865, result has 60.6 percent of original size [2021-02-19 18:34:51,143 INFO L518 ElimStorePlain]: Eliminatee v_prenex_162 vanished before elimination [2021-02-19 18:34:51,143 INFO L518 ElimStorePlain]: Eliminatee v_prenex_163 vanished before elimination [2021-02-19 18:34:51,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:51,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:51,158 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 55 treesize of output 39 [2021-02-19 18:34:51,160 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:51,668 WARN L202 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2021-02-19 18:34:51,668 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:51,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:51,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:51,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:51,685 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:52,190 WARN L202 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-02-19 18:34:52,191 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:52,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:52,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:52,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:52,212 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:52,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:52,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:52,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:52,229 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:52,712 WARN L202 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2021-02-19 18:34:52,713 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:52,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:52,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:52,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:52,735 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:52,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:52,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:52,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:52,753 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:53,675 WARN L202 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 260 [2021-02-19 18:34:53,676 INFO L628 ElimStorePlain]: treesize reduction 51, result has 95.8 percent of original size [2021-02-19 18:34:53,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:53,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:53,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:53,691 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:54,123 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-02-19 18:34:54,124 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:54,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,137 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 63 treesize of output 41 [2021-02-19 18:34:54,139 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:54,563 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 90 [2021-02-19 18:34:54,564 INFO L628 ElimStorePlain]: treesize reduction 592, result has 45.8 percent of original size [2021-02-19 18:34:54,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_148 vanished before elimination [2021-02-19 18:34:54,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_149 vanished before elimination [2021-02-19 18:34:54,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_170 vanished before elimination [2021-02-19 18:34:54,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_171 vanished before elimination [2021-02-19 18:34:54,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:54,579 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:54,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-02-19 18:34:54,591 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:54,745 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-19 18:34:54,745 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:54,745 INFO L518 ElimStorePlain]: Eliminatee v_prenex_150 vanished before elimination [2021-02-19 18:34:54,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:54,757 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:54,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,764 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 52 treesize of output 30 [2021-02-19 18:34:54,766 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:54,902 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2021-02-19 18:34:54,903 INFO L628 ElimStorePlain]: treesize reduction 231, result has 41.4 percent of original size [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_151 vanished before elimination [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_174 vanished before elimination [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_152 vanished before elimination [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_175 vanished before elimination [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_153 vanished before elimination [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_176 vanished before elimination [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_154 vanished before elimination [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_177 vanished before elimination [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_155 vanished before elimination [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_156 vanished before elimination [2021-02-19 18:34:54,903 INFO L518 ElimStorePlain]: Eliminatee v_prenex_157 vanished before elimination [2021-02-19 18:34:54,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:34:54,910 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:54,956 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:54,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:54,961 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 52 treesize of output 30 [2021-02-19 18:34:54,963 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:55,059 INFO L628 ElimStorePlain]: treesize reduction 36, result has 68.4 percent of original size [2021-02-19 18:34:55,060 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 18:34:55,060 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 18:34:55,061 INFO L550 ElimStorePlain]: Start of recursive call 1: 32 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-02-19 18:34:55,061 INFO L247 ElimStorePlain]: Needed 18 recursive calls to eliminate 32 variables, input treesize:2593, output treesize:78 [2021-02-19 18:34:55,190 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 [2021-02-19 18:34:55,192 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:55,196 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 [2021-02-19 18:34:55,197 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:55,211 INFO L628 ElimStorePlain]: treesize reduction 61, result has 7.6 percent of original size [2021-02-19 18:34:55,212 INFO L518 ElimStorePlain]: Eliminatee v_prenex_178 vanished before elimination [2021-02-19 18:34:55,212 INFO L518 ElimStorePlain]: Eliminatee v_prenex_179 vanished before elimination [2021-02-19 18:34:55,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:34:55,213 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:108, output treesize:5 [2021-02-19 18:34:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:34:55,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:34:55,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 18:34:55,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409776377] [2021-02-19 18:34:55,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 18:34:55,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:34:55,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 18:34:55,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-02-19 18:34:55,231 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) [2021-02-19 18:34:55,541 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-02-19 18:34:55,782 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-02-19 18:34:56,195 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2021-02-19 18:34:56,519 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2021-02-19 18:34:56,947 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2021-02-19 18:34:57,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:34:57,428 INFO L93 Difference]: Finished difference Result 9093 states and 31725 transitions. [2021-02-19 18:34:57,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-19 18:34:57,429 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 [2021-02-19 18:34:57,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:34:57,446 INFO L225 Difference]: With dead ends: 9093 [2021-02-19 18:34:57,446 INFO L226 Difference]: Without dead ends: 8883 [2021-02-19 18:34:57,447 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=205, Invalid=985, Unknown=0, NotChecked=0, Total=1190 [2021-02-19 18:34:57,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8883 states. [2021-02-19 18:34:57,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8883 to 6225. [2021-02-19 18:34:57,573 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) [2021-02-19 18:34:57,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6225 states to 6225 states and 22224 transitions. [2021-02-19 18:34:57,594 INFO L78 Accepts]: Start accepts. Automaton has 6225 states and 22224 transitions. Word has length 33 [2021-02-19 18:34:57,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:34:57,594 INFO L480 AbstractCegarLoop]: Abstraction has 6225 states and 22224 transitions. [2021-02-19 18:34:57,594 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) [2021-02-19 18:34:57,594 INFO L276 IsEmpty]: Start isEmpty. Operand 6225 states and 22224 transitions. [2021-02-19 18:34:57,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:34:57,608 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:34:57,608 INFO L506 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] [2021-02-19 18:34:57,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable578 [2021-02-19 18:34:57,833 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:34:57,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:34:57,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1989892815, now seen corresponding path program 20 times [2021-02-19 18:34:57,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:34:57,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790465581] [2021-02-19 18:34:57,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:34:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:34:58,221 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 25 [2021-02-19 18:34:58,429 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 30 [2021-02-19 18:34:58,655 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 35 [2021-02-19 18:34:58,825 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 33 [2021-02-19 18:34:58,988 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 29 [2021-02-19 18:34:59,159 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 18 [2021-02-19 18:34:59,195 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:34:59,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790465581] [2021-02-19 18:34:59,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405034234] [2021-02-19 18:34:59,195 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 [2021-02-19 18:34:59,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 18:34:59,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:34:59,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-02-19 18:34:59,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:34:59,411 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 [2021-02-19 18:34:59,413 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:59,419 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 [2021-02-19 18:34:59,420 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:59,426 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 [2021-02-19 18:34:59,428 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:59,434 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 [2021-02-19 18:34:59,435 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:59,532 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:59,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:34:59,534 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:269, output treesize:265 [2021-02-19 18:34:59,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:59,689 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 30 treesize of output 32 [2021-02-19 18:34:59,691 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:59,796 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-19 18:34:59,796 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:59,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:59,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 18:34:59,812 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:34:59,911 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:34:59,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:34:59,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:34:59,922 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:00,020 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:00,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:00,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:00,030 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:00,127 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:00,128 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:35:00,128 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:301, output treesize:297 [2021-02-19 18:35:00,680 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2021-02-19 18:35:00,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:00,741 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 [2021-02-19 18:35:00,743 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:00,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:00,753 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 [2021-02-19 18:35:00,754 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:01,261 WARN L202 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-02-19 18:35:01,262 INFO L628 ElimStorePlain]: treesize reduction 129, result has 84.1 percent of original size [2021-02-19 18:35:01,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:01,270 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 [2021-02-19 18:35:01,272 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:01,547 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-02-19 18:35:01,547 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:01,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:01,555 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 [2021-02-19 18:35:01,557 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:01,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:01,563 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 [2021-02-19 18:35:01,565 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:01,972 WARN L202 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-02-19 18:35:01,973 INFO L628 ElimStorePlain]: treesize reduction 65, result has 89.4 percent of original size [2021-02-19 18:35:01,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:01,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2021-02-19 18:35:01,983 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:01,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:01,990 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 [2021-02-19 18:35:01,992 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:02,175 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-19 18:35:02,176 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:02,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:02,182 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 [2021-02-19 18:35:02,184 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:02,358 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-19 18:35:02,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:02,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:02,367 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 [2021-02-19 18:35:02,369 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:02,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:02,375 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 [2021-02-19 18:35:02,376 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:02,519 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 18:35:02,520 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:02,522 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-02-19 18:35:02,522 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:859, output treesize:423 [2021-02-19 18:35:02,703 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 18:35:03,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:03,424 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:03,448 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 27 treesize of output 17 [2021-02-19 18:35:03,451 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:03,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:03,480 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:03,493 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 29 treesize of output 17 [2021-02-19 18:35:03,494 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:04,736 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 246 [2021-02-19 18:35:04,737 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:04,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-02-19 18:35:04,756 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:04,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-02-19 18:35:04,770 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:06,143 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 234 DAG size of output: 177 [2021-02-19 18:35:06,144 INFO L628 ElimStorePlain]: treesize reduction 708, result has 56.5 percent of original size [2021-02-19 18:35:06,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:06,154 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:06,697 WARN L202 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-02-19 18:35:06,698 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:06,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:06,708 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:06,925 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 5 [2021-02-19 18:35:06,926 INFO L628 ElimStorePlain]: treesize reduction 870, result has 0.6 percent of original size [2021-02-19 18:35:06,926 INFO L518 ElimStorePlain]: Eliminatee v_prenex_194 vanished before elimination [2021-02-19 18:35:06,926 INFO L518 ElimStorePlain]: Eliminatee v_prenex_195 vanished before elimination [2021-02-19 18:35:06,926 INFO L518 ElimStorePlain]: Eliminatee v_prenex_196 vanished before elimination [2021-02-19 18:35:06,926 INFO L518 ElimStorePlain]: Eliminatee v_prenex_197 vanished before elimination [2021-02-19 18:35:06,926 INFO L518 ElimStorePlain]: Eliminatee v_prenex_198 vanished before elimination [2021-02-19 18:35:06,926 INFO L518 ElimStorePlain]: Eliminatee v_prenex_199 vanished before elimination [2021-02-19 18:35:06,926 INFO L518 ElimStorePlain]: Eliminatee v_prenex_188 vanished before elimination [2021-02-19 18:35:06,927 INFO L518 ElimStorePlain]: Eliminatee v_prenex_200 vanished before elimination [2021-02-19 18:35:06,927 INFO L518 ElimStorePlain]: Eliminatee v_prenex_189 vanished before elimination [2021-02-19 18:35:06,927 INFO L518 ElimStorePlain]: Eliminatee v_prenex_201 vanished before elimination [2021-02-19 18:35:06,927 INFO L518 ElimStorePlain]: Eliminatee v_prenex_202 vanished before elimination [2021-02-19 18:35:06,927 INFO L518 ElimStorePlain]: Eliminatee v_prenex_203 vanished before elimination [2021-02-19 18:35:06,927 INFO L518 ElimStorePlain]: Eliminatee v_prenex_204 vanished before elimination [2021-02-19 18:35:06,927 INFO L518 ElimStorePlain]: Eliminatee v_prenex_205 vanished before elimination [2021-02-19 18:35:06,927 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 18:35:06,927 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 18:35:06,928 INFO L550 ElimStorePlain]: Start of recursive call 1: 20 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:35:06,928 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 20 variables, input treesize:1801, output treesize:5 [2021-02-19 18:35:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:35:06,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:35:06,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 18:35:06,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709844232] [2021-02-19 18:35:06,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 18:35:06,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:35:06,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 18:35:06,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-02-19 18:35:06,956 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) [2021-02-19 18:35:07,587 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2021-02-19 18:35:07,980 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2021-02-19 18:35:08,316 WARN L202 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2021-02-19 18:35:08,707 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2021-02-19 18:35:09,269 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2021-02-19 18:35:09,736 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2021-02-19 18:35:09,959 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-19 18:35:10,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:35:10,027 INFO L93 Difference]: Finished difference Result 8764 states and 30577 transitions. [2021-02-19 18:35:10,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-19 18:35:10,028 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 [2021-02-19 18:35:10,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:35:10,043 INFO L225 Difference]: With dead ends: 8764 [2021-02-19 18:35:10,043 INFO L226 Difference]: Without dead ends: 8632 [2021-02-19 18:35:10,044 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2021-02-19 18:35:10,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8632 states. [2021-02-19 18:35:10,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8632 to 6218. [2021-02-19 18:35:10,164 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) [2021-02-19 18:35:10,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 22201 transitions. [2021-02-19 18:35:10,181 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 22201 transitions. Word has length 33 [2021-02-19 18:35:10,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:35:10,181 INFO L480 AbstractCegarLoop]: Abstraction has 6218 states and 22201 transitions. [2021-02-19 18:35:10,182 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) [2021-02-19 18:35:10,182 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 22201 transitions. [2021-02-19 18:35:10,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:35:10,190 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:35:10,190 INFO L506 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] [2021-02-19 18:35:10,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable832 [2021-02-19 18:35:10,391 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:35:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:35:10,391 INFO L82 PathProgramCache]: Analyzing trace with hash -346836115, now seen corresponding path program 21 times [2021-02-19 18:35:10,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:35:10,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83972647] [2021-02-19 18:35:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:35:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:35:10,729 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2021-02-19 18:35:10,874 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2021-02-19 18:35:11,015 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2021-02-19 18:35:11,147 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2021-02-19 18:35:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:35:11,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83972647] [2021-02-19 18:35:11,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126551576] [2021-02-19 18:35:11,416 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 [2021-02-19 18:35:11,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-02-19 18:35:11,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:35:11,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-02-19 18:35:11,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:35:11,726 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 [2021-02-19 18:35:11,727 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:11,733 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 [2021-02-19 18:35:11,735 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:11,740 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 [2021-02-19 18:35:11,751 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:11,757 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 [2021-02-19 18:35:11,758 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:11,871 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 18:35:11,872 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:11,874 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:35:11,874 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:289, output treesize:285 [2021-02-19 18:35:12,035 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 18:35:12,342 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-02-19 18:35:12,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:12,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 18:35:12,423 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:12,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:12,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:12,433 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:12,842 WARN L202 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2021-02-19 18:35:12,843 INFO L628 ElimStorePlain]: treesize reduction 158, result has 75.0 percent of original size [2021-02-19 18:35:12,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:12,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:12,856 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:12,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:12,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:12,866 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:13,038 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-19 18:35:13,039 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:13,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:13,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:13,051 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:13,231 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-19 18:35:13,232 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:13,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:13,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:13,249 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:13,427 WARN L202 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-02-19 18:35:13,427 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:13,430 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-02-19 18:35:13,430 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:633, output treesize:475 [2021-02-19 18:35:13,681 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-02-19 18:35:13,916 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-19 18:35:14,174 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-19 18:35:14,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:14,340 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:14,341 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 [2021-02-19 18:35:14,346 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-02-19 18:35:14,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:14,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:14,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-02-19 18:35:14,357 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:15,286 WARN L202 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2021-02-19 18:35:15,287 INFO L628 ElimStorePlain]: treesize reduction 187, result has 82.9 percent of original size [2021-02-19 18:35:15,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:15,296 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 [2021-02-19 18:35:15,299 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:15,759 WARN L202 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-19 18:35:15,759 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:15,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:15,786 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:15,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-02-19 18:35:15,791 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-02-19 18:35:15,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:15,799 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 [2021-02-19 18:35:15,800 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:16,655 WARN L202 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2021-02-19 18:35:16,655 INFO L628 ElimStorePlain]: treesize reduction 34, result has 96.2 percent of original size [2021-02-19 18:35:16,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:16,687 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:16,688 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 [2021-02-19 18:35:16,694 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-02-19 18:35:16,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:16,705 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 [2021-02-19 18:35:16,708 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:17,618 WARN L202 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-02-19 18:35:17,619 INFO L628 ElimStorePlain]: treesize reduction 34, result has 96.0 percent of original size [2021-02-19 18:35:17,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:17,630 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 [2021-02-19 18:35:17,633 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:17,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:17,664 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:17,664 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 [2021-02-19 18:35:17,675 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2021-02-19 18:35:18,303 WARN L202 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2021-02-19 18:35:18,304 INFO L628 ElimStorePlain]: treesize reduction 103, result has 87.4 percent of original size [2021-02-19 18:35:18,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:18,310 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 [2021-02-19 18:35:18,312 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:18,907 WARN L202 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2021-02-19 18:35:18,908 INFO L628 ElimStorePlain]: treesize reduction 14, result has 98.0 percent of original size [2021-02-19 18:35:18,914 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 6 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-02-19 18:35:18,914 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:1087, output treesize:749 [2021-02-19 18:35:19,424 WARN L202 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2021-02-19 18:35:19,653 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 18:35:20,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:20,649 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:20,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 18:35:20,671 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:22,239 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 400 [2021-02-19 18:35:22,240 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:22,267 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 27 treesize of output 15 [2021-02-19 18:35:22,270 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:22,290 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 25 treesize of output 15 [2021-02-19 18:35:22,293 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:23,866 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 389 DAG size of output: 237 [2021-02-19 18:35:23,867 INFO L628 ElimStorePlain]: treesize reduction 822, result has 53.2 percent of original size [2021-02-19 18:35:23,867 INFO L518 ElimStorePlain]: Eliminatee v_prenex_220 vanished before elimination [2021-02-19 18:35:23,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 18:35:23,887 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:23,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2021-02-19 18:35:23,902 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:24,463 WARN L202 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 230 [2021-02-19 18:35:24,464 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:24,464 INFO L518 ElimStorePlain]: Eliminatee v_prenex_221 vanished before elimination [2021-02-19 18:35:24,484 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 27 treesize of output 15 [2021-02-19 18:35:24,487 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:24,500 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 25 treesize of output 15 [2021-02-19 18:35:24,502 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:24,725 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 5 [2021-02-19 18:35:24,726 INFO L628 ElimStorePlain]: treesize reduction 844, result has 0.6 percent of original size [2021-02-19 18:35:24,726 INFO L518 ElimStorePlain]: Eliminatee v_prenex_222 vanished before elimination [2021-02-19 18:35:24,726 INFO L518 ElimStorePlain]: Eliminatee v_prenex_244 vanished before elimination [2021-02-19 18:35:24,726 INFO L518 ElimStorePlain]: Eliminatee v_prenex_223 vanished before elimination [2021-02-19 18:35:24,726 INFO L518 ElimStorePlain]: Eliminatee v_prenex_245 vanished before elimination [2021-02-19 18:35:24,726 INFO L518 ElimStorePlain]: Eliminatee v_prenex_224 vanished before elimination [2021-02-19 18:35:24,726 INFO L518 ElimStorePlain]: Eliminatee v_prenex_246 vanished before elimination [2021-02-19 18:35:24,726 INFO L518 ElimStorePlain]: Eliminatee v_prenex_225 vanished before elimination [2021-02-19 18:35:24,726 INFO L518 ElimStorePlain]: Eliminatee v_prenex_247 vanished before elimination [2021-02-19 18:35:24,726 INFO L518 ElimStorePlain]: Eliminatee v_prenex_226 vanished before elimination [2021-02-19 18:35:24,726 INFO L518 ElimStorePlain]: Eliminatee v_prenex_248 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_227 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_249 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_239 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_217 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_218 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_219 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_250 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_251 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_230 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_231 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_232 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_233 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_234 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_235 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_236 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_214 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_237 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_215 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_238 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_216 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_228 vanished before elimination [2021-02-19 18:35:24,727 INFO L518 ElimStorePlain]: Eliminatee v_prenex_229 vanished before elimination [2021-02-19 18:35:24,728 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 18:35:24,728 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 18:35:24,729 INFO L550 ElimStorePlain]: Start of recursive call 1: 40 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:35:24,729 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 40 variables, input treesize:1841, output treesize:5 [2021-02-19 18:35:24,752 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:35:24,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:35:24,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-02-19 18:35:24,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765445423] [2021-02-19 18:35:24,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-02-19 18:35:24,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:35:24,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-02-19 18:35:24,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2021-02-19 18:35:24,754 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) [2021-02-19 18:35:24,982 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2021-02-19 18:35:25,168 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2021-02-19 18:35:25,949 WARN L202 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-02-19 18:35:26,300 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2021-02-19 18:35:26,916 WARN L202 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2021-02-19 18:35:27,525 WARN L202 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2021-02-19 18:35:28,055 WARN L202 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2021-02-19 18:35:28,707 WARN L202 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-02-19 18:35:29,034 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-19 18:35:29,401 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2021-02-19 18:35:30,002 WARN L202 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-02-19 18:35:31,081 WARN L202 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-02-19 18:35:31,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:35:31,121 INFO L93 Difference]: Finished difference Result 7905 states and 27674 transitions. [2021-02-19 18:35:31,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-19 18:35:31,122 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 [2021-02-19 18:35:31,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:35:31,136 INFO L225 Difference]: With dead ends: 7905 [2021-02-19 18:35:31,136 INFO L226 Difference]: Without dead ends: 7774 [2021-02-19 18:35:31,137 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=304, Invalid=1418, Unknown=0, NotChecked=0, Total=1722 [2021-02-19 18:35:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7774 states. [2021-02-19 18:35:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7774 to 6202. [2021-02-19 18:35:31,241 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) [2021-02-19 18:35:31,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 22159 transitions. [2021-02-19 18:35:31,260 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 22159 transitions. Word has length 33 [2021-02-19 18:35:31,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:35:31,260 INFO L480 AbstractCegarLoop]: Abstraction has 6202 states and 22159 transitions. [2021-02-19 18:35:31,260 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) [2021-02-19 18:35:31,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 22159 transitions. [2021-02-19 18:35:31,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:35:31,269 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:35:31,269 INFO L506 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] [2021-02-19 18:35:31,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable965 [2021-02-19 18:35:31,470 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:35:31,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:35:31,470 INFO L82 PathProgramCache]: Analyzing trace with hash -874818997, now seen corresponding path program 22 times [2021-02-19 18:35:31,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:35:31,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578538644] [2021-02-19 18:35:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:35:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:35:31,957 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2021-02-19 18:35:32,178 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2021-02-19 18:35:32,521 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 44 [2021-02-19 18:35:32,748 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 34 [2021-02-19 18:35:32,876 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:35:32,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578538644] [2021-02-19 18:35:32,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131016286] [2021-02-19 18:35:32,876 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 [2021-02-19 18:35:32,898 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 18:35:32,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:35:32,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-02-19 18:35:32,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:35:33,062 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 [2021-02-19 18:35:33,064 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:33,087 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:33,089 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:35:33,089 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-02-19 18:35:33,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:33,856 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:33,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:33,872 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:33,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2021-02-19 18:35:33,887 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:33,899 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 48 treesize of output 36 [2021-02-19 18:35:33,903 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:33,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:33,920 INFO L550 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:33,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:33,936 INFO L550 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:33,951 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 48 treesize of output 36 [2021-02-19 18:35:33,955 INFO L550 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:33,970 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 50 treesize of output 36 [2021-02-19 18:35:33,974 INFO L550 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:33,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 18:35:33,993 INFO L550 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:34,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:34,012 INFO L550 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:34,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-02-19 18:35:34,076 INFO L550 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:34,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:34,095 INFO L550 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:34,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:34,115 INFO L550 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:34,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:34,139 INFO L550 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:34,158 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 50 treesize of output 36 [2021-02-19 18:35:34,166 INFO L550 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:34,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:34,183 INFO L550 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,120 WARN L202 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-02-19 18:35:35,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:35,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,143 INFO L550 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,165 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 52 treesize of output 34 [2021-02-19 18:35:35,169 INFO L550 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,195 INFO L550 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,217 INFO L550 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,239 INFO L550 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,263 INFO L550 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,288 INFO L550 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,312 INFO L550 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,335 INFO L550 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,358 INFO L550 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,377 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 42 treesize of output 30 [2021-02-19 18:35:35,381 INFO L550 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,401 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 46 treesize of output 30 [2021-02-19 18:35:35,405 INFO L550 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-02-19 18:35:35,429 INFO L550 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,451 INFO L550 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,474 INFO L550 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:35,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:35,491 INFO L550 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-02-19 18:35:36,687 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 178 DAG size of output: 175 [2021-02-19 18:35:36,688 INFO L628 ElimStorePlain]: treesize reduction 20, result has 96.1 percent of original size [2021-02-19 18:35:36,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:36,710 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:36,731 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,753 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 16 treesize of output 18 [2021-02-19 18:35:36,755 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,776 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 16 treesize of output 18 [2021-02-19 18:35:36,778 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:36,801 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:36,823 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 18:35:36,846 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:36,869 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:36,892 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:36,914 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 18:35:36,940 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:36,962 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:36,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:36,984 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:37,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 18:35:37,006 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:37,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-02-19 18:35:37,029 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:37,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:37,050 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:37,361 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-02-19 18:35:37,361 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:37,370 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-02-19 18:35:37,370 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 3 variables, input treesize:1137, output treesize:245 [2021-02-19 18:35:37,557 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 25 [2021-02-19 18:35:37,787 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2021-02-19 18:35:37,834 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 [2021-02-19 18:35:37,836 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:37,865 INFO L628 ElimStorePlain]: treesize reduction 108, result has 4.4 percent of original size [2021-02-19 18:35:37,865 INFO L518 ElimStorePlain]: Eliminatee v_prenex_252 vanished before elimination [2021-02-19 18:35:37,865 INFO L518 ElimStorePlain]: Eliminatee v_prenex_253 vanished before elimination [2021-02-19 18:35:37,865 INFO L518 ElimStorePlain]: Eliminatee v_prenex_254 vanished before elimination [2021-02-19 18:35:37,866 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:35:37,866 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:128, output treesize:5 [2021-02-19 18:35:37,884 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:35:37,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:35:37,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 18:35:37,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358443892] [2021-02-19 18:35:37,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 18:35:37,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:35:37,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 18:35:37,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2021-02-19 18:35:37,885 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) [2021-02-19 18:35:38,477 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2021-02-19 18:35:38,780 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-19 18:35:39,154 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-02-19 18:35:39,679 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 29 [2021-02-19 18:35:40,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:35:40,188 INFO L93 Difference]: Finished difference Result 8633 states and 30105 transitions. [2021-02-19 18:35:40,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 18:35:40,189 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 [2021-02-19 18:35:40,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:35:40,203 INFO L225 Difference]: With dead ends: 8633 [2021-02-19 18:35:40,204 INFO L226 Difference]: Without dead ends: 8590 [2021-02-19 18:35:40,204 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=188, Invalid=934, Unknown=0, NotChecked=0, Total=1122 [2021-02-19 18:35:40,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2021-02-19 18:35:40,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 6280. [2021-02-19 18:35:40,317 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) [2021-02-19 18:35:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 22407 transitions. [2021-02-19 18:35:40,331 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 22407 transitions. Word has length 33 [2021-02-19 18:35:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:35:40,331 INFO L480 AbstractCegarLoop]: Abstraction has 6280 states and 22407 transitions. [2021-02-19 18:35:40,331 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) [2021-02-19 18:35:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 22407 transitions. [2021-02-19 18:35:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:35:40,339 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:35:40,339 INFO L506 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] [2021-02-19 18:35:40,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1136 [2021-02-19 18:35:40,540 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:35:40,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:35:40,541 INFO L82 PathProgramCache]: Analyzing trace with hash 321493445, now seen corresponding path program 23 times [2021-02-19 18:35:40,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:35:40,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708625524] [2021-02-19 18:35:40,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:35:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:35:41,064 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2021-02-19 18:35:41,283 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 23 [2021-02-19 18:35:41,517 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 30 [2021-02-19 18:35:41,719 WARN L202 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 27 [2021-02-19 18:35:41,951 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:35:41,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708625524] [2021-02-19 18:35:41,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101995830] [2021-02-19 18:35:41,951 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 [2021-02-19 18:35:41,976 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-02-19 18:35:41,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:35:41,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 23 conjunts are in the unsatisfiable core [2021-02-19 18:35:41,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:35:42,157 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 [2021-02-19 18:35:42,159 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:42,185 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:42,186 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:35:42,186 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-02-19 18:35:42,530 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-19 18:35:42,748 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-02-19 18:35:43,055 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2021-02-19 18:35:44,152 INFO L446 ElimStorePlain]: Different costs {3=[v_C_32], 10=[A, B]} [2021-02-19 18:35:44,164 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,167 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,176 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,198 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 18:35:44,219 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,237 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 18:35:44,257 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,284 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,298 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,307 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,327 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,337 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,340 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,355 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,367 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,385 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 18:35:44,408 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 18:35:44,434 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,447 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,462 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,476 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,492 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,507 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,523 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 18:35:44,545 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,567 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,593 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,617 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,640 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,656 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,666 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,692 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,715 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,740 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,757 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,774 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,801 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,817 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,827 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,838 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,850 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,873 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,895 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,909 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:44,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2021-02-19 18:35:44,918 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:44,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:44,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:44,938 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:46,814 WARN L202 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2021-02-19 18:35:46,814 INFO L628 ElimStorePlain]: treesize reduction 700, result has 74.9 percent of original size [2021-02-19 18:35:46,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:46,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:46,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,831 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,837 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,863 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:46,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 50 [2021-02-19 18:35:46,873 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:46,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:46,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:46,889 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,892 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,898 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,923 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:46,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 57 [2021-02-19 18:35:46,932 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:46,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:46,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:46,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,949 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,956 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,958 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:46,984 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:46,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 59 [2021-02-19 18:35:46,991 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,006 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,010 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,017 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,019 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,045 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:47,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 50 [2021-02-19 18:35:47,052 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,083 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,114 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 18:35:47,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 49 [2021-02-19 18:35:47,119 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,134 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,143 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,146 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,171 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:47,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 50 [2021-02-19 18:35:47,178 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,193 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,202 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,205 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,239 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:35:47,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 53 [2021-02-19 18:35:47,244 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,286 INFO L354 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2021-02-19 18:35:47,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 35 [2021-02-19 18:35:47,289 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,305 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,311 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,348 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:35:47,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 53 [2021-02-19 18:35:47,353 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,379 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,382 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,407 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:47,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 50 [2021-02-19 18:35:47,415 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,430 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,433 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,439 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,442 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,484 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:35:47,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 53 [2021-02-19 18:35:47,489 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,504 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,507 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,514 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,543 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 18:35:47,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 47 [2021-02-19 18:35:47,548 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,565 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,568 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,624 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:35:47,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 53 [2021-02-19 18:35:47,628 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,647 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,656 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,677 INFO L354 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2021-02-19 18:35:47,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 35 [2021-02-19 18:35:47,679 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,695 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,719 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 18:35:47,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 32 [2021-02-19 18:35:47,721 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,740 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,760 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 18:35:47,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 63 treesize of output 41 [2021-02-19 18:35:47,762 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,780 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,790 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,817 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 18:35:47,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 47 [2021-02-19 18:35:47,822 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,839 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,852 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,884 INFO L354 Elim1Store]: treesize reduction 8, result has 57.9 percent of original size [2021-02-19 18:35:47,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 49 [2021-02-19 18:35:47,887 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,903 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,913 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,949 INFO L354 Elim1Store]: treesize reduction 8, result has 57.9 percent of original size [2021-02-19 18:35:47,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 49 [2021-02-19 18:35:47,951 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:47,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:47,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,969 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:47,980 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,007 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 18:35:48,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 47 [2021-02-19 18:35:48,012 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:48,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:48,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:48,027 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,036 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,040 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,065 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 18:35:48,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 40 [2021-02-19 18:35:48,070 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:48,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:48,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:48,084 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,092 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,095 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,128 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:35:48,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 53 [2021-02-19 18:35:48,133 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:48,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:48,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:48,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,161 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,167 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,196 INFO L354 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2021-02-19 18:35:48,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 47 [2021-02-19 18:35:48,201 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:48,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:48,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:48,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:48,224 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 18:35:48,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 41 [2021-02-19 18:35:48,227 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:49,417 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2021-02-19 18:35:49,418 INFO L628 ElimStorePlain]: treesize reduction 767, result has 63.6 percent of original size [2021-02-19 18:35:49,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,434 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,437 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 31 [2021-02-19 18:35:49,442 INFO L550 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:49,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,452 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,455 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,461 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,487 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:49,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 48 [2021-02-19 18:35:49,500 INFO L550 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:49,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,513 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,524 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,547 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:49,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 96 treesize of output 84 [2021-02-19 18:35:49,575 INFO L550 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 4 xjuncts. [2021-02-19 18:35:49,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,598 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,600 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,610 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,642 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:35:49,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 106 treesize of output 84 [2021-02-19 18:35:49,654 INFO L550 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:49,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,668 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,669 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,697 INFO L354 Elim1Store]: treesize reduction 16, result has 15.8 percent of original size [2021-02-19 18:35:49,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 29 [2021-02-19 18:35:49,699 INFO L550 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:49,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,713 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,714 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,734 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 18:35:49,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 100 treesize of output 1 [2021-02-19 18:35:49,736 INFO L550 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:49,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,757 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,758 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,768 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 18:35:49,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 1 [2021-02-19 18:35:49,769 INFO L550 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:49,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,782 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,782 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,790 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,791 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,798 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 18:35:49,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 46 [2021-02-19 18:35:49,806 INFO L550 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 2 xjuncts. [2021-02-19 18:35:49,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,817 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,819 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,825 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,828 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,844 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 18:35:49,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 102 treesize of output 1 [2021-02-19 18:35:49,847 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:49,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,878 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,893 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 18:35:49,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 1 [2021-02-19 18:35:49,895 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:49,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,915 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,928 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,938 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 18:35:49,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 39 [2021-02-19 18:35:49,940 INFO L550 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:49,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:49,952 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,954 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:49,985 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:49,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 44 [2021-02-19 18:35:49,998 INFO L550 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 3 xjuncts. [2021-02-19 18:35:50,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,009 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,010 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-02-19 18:35:50,024 INFO L550 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:50,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,035 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,046 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,054 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 18:35:50,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 39 [2021-02-19 18:35:50,056 INFO L550 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:50,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,076 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,101 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:50,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 44 [2021-02-19 18:35:50,117 INFO L550 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 3 xjuncts. [2021-02-19 18:35:50,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,128 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,150 INFO L354 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2021-02-19 18:35:50,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 30 [2021-02-19 18:35:50,153 INFO L550 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:50,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,165 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:50,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:50,174 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 18:35:50,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 1 [2021-02-19 18:35:50,176 INFO L550 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:50,366 WARN L202 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 34 [2021-02-19 18:35:50,367 INFO L628 ElimStorePlain]: treesize reduction 611, result has 18.3 percent of original size [2021-02-19 18:35:50,373 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2021-02-19 18:35:50,373 INFO L247 ElimStorePlain]: Needed 74 recursive calls to eliminate 4 variables, input treesize:2785, output treesize:137 [2021-02-19 18:35:51,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:51,129 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:51,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:51,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2021-02-19 18:35:51,135 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:51,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:51,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:51,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2021-02-19 18:35:51,145 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:51,374 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-02-19 18:35:51,375 INFO L628 ElimStorePlain]: treesize reduction 95, result has 61.1 percent of original size [2021-02-19 18:35:51,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:51,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:51,386 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:51,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2021-02-19 18:35:51,389 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:51,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:51,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:51,480 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 24 treesize of output 14 [2021-02-19 18:35:51,482 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:51,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:51,489 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:35:51,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-02-19 18:35:51,493 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:51,606 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-02-19 18:35:51,607 INFO L628 ElimStorePlain]: treesize reduction 14, result has 85.9 percent of original size [2021-02-19 18:35:51,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:51,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2021-02-19 18:35:51,617 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:51,664 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:51,671 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:35:51,671 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:301, output treesize:5 [2021-02-19 18:35:51,694 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:35:51,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:35:51,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 24 [2021-02-19 18:35:51,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686442227] [2021-02-19 18:35:51,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 18:35:51,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:35:51,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 18:35:51,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-02-19 18:35:51,696 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) [2021-02-19 18:35:52,351 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2021-02-19 18:35:52,873 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-02-19 18:35:53,331 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2021-02-19 18:35:54,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:35:54,072 INFO L93 Difference]: Finished difference Result 8577 states and 29914 transitions. [2021-02-19 18:35:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 18:35:54,074 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 [2021-02-19 18:35:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:35:54,088 INFO L225 Difference]: With dead ends: 8577 [2021-02-19 18:35:54,089 INFO L226 Difference]: Without dead ends: 8400 [2021-02-19 18:35:54,089 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2021-02-19 18:35:54,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8400 states. [2021-02-19 18:35:54,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8400 to 6348. [2021-02-19 18:35:54,161 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) [2021-02-19 18:35:54,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 22608 transitions. [2021-02-19 18:35:54,175 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 22608 transitions. Word has length 33 [2021-02-19 18:35:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:35:54,175 INFO L480 AbstractCegarLoop]: Abstraction has 6348 states and 22608 transitions. [2021-02-19 18:35:54,175 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) [2021-02-19 18:35:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 22608 transitions. [2021-02-19 18:35:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:35:54,184 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:35:54,184 INFO L506 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] [2021-02-19 18:35:54,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1184,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:35:54,384 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:35:54,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:35:54,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1275794571, now seen corresponding path program 24 times [2021-02-19 18:35:54,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:35:54,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104325350] [2021-02-19 18:35:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:35:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:35:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-19 18:35:54,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104325350] [2021-02-19 18:35:54,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81055647] [2021-02-19 18:35:54,434 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 [2021-02-19 18:35:54,462 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-02-19 18:35:54,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:35:54,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 18:35:54,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:35:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-19 18:35:54,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:35:54,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-02-19 18:35:54,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573417018] [2021-02-19 18:35:54,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 18:35:54,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:35:54,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 18:35:54,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-02-19 18:35:54,626 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) [2021-02-19 18:35:54,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:35:54,853 INFO L93 Difference]: Finished difference Result 9208 states and 32067 transitions. [2021-02-19 18:35:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 18:35:54,855 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 [2021-02-19 18:35:54,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:35:54,878 INFO L225 Difference]: With dead ends: 9208 [2021-02-19 18:35:54,878 INFO L226 Difference]: Without dead ends: 9114 [2021-02-19 18:35:54,880 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-02-19 18:35:54,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9114 states. [2021-02-19 18:35:54,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9114 to 6624. [2021-02-19 18:35:55,007 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) [2021-02-19 18:35:55,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 23486 transitions. [2021-02-19 18:35:55,024 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 23486 transitions. Word has length 33 [2021-02-19 18:35:55,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:35:55,024 INFO L480 AbstractCegarLoop]: Abstraction has 6624 states and 23486 transitions. [2021-02-19 18:35:55,025 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) [2021-02-19 18:35:55,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 23486 transitions. [2021-02-19 18:35:55,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:35:55,032 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:35:55,032 INFO L506 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] [2021-02-19 18:35:55,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1358 [2021-02-19 18:35:55,233 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:35:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:35:55,233 INFO L82 PathProgramCache]: Analyzing trace with hash 354072345, now seen corresponding path program 25 times [2021-02-19 18:35:55,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:35:55,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305409069] [2021-02-19 18:35:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:35:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:35:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-19 18:35:55,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305409069] [2021-02-19 18:35:55,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926522407] [2021-02-19 18:35:55,265 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 18:35:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:35:55,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2021-02-19 18:35:55,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:35:55,424 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-19 18:35:55,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:35:55,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-02-19 18:35:55,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066775586] [2021-02-19 18:35:55,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 18:35:55,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:35:55,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 18:35:55,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:35:55,425 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) [2021-02-19 18:35:55,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:35:55,495 INFO L93 Difference]: Finished difference Result 6820 states and 24081 transitions. [2021-02-19 18:35:55,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:35:55,497 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 [2021-02-19 18:35:55,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:35:55,509 INFO L225 Difference]: With dead ends: 6820 [2021-02-19 18:35:55,510 INFO L226 Difference]: Without dead ends: 6814 [2021-02-19 18:35:55,510 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:35:55,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6814 states. [2021-02-19 18:35:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6814 to 6552. [2021-02-19 18:35:55,587 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) [2021-02-19 18:35:55,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 23263 transitions. [2021-02-19 18:35:55,606 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 23263 transitions. Word has length 33 [2021-02-19 18:35:55,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:35:55,606 INFO L480 AbstractCegarLoop]: Abstraction has 6552 states and 23263 transitions. [2021-02-19 18:35:55,606 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) [2021-02-19 18:35:55,606 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 23263 transitions. [2021-02-19 18:35:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:35:55,616 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:35:55,616 INFO L506 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] [2021-02-19 18:35:55,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1359,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:35:55,816 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:35:55,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:35:55,817 INFO L82 PathProgramCache]: Analyzing trace with hash -424444597, now seen corresponding path program 26 times [2021-02-19 18:35:55,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:35:55,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160914716] [2021-02-19 18:35:55,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:35:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:35:56,503 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 47 [2021-02-19 18:35:56,810 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 51 [2021-02-19 18:35:57,115 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 47 [2021-02-19 18:35:57,321 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:35:57,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160914716] [2021-02-19 18:35:57,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839468680] [2021-02-19 18:35:57,322 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 [2021-02-19 18:35:57,345 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 18:35:57,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:35:57,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 24 conjunts are in the unsatisfiable core [2021-02-19 18:35:57,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:35:57,532 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 [2021-02-19 18:35:57,534 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:57,555 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:57,556 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:35:57,556 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-02-19 18:35:57,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:57,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:57,795 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:57,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:57,813 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 30 treesize of output 32 [2021-02-19 18:35:57,816 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:57,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:57,835 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 30 treesize of output 32 [2021-02-19 18:35:57,838 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:57,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:35:57,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:35:57,856 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:58,054 WARN L202 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 18:35:58,055 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:58,058 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:35:58,058 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:301, output treesize:297 [2021-02-19 18:35:58,288 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 18:35:58,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2021-02-19 18:35:58,882 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:35:59,546 WARN L202 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2021-02-19 18:35:59,547 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:35:59,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:35:59,567 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:00,960 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 347 DAG size of output: 335 [2021-02-19 18:36:00,961 INFO L628 ElimStorePlain]: treesize reduction 56, result has 95.1 percent of original size [2021-02-19 18:36:00,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 35 [2021-02-19 18:36:00,991 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:01,797 WARN L202 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2021-02-19 18:36:01,798 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:01,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:36:01,820 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:02,421 WARN L202 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 150 [2021-02-19 18:36:02,422 INFO L628 ElimStorePlain]: treesize reduction 550, result has 47.2 percent of original size [2021-02-19 18:36:02,422 INFO L518 ElimStorePlain]: Eliminatee v_prenex_284 vanished before elimination [2021-02-19 18:36:02,422 INFO L518 ElimStorePlain]: Eliminatee v_prenex_285 vanished before elimination [2021-02-19 18:36:02,422 INFO L518 ElimStorePlain]: Eliminatee v_prenex_264 vanished before elimination [2021-02-19 18:36:02,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:36:02,435 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:02,695 WARN L202 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2021-02-19 18:36:02,696 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:02,696 INFO L518 ElimStorePlain]: Eliminatee v_prenex_265 vanished before elimination [2021-02-19 18:36:02,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:36:02,708 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:03,219 WARN L202 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 133 [2021-02-19 18:36:03,220 INFO L628 ElimStorePlain]: treesize reduction 5, result has 98.9 percent of original size [2021-02-19 18:36:03,220 INFO L518 ElimStorePlain]: Eliminatee v_prenex_266 vanished before elimination [2021-02-19 18:36:03,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:36:03,240 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:03,512 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-02-19 18:36:03,513 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:03,513 INFO L518 ElimStorePlain]: Eliminatee v_prenex_267 vanished before elimination [2021-02-19 18:36:03,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:36:03,524 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:03,840 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 86 [2021-02-19 18:36:03,841 INFO L628 ElimStorePlain]: treesize reduction 126, result has 68.8 percent of original size [2021-02-19 18:36:03,841 INFO L518 ElimStorePlain]: Eliminatee v_prenex_268 vanished before elimination [2021-02-19 18:36:03,841 INFO L518 ElimStorePlain]: Eliminatee v_prenex_269 vanished before elimination [2021-02-19 18:36:03,841 INFO L518 ElimStorePlain]: Eliminatee v_prenex_290 vanished before elimination [2021-02-19 18:36:03,841 INFO L518 ElimStorePlain]: Eliminatee v_prenex_291 vanished before elimination [2021-02-19 18:36:03,841 INFO L518 ElimStorePlain]: Eliminatee v_prenex_270 vanished before elimination [2021-02-19 18:36:03,841 INFO L518 ElimStorePlain]: Eliminatee v_prenex_292 vanished before elimination [2021-02-19 18:36:03,841 INFO L518 ElimStorePlain]: Eliminatee v_prenex_271 vanished before elimination [2021-02-19 18:36:03,841 INFO L518 ElimStorePlain]: Eliminatee v_prenex_293 vanished before elimination [2021-02-19 18:36:03,841 INFO L518 ElimStorePlain]: Eliminatee v_prenex_272 vanished before elimination [2021-02-19 18:36:03,841 INFO L518 ElimStorePlain]: Eliminatee v_prenex_273 vanished before elimination [2021-02-19 18:36:03,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:36:03,851 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:03,976 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-02-19 18:36:03,977 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:03,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:36:03,986 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:04,128 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2021-02-19 18:36:04,128 INFO L628 ElimStorePlain]: treesize reduction 126, result has 50.0 percent of original size [2021-02-19 18:36:04,133 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 51 treesize of output 35 [2021-02-19 18:36:04,136 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:04,186 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:04,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:36:04,193 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:04,257 INFO L628 ElimStorePlain]: treesize reduction 35, result has 59.3 percent of original size [2021-02-19 18:36:04,258 INFO L518 ElimStorePlain]: Eliminatee v_prenex_278 vanished before elimination [2021-02-19 18:36:04,258 INFO L518 ElimStorePlain]: Eliminatee v_prenex_279 vanished before elimination [2021-02-19 18:36:04,258 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 18:36:04,258 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 18:36:04,259 INFO L550 ElimStorePlain]: Start of recursive call 1: 32 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-02-19 18:36:04,259 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 32 variables, input treesize:1137, output treesize:47 [2021-02-19 18:36:04,533 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 [2021-02-19 18:36:04,535 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:04,552 INFO L628 ElimStorePlain]: treesize reduction 41, result has 10.9 percent of original size [2021-02-19 18:36:04,552 INFO L518 ElimStorePlain]: Eliminatee v_prenex_294 vanished before elimination [2021-02-19 18:36:04,553 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:36:04,553 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:61, output treesize:5 [2021-02-19 18:36:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:36:04,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:36:04,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 18:36:04,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037170764] [2021-02-19 18:36:04,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 18:36:04,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:36:04,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 18:36:04,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2021-02-19 18:36:04,573 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) [2021-02-19 18:36:05,145 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2021-02-19 18:36:05,393 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2021-02-19 18:36:05,882 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-02-19 18:36:06,548 WARN L202 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2021-02-19 18:36:06,908 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2021-02-19 18:36:07,556 WARN L202 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-02-19 18:36:07,939 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2021-02-19 18:36:08,468 WARN L202 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2021-02-19 18:36:08,639 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2021-02-19 18:36:09,069 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-02-19 18:36:09,975 WARN L202 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2021-02-19 18:36:10,276 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2021-02-19 18:36:10,944 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-02-19 18:36:11,117 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2021-02-19 18:36:11,587 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2021-02-19 18:36:11,843 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2021-02-19 18:36:12,561 WARN L202 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-02-19 18:36:12,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:36:12,760 INFO L93 Difference]: Finished difference Result 10683 states and 36755 transitions. [2021-02-19 18:36:12,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-02-19 18:36:12,762 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 [2021-02-19 18:36:12,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:36:12,784 INFO L225 Difference]: With dead ends: 10683 [2021-02-19 18:36:12,784 INFO L226 Difference]: Without dead ends: 10563 [2021-02-19 18:36:12,785 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=363, Invalid=1989, Unknown=0, NotChecked=0, Total=2352 [2021-02-19 18:36:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2021-02-19 18:36:12,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 6710. [2021-02-19 18:36:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6710 states, 6709 states have (on average 3.552839469369504) internal successors, (23836), 6709 states have internal predecessors, (23836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 18:36:12,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6710 states to 6710 states and 23836 transitions. [2021-02-19 18:36:12,900 INFO L78 Accepts]: Start accepts. Automaton has 6710 states and 23836 transitions. Word has length 33 [2021-02-19 18:36:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:36:12,900 INFO L480 AbstractCegarLoop]: Abstraction has 6710 states and 23836 transitions. [2021-02-19 18:36:12,900 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) [2021-02-19 18:36:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 6710 states and 23836 transitions. [2021-02-19 18:36:12,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:36:12,910 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:36:12,910 INFO L506 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] [2021-02-19 18:36:13,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1360 [2021-02-19 18:36:13,126 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:36:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:36:13,126 INFO L82 PathProgramCache]: Analyzing trace with hash 246689023, now seen corresponding path program 27 times [2021-02-19 18:36:13,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:36:13,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487613434] [2021-02-19 18:36:13,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:36:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:36:13,714 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2021-02-19 18:36:14,015 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-02-19 18:36:14,397 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 50 [2021-02-19 18:36:14,620 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 31 [2021-02-19 18:36:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:36:14,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487613434] [2021-02-19 18:36:14,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987008123] [2021-02-19 18:36:14,739 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 [2021-02-19 18:36:14,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-02-19 18:36:14,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:36:14,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 29 conjunts are in the unsatisfiable core [2021-02-19 18:36:14,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:36:14,955 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 [2021-02-19 18:36:14,957 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:14,979 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:14,980 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:36:14,981 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:42 [2021-02-19 18:36:15,189 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-02-19 18:36:15,190 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 [2021-02-19 18:36:15,192 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:15,225 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-02-19 18:36:15,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-02-19 18:36:15,227 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:15,260 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-02-19 18:36:15,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-02-19 18:36:15,263 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:15,291 INFO L354 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2021-02-19 18:36:15,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-02-19 18:36:15,294 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:15,475 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-19 18:36:15,475 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:15,479 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. [2021-02-19 18:36:15,479 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:285, output treesize:281 [2021-02-19 18:36:15,732 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-02-19 18:36:16,054 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-02-19 18:36:16,932 WARN L202 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2021-02-19 18:36:18,730 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:36:18,730 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 [2021-02-19 18:36:18,741 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-02-19 18:36:20,508 WARN L202 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 531 [2021-02-19 18:36:20,509 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:20,608 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:36:20,608 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 [2021-02-19 18:36:20,628 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-02-19 18:36:24,469 WARN L202 SmtUtils]: Spent 3.84 s on a formula simplification. DAG size of input: 542 DAG size of output: 538 [2021-02-19 18:36:24,472 INFO L628 ElimStorePlain]: treesize reduction 75, result has 96.3 percent of original size [2021-02-19 18:36:24,575 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:24,575 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 [2021-02-19 18:36:24,625 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-02-19 18:36:28,476 WARN L202 SmtUtils]: Spent 3.85 s on a formula simplification. DAG size of input: 537 DAG size of output: 524 [2021-02-19 18:36:28,478 INFO L628 ElimStorePlain]: treesize reduction 112, result has 94.5 percent of original size [2021-02-19 18:36:28,573 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:28,573 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 [2021-02-19 18:36:28,627 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 3 xjuncts. [2021-02-19 18:36:32,893 WARN L202 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 522 DAG size of output: 514 [2021-02-19 18:36:32,895 INFO L628 ElimStorePlain]: treesize reduction 55, result has 97.3 percent of original size [2021-02-19 18:36:33,045 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:36:33,045 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 [2021-02-19 18:36:33,071 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:33,201 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:36:33,201 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 [2021-02-19 18:36:33,211 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:35,513 WARN L202 SmtUtils]: Spent 2.30 s on a formula simplification that was a NOOP. DAG size: 517 [2021-02-19 18:36:35,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:35,677 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:36:35,677 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 [2021-02-19 18:36:35,689 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:35,834 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:36:35,835 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:36:35,836 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 [2021-02-19 18:36:35,847 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:38,383 WARN L202 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 518 [2021-02-19 18:36:38,384 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:38,508 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:36:38,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 62 [2021-02-19 18:36:38,520 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:40,913 WARN L202 SmtUtils]: Spent 2.39 s on a formula simplification that was a NOOP. DAG size: 532 [2021-02-19 18:36:40,914 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:41,062 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:41,063 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 [2021-02-19 18:36:41,142 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 4 xjuncts. [2021-02-19 18:36:41,218 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-02-19 18:36:41,219 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 [2021-02-19 18:36:41,221 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:46,275 WARN L202 SmtUtils]: Spent 5.05 s on a formula simplification. DAG size of input: 532 DAG size of output: 514 [2021-02-19 18:36:46,277 INFO L628 ElimStorePlain]: treesize reduction 230, result has 89.4 percent of original size [2021-02-19 18:36:46,423 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:46,423 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 69 [2021-02-19 18:36:46,541 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 6 xjuncts. [2021-02-19 18:36:46,611 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-02-19 18:36:46,611 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 1 [2021-02-19 18:36:46,614 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 18:36:54,337 WARN L202 SmtUtils]: Spent 7.72 s on a formula simplification. DAG size of input: 524 DAG size of output: 504 [2021-02-19 18:36:54,339 INFO L628 ElimStorePlain]: treesize reduction 239, result has 88.6 percent of original size [2021-02-19 18:36:54,496 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:36:54,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 125 [2021-02-19 18:36:54,631 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 3 xjuncts. [2021-02-19 18:37:08,451 WARN L202 SmtUtils]: Spent 13.82 s on a formula simplification. DAG size of input: 526 DAG size of output: 480 [2021-02-19 18:37:08,453 INFO L628 ElimStorePlain]: treesize reduction 391, result has 81.9 percent of original size [2021-02-19 18:37:08,599 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:37:08,600 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:37:08,601 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 [2021-02-19 18:37:08,619 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2021-02-19 18:37:14,320 WARN L202 SmtUtils]: Spent 5.70 s on a formula simplification. DAG size of input: 489 DAG size of output: 485 [2021-02-19 18:37:14,322 INFO L628 ElimStorePlain]: treesize reduction 75, result has 96.0 percent of original size [2021-02-19 18:37:14,457 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:37:14,457 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 [2021-02-19 18:37:14,559 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 3 xjuncts. [2021-02-19 18:37:23,661 WARN L202 SmtUtils]: Spent 9.10 s on a formula simplification. DAG size of input: 478 DAG size of output: 469 [2021-02-19 18:37:23,663 INFO L628 ElimStorePlain]: treesize reduction 80, result has 95.7 percent of original size [2021-02-19 18:37:23,895 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:37:23,896 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:37:23,896 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 49 treesize of output 51 [2021-02-19 18:37:23,911 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 18:37:24,094 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:37:24,095 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:37:24,095 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 [2021-02-19 18:37:24,109 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 18:37:27,075 WARN L202 SmtUtils]: Spent 2.96 s on a formula simplification that was a NOOP. DAG size: 474 [2021-02-19 18:37:27,076 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:37:27,268 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:37:27,270 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:37:27,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 62 [2021-02-19 18:37:27,284 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 18:37:27,462 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:37:27,463 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:37:27,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 62 [2021-02-19 18:37:27,477 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 18:37:30,495 WARN L202 SmtUtils]: Spent 3.02 s on a formula simplification that was a NOOP. DAG size: 484 [2021-02-19 18:37:30,496 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:37:30,651 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:37:30,652 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:37:30,652 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 [2021-02-19 18:37:30,664 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 18:37:33,950 WARN L202 SmtUtils]: Spent 3.29 s on a formula simplification that was a NOOP. DAG size: 488 [2021-02-19 18:37:33,952 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:37:34,137 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:37:34,138 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:37:34,138 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 [2021-02-19 18:37:34,162 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2021-02-19 18:37:40,870 WARN L202 SmtUtils]: Spent 6.71 s on a formula simplification. DAG size of input: 499 DAG size of output: 495 [2021-02-19 18:37:40,872 INFO L628 ElimStorePlain]: treesize reduction 75, result has 96.3 percent of original size [2021-02-19 18:37:41,066 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:37:41,067 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:37:41,067 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 118 treesize of output 112 [2021-02-19 18:37:41,176 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 4 xjuncts. [2021-02-19 18:37:41,258 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-02-19 18:37:41,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 1 [2021-02-19 18:37:41,262 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 18:37:51,198 WARN L202 SmtUtils]: Spent 9.93 s on a formula simplification. DAG size of input: 513 DAG size of output: 473 [2021-02-19 18:37:51,200 INFO L628 ElimStorePlain]: treesize reduction 325, result has 84.5 percent of original size [2021-02-19 18:37:51,362 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:37:51,363 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:37:51,364 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 [2021-02-19 18:37:51,479 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 4 xjuncts. [2021-02-19 18:37:58,771 WARN L202 SmtUtils]: Spent 7.29 s on a formula simplification. DAG size of input: 470 DAG size of output: 460 [2021-02-19 18:37:58,773 INFO L628 ElimStorePlain]: treesize reduction 105, result has 94.4 percent of original size [2021-02-19 18:37:58,981 WARN L202 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:37:58,982 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:37:58,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 59 [2021-02-19 18:37:58,999 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-02-19 18:38:02,599 WARN L202 SmtUtils]: Spent 3.60 s on a formula simplification that was a NOOP. DAG size: 464 [2021-02-19 18:38:02,601 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:38:02,803 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:38:02,804 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:38:02,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 52 [2021-02-19 18:38:02,823 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-02-19 18:38:06,425 WARN L202 SmtUtils]: Spent 3.60 s on a formula simplification that was a NOOP. DAG size: 469 [2021-02-19 18:38:06,427 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:38:06,588 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:38:06,589 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:38:06,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 84 [2021-02-19 18:38:06,682 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 3 xjuncts. [2021-02-19 18:38:14,534 WARN L202 SmtUtils]: Spent 7.85 s on a formula simplification. DAG size of input: 465 DAG size of output: 454 [2021-02-19 18:38:14,537 INFO L628 ElimStorePlain]: treesize reduction 83, result has 95.5 percent of original size [2021-02-19 18:38:14,879 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:38:14,881 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:38:14,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 52 [2021-02-19 18:38:14,900 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 18:38:15,110 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:38:15,111 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:38:15,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 52 [2021-02-19 18:38:15,129 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-02-19 18:38:18,933 WARN L202 SmtUtils]: Spent 3.80 s on a formula simplification that was a NOOP. DAG size: 453 [2021-02-19 18:38:18,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:38:19,151 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:38:19,153 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:38:19,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 71 [2021-02-19 18:38:19,268 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 3 xjuncts. [2021-02-19 18:38:19,359 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-02-19 18:38:19,359 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 1 [2021-02-19 18:38:19,364 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-02-19 18:38:27,457 WARN L202 SmtUtils]: Spent 8.09 s on a formula simplification. DAG size of input: 470 DAG size of output: 441 [2021-02-19 18:38:27,459 INFO L628 ElimStorePlain]: treesize reduction 282, result has 85.6 percent of original size [2021-02-19 18:38:27,665 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:38:27,667 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:38:27,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 55 [2021-02-19 18:38:27,690 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2021-02-19 18:38:31,711 WARN L202 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 448 [2021-02-19 18:38:31,713 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:38:31,911 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:38:31,913 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:38:31,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 127 [2021-02-19 18:38:32,093 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 3 xjuncts. [2021-02-19 18:38:39,723 WARN L202 SmtUtils]: Spent 7.63 s on a formula simplification. DAG size of input: 453 DAG size of output: 431 [2021-02-19 18:38:39,725 INFO L628 ElimStorePlain]: treesize reduction 167, result has 90.9 percent of original size [2021-02-19 18:38:40,000 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:38:40,002 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:38:40,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 55 [2021-02-19 18:38:40,021 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-02-19 18:38:40,357 WARN L202 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:38:40,359 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:38:40,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 55 [2021-02-19 18:38:40,377 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-02-19 18:38:44,656 WARN L202 SmtUtils]: Spent 4.28 s on a formula simplification that was a NOOP. DAG size: 439 [2021-02-19 18:38:44,657 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:38:44,887 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:38:44,889 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:38:44,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 101 [2021-02-19 18:38:45,002 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2021-02-19 18:38:45,191 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 8 [2021-02-19 18:38:45,193 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-02-19 18:38:45,193 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 101 treesize of output 84 [2021-02-19 18:38:45,232 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-02-19 18:38:53,419 WARN L202 SmtUtils]: Spent 8.19 s on a formula simplification. DAG size of input: 442 DAG size of output: 418 [2021-02-19 18:38:53,422 INFO L628 ElimStorePlain]: treesize reduction 209, result has 88.3 percent of original size [2021-02-19 18:38:53,592 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:38:53,594 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:38:53,594 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 [2021-02-19 18:38:53,753 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 4 xjuncts. [2021-02-19 18:39:01,881 WARN L202 SmtUtils]: Spent 8.13 s on a formula simplification. DAG size of input: 422 DAG size of output: 403 [2021-02-19 18:39:01,884 INFO L628 ElimStorePlain]: treesize reduction 222, result has 87.4 percent of original size [2021-02-19 18:39:02,165 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:39:02,166 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:39:02,167 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 [2021-02-19 18:39:02,380 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 3 xjuncts. [2021-02-19 18:39:02,480 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-02-19 18:39:02,480 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 [2021-02-19 18:39:02,485 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-02-19 18:39:10,348 WARN L202 SmtUtils]: Spent 7.86 s on a formula simplification. DAG size of input: 406 DAG size of output: 386 [2021-02-19 18:39:10,350 INFO L628 ElimStorePlain]: treesize reduction 272, result has 83.9 percent of original size [2021-02-19 18:39:10,541 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:39:10,542 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:39:10,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 52 [2021-02-19 18:39:10,559 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-02-19 18:39:14,138 WARN L202 SmtUtils]: Spent 3.58 s on a formula simplification that was a NOOP. DAG size: 386 [2021-02-19 18:39:14,140 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:39:14,506 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:39:14,507 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:39:14,508 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 [2021-02-19 18:39:14,524 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-02-19 18:39:18,073 WARN L202 SmtUtils]: Spent 3.55 s on a formula simplification that was a NOOP. DAG size: 390 [2021-02-19 18:39:18,074 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:39:18,226 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:39:18,228 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:39:18,228 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 [2021-02-19 18:39:18,296 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 2 xjuncts. [2021-02-19 18:39:29,971 WARN L202 SmtUtils]: Spent 11.67 s on a formula simplification. DAG size of input: 385 DAG size of output: 376 [2021-02-19 18:39:29,973 INFO L628 ElimStorePlain]: treesize reduction 69, result has 95.3 percent of original size [2021-02-19 18:39:30,150 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:39:30,151 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:39:30,152 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 98 treesize of output 96 [2021-02-19 18:39:30,235 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 4 xjuncts. [2021-02-19 18:39:38,065 WARN L202 SmtUtils]: Spent 7.83 s on a formula simplification. DAG size of input: 376 DAG size of output: 363 [2021-02-19 18:39:38,067 INFO L628 ElimStorePlain]: treesize reduction 120, result has 92.0 percent of original size [2021-02-19 18:39:38,336 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:39:38,338 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:39:38,338 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 [2021-02-19 18:39:38,463 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 3 xjuncts. [2021-02-19 18:39:46,976 WARN L202 SmtUtils]: Spent 8.51 s on a formula simplification. DAG size of input: 375 DAG size of output: 357 [2021-02-19 18:39:46,978 INFO L628 ElimStorePlain]: treesize reduction 141, result has 90.9 percent of original size [2021-02-19 18:39:47,213 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2021-02-19 18:39:47,214 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-02-19 18:39:47,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 55 [2021-02-19 18:39:47,243 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 2 xjuncts. [2021-02-19 18:39:56,031 WARN L202 SmtUtils]: Spent 8.79 s on a formula simplification. DAG size of input: 364 DAG size of output: 362 [2021-02-19 18:39:56,033 INFO L628 ElimStorePlain]: treesize reduction 35, result has 97.7 percent of original size [2021-02-19 18:39:56,246 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-19 18:39:56,248 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:39:56,248 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 137 treesize of output 131 [2021-02-19 18:39:56,373 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 3 xjuncts. [2021-02-19 18:40:10,828 WARN L202 SmtUtils]: Spent 14.45 s on a formula simplification. DAG size of input: 368 DAG size of output: 346 [2021-02-19 18:40:10,831 INFO L628 ElimStorePlain]: treesize reduction 220, result has 86.4 percent of original size [2021-02-19 18:40:11,231 INFO L550 ElimStorePlain]: Start of recursive call 1: 18 dim-0 vars, 36 dim-1 vars, End of recursive call: 19 dim-0 vars, and 19 xjuncts. [2021-02-19 18:40:11,232 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 54 variables, input treesize:1945, output treesize:1401 [2021-02-19 18:40:12,776 WARN L202 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 101 [2021-02-19 18:40:17,124 WARN L202 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-02-19 18:40:17,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:40:17,670 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:40:17,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:40:17,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 11 [2021-02-19 18:40:17,696 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:17,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:40:17,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:40:17,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-02-19 18:40:17,723 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:18,425 WARN L202 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-02-19 18:40:18,427 INFO L628 ElimStorePlain]: treesize reduction 99, result has 57.0 percent of original size [2021-02-19 18:40:18,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:40:18,445 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:40:18,447 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 [2021-02-19 18:40:18,454 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:18,718 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 18:40:18,720 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:40:18,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:40:18,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:40:18,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 15 [2021-02-19 18:40:18,744 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:18,983 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-02-19 18:40:18,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:40:19,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-02-19 18:40:19,013 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:19,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:40:19,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 18:40:19,026 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 17 [2021-02-19 18:40:19,032 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:19,298 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2021-02-19 18:40:19,299 INFO L628 ElimStorePlain]: treesize reduction 12, result has 80.3 percent of original size [2021-02-19 18:40:19,309 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:40:19,309 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:265, output treesize:5 [2021-02-19 18:40:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:40:19,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:40:19,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-02-19 18:40:19,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570828888] [2021-02-19 18:40:19,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 18:40:19,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:40:19,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 18:40:19,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2021-02-19 18:40:19,367 INFO L87 Difference]: Start difference. First operand 6710 states and 23836 transitions. Second operand has 25 states, 25 states have (on average 2.44) internal successors, (61), 24 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 18:40:19,715 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-02-19 18:40:20,358 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2021-02-19 18:40:20,786 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 35 [2021-02-19 18:40:21,135 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 32 [2021-02-19 18:40:21,953 WARN L202 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2021-02-19 18:40:23,173 WARN L202 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2021-02-19 18:40:24,508 WARN L202 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2021-02-19 18:40:26,627 WARN L202 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 141 DAG size of output: 124 [2021-02-19 18:40:28,986 WARN L202 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 146 DAG size of output: 128 [2021-02-19 18:40:30,417 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 158 DAG size of output: 102 [2021-02-19 18:40:31,639 WARN L202 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2021-02-19 18:40:31,987 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-02-19 18:40:33,288 WARN L202 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-02-19 18:40:34,355 WARN L202 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2021-02-19 18:40:34,845 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-02-19 18:40:35,310 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2021-02-19 18:40:36,360 WARN L202 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2021-02-19 18:40:36,660 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2021-02-19 18:40:37,558 WARN L202 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-02-19 18:40:38,084 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32 [2021-02-19 18:40:38,641 WARN L202 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-02-19 18:40:39,507 WARN L202 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2021-02-19 18:40:41,739 WARN L202 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2021-02-19 18:40:42,062 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2021-02-19 18:40:42,813 WARN L202 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2021-02-19 18:40:43,566 WARN L202 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-02-19 18:40:44,392 WARN L202 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2021-02-19 18:40:46,555 WARN L202 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 112 DAG size of output: 107 [2021-02-19 18:40:48,056 WARN L202 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 86 [2021-02-19 18:40:49,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:40:49,377 INFO L93 Difference]: Finished difference Result 10692 states and 37052 transitions. [2021-02-19 18:40:49,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-19 18:40:49,384 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.44) internal successors, (61), 24 states have internal predecessors, (61), 0 states have call successors, (0), 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 [2021-02-19 18:40:49,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:40:49,405 INFO L225 Difference]: With dead ends: 10692 [2021-02-19 18:40:49,405 INFO L226 Difference]: Without dead ends: 10577 [2021-02-19 18:40:49,406 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=446, Invalid=2634, Unknown=0, NotChecked=0, Total=3080 [2021-02-19 18:40:49,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10577 states. [2021-02-19 18:40:49,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10577 to 6817. [2021-02-19 18:40:49,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6817 states, 6816 states have (on average 3.5456279342723005) internal successors, (24167), 6816 states have internal predecessors, (24167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 18:40:49,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6817 states to 6817 states and 24167 transitions. [2021-02-19 18:40:49,535 INFO L78 Accepts]: Start accepts. Automaton has 6817 states and 24167 transitions. Word has length 33 [2021-02-19 18:40:49,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:40:49,535 INFO L480 AbstractCegarLoop]: Abstraction has 6817 states and 24167 transitions. [2021-02-19 18:40:49,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.44) internal successors, (61), 24 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 18:40:49,535 INFO L276 IsEmpty]: Start isEmpty. Operand 6817 states and 24167 transitions. [2021-02-19 18:40:49,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:40:49,545 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:40:49,545 INFO L506 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] [2021-02-19 18:40:49,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1390,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:40:49,758 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:40:49,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:40:49,758 INFO L82 PathProgramCache]: Analyzing trace with hash 280016075, now seen corresponding path program 28 times [2021-02-19 18:40:49,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:40:49,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498842037] [2021-02-19 18:40:49,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:40:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:40:50,205 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 16 [2021-02-19 18:40:50,453 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 21 [2021-02-19 18:40:50,609 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2021-02-19 18:40:51,154 WARN L202 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 42 [2021-02-19 18:40:51,967 WARN L202 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 49 [2021-02-19 18:40:53,009 WARN L202 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 48 [2021-02-19 18:40:53,549 WARN L202 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 22 [2021-02-19 18:40:53,987 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 18 [2021-02-19 18:40:54,141 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:40:54,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498842037] [2021-02-19 18:40:54,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629724123] [2021-02-19 18:40:54,141 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:40:54,165 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 18:40:54,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:40:54,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 31 conjunts are in the unsatisfiable core [2021-02-19 18:40:54,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:40:54,676 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 [2021-02-19 18:40:54,681 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:54,743 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:40:54,746 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:40:54,746 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:48 [2021-02-19 18:40:55,119 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 18:40:55,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:40:55,208 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:55,238 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 [2021-02-19 18:40:55,244 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:55,275 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 24 treesize of output 26 [2021-02-19 18:40:55,281 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:55,305 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 24 treesize of output 26 [2021-02-19 18:40:55,311 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:55,708 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-02-19 18:40:55,709 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:40:55,713 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:40:55,713 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:253, output treesize:249 [2021-02-19 18:40:56,309 WARN L202 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-02-19 18:40:57,452 WARN L202 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-02-19 18:40:57,573 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 28 [2021-02-19 18:40:57,582 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:57,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2021-02-19 18:40:57,608 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:57,621 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 28 treesize of output 22 [2021-02-19 18:40:57,629 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:59,293 WARN L202 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2021-02-19 18:40:59,295 INFO L628 ElimStorePlain]: treesize reduction 180, result has 74.4 percent of original size [2021-02-19 18:40:59,312 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 28 treesize of output 22 [2021-02-19 18:40:59,321 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:40:59,336 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 28 treesize of output 22 [2021-02-19 18:40:59,345 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:00,220 WARN L202 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-19 18:41:00,222 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:41:00,243 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 28 treesize of output 22 [2021-02-19 18:41:00,252 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:00,272 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 28 treesize of output 22 [2021-02-19 18:41:00,282 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:00,296 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 23 treesize of output 19 [2021-02-19 18:41:00,307 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:01,079 WARN L202 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-19 18:41:01,081 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:41:01,103 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 28 treesize of output 22 [2021-02-19 18:41:01,112 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:01,133 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 28 treesize of output 22 [2021-02-19 18:41:01,143 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:01,157 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 23 treesize of output 19 [2021-02-19 18:41:01,169 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:01,837 WARN L202 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-02-19 18:41:01,839 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:41:01,844 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-02-19 18:41:01,844 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 4 variables, input treesize:749, output treesize:371 [2021-02-19 18:41:02,654 WARN L202 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-02-19 18:41:05,995 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 29 treesize of output 17 [2021-02-19 18:41:06,003 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:09,433 WARN L202 SmtUtils]: Spent 3.43 s on a formula simplification that was a NOOP. DAG size: 680 [2021-02-19 18:41:09,435 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:41:09,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:41:09,482 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:13,075 WARN L202 SmtUtils]: Spent 3.59 s on a formula simplification that was a NOOP. DAG size: 673 [2021-02-19 18:41:13,077 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:41:13,119 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 27 treesize of output 15 [2021-02-19 18:41:13,126 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:16,731 WARN L202 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 665 DAG size of output: 349 [2021-02-19 18:41:16,734 INFO L628 ElimStorePlain]: treesize reduction 845, result has 52.5 percent of original size [2021-02-19 18:41:16,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select 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 [2021-02-19 18:41:16,766 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:18,297 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 342 [2021-02-19 18:41:18,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:41:18,325 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 27 treesize of output 15 [2021-02-19 18:41:18,332 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:18,520 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 5 [2021-02-19 18:41:18,522 INFO L628 ElimStorePlain]: treesize reduction 886, result has 0.6 percent of original size [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_365 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_366 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_400 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_367 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_368 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_401 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_402 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_369 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_403 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_390 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_391 vanished before elimination [2021-02-19 18:41:18,522 INFO L518 ElimStorePlain]: Eliminatee v_prenex_392 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_393 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_394 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_395 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_396 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_353 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_430 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_397 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_354 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_398 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_399 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_355 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_356 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_357 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_358 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_359 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_426 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_427 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_428 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_429 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_380 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_381 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_382 vanished before elimination [2021-02-19 18:41:18,523 INFO L518 ElimStorePlain]: Eliminatee v_prenex_383 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_384 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_385 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_386 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_420 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_387 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_388 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_421 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_389 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_422 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_423 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_424 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_425 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_415 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_416 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_417 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_418 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_419 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_370 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_371 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_372 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_373 vanished before elimination [2021-02-19 18:41:18,524 INFO L518 ElimStorePlain]: Eliminatee v_prenex_374 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_375 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_376 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_377 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_410 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_411 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_378 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_412 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_379 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_413 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_414 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_404 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_405 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_406 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_407 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_408 vanished before elimination [2021-02-19 18:41:18,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_409 vanished before elimination [2021-02-19 18:41:18,528 INFO L550 ElimStorePlain]: Start of recursive call 1: 80 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:41:18,528 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 80 variables, input treesize:1841, output treesize:5 [2021-02-19 18:41:18,631 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:41:18,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:41:18,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2021-02-19 18:41:18,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184247504] [2021-02-19 18:41:18,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-19 18:41:18,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:41:18,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-19 18:41:18,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2021-02-19 18:41:18,632 INFO L87 Difference]: Start difference. First operand 6817 states and 24167 transitions. Second operand has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 22 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) [2021-02-19 18:41:19,664 WARN L202 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-02-19 18:41:20,285 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 33 [2021-02-19 18:41:21,026 WARN L202 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2021-02-19 18:41:21,529 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-19 18:41:23,438 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2021-02-19 18:41:24,307 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-19 18:41:25,433 WARN L202 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-02-19 18:41:28,233 WARN L202 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2021-02-19 18:41:30,386 WARN L202 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2021-02-19 18:41:31,859 WARN L202 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-19 18:41:33,433 WARN L202 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-19 18:41:34,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:41:34,091 INFO L93 Difference]: Finished difference Result 10751 states and 37417 transitions. [2021-02-19 18:41:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 18:41:34,095 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 22 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 [2021-02-19 18:41:34,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:41:34,112 INFO L225 Difference]: With dead ends: 10751 [2021-02-19 18:41:34,112 INFO L226 Difference]: Without dead ends: 10615 [2021-02-19 18:41:34,113 INFO L762 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2021-02-19 18:41:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10615 states. [2021-02-19 18:41:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10615 to 6901. [2021-02-19 18:41:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6901 states, 6900 states have (on average 3.546231884057971) internal successors, (24469), 6900 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 18:41:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6901 states to 6901 states and 24469 transitions. [2021-02-19 18:41:34,259 INFO L78 Accepts]: Start accepts. Automaton has 6901 states and 24469 transitions. Word has length 33 [2021-02-19 18:41:34,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:41:34,260 INFO L480 AbstractCegarLoop]: Abstraction has 6901 states and 24469 transitions. [2021-02-19 18:41:34,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.5217391304347827) internal successors, (58), 22 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) [2021-02-19 18:41:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand 6901 states and 24469 transitions. [2021-02-19 18:41:34,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-19 18:41:34,269 INFO L498 BasicCegarLoop]: Found error trace [2021-02-19 18:41:34,269 INFO L506 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] [2021-02-19 18:41:34,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2015 [2021-02-19 18:41:34,469 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 18:41:34,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:41:34,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1660477863, now seen corresponding path program 29 times [2021-02-19 18:41:34,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:41:34,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928090542] [2021-02-19 18:41:34,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:41:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:41:34,952 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2021-02-19 18:41:36,082 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 100 DAG size of output: 41 [2021-02-19 18:41:37,402 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 108 DAG size of output: 48 [2021-02-19 18:41:38,435 WARN L202 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 51 [2021-02-19 18:41:38,966 WARN L202 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 32 [2021-02-19 18:41:39,230 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:41:39,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928090542] [2021-02-19 18:41:39,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669399219] [2021-02-19 18:41:39,231 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 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:41:39,254 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-02-19 18:41:39,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:41:39,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 25 conjunts are in the unsatisfiable core [2021-02-19 18:41:39,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:41:39,517 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 [2021-02-19 18:41:39,522 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:39,587 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:41:39,591 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 18:41:39,591 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:42 [2021-02-19 18:41:40,009 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-02-19 18:41:40,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:41:40,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:41:40,105 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:40,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:41:40,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:41:40,146 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:40,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:41:40,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 [2021-02-19 18:41:40,187 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:40,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:41:40,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-02-19 18:41:40,223 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:40,625 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 18:41:40,627 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:41:40,631 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-19 18:41:40,631 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:317, output treesize:313 [2021-02-19 18:41:41,197 WARN L202 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-19 18:41:42,267 WARN L202 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-02-19 18:41:49,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:41:49,344 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2021-02-19 18:41:49,346 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:41:49,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 46 [2021-02-19 18:41:49,360 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:49,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:41:49,527 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2021-02-19 18:41:49,529 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:41:49,529 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 57 treesize of output 53 [2021-02-19 18:41:49,544 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:57,404 WARN L202 SmtUtils]: Spent 7.86 s on a formula simplification. DAG size of input: 305 DAG size of output: 291 [2021-02-19 18:41:57,407 INFO L628 ElimStorePlain]: treesize reduction 680, result has 75.2 percent of original size [2021-02-19 18:41:57,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:41:57,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:41:57,503 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:41:57,504 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 59 treesize of output 47 [2021-02-19 18:41:57,515 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 18:41:57,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:41:57,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:41:57,599 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-02-19 18:41:57,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 35 [2021-02-19 18:41:57,606 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 18:42:01,101 WARN L202 SmtUtils]: Spent 3.49 s on a formula simplification that was a NOOP. DAG size: 296 [2021-02-19 18:42:01,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:42:01,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:01,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:01,203 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:42:01,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 68 [2021-02-19 18:42:01,246 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 3 xjuncts. [2021-02-19 18:42:01,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:01,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:01,329 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-02-19 18:42:01,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 48 [2021-02-19 18:42:01,352 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-02-19 18:42:08,194 WARN L202 SmtUtils]: Spent 6.84 s on a formula simplification. DAG size of input: 288 DAG size of output: 284 [2021-02-19 18:42:08,196 INFO L628 ElimStorePlain]: treesize reduction 55, result has 97.3 percent of original size [2021-02-19 18:42:08,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:08,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:08,299 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:42:08,299 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 52 treesize of output 40 [2021-02-19 18:42:08,314 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 18:42:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:08,480 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2021-02-19 18:42:08,482 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:42:08,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 53 [2021-02-19 18:42:08,502 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 18:42:08,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:08,635 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:42:08,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 50 [2021-02-19 18:42:08,656 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 18:42:08,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:08,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:08,735 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-02-19 18:42:08,735 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 52 treesize of output 32 [2021-02-19 18:42:08,742 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 18:42:08,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:08,918 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2021-02-19 18:42:08,919 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:42:08,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 53 [2021-02-19 18:42:08,932 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 18:42:08,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:08,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:09,032 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:42:09,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 47 [2021-02-19 18:42:09,045 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 18:42:09,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:09,184 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:42:09,184 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 52 treesize of output 50 [2021-02-19 18:42:09,204 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 18:42:09,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:09,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:09,314 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:42:09,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 47 [2021-02-19 18:42:09,326 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 18:42:09,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:09,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:09,431 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:42:09,431 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 59 treesize of output 47 [2021-02-19 18:42:09,443 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 18:42:09,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 18:42:09,639 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2021-02-19 18:42:09,641 INFO L354 Elim1Store]: treesize reduction 4, result has 78.9 percent of original size [2021-02-19 18:42:09,641 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 100 treesize of output 80 Received shutdown request... [2021-02-19 18:42:09,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2043,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:42:09,850 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 18:42:09,853 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 18:42:09,853 INFO L202 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 06:42:09 BasicIcfg [2021-02-19 18:42:09,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 18:42:09,854 INFO L168 Benchmark]: Toolchain (without parser) took 528845.02 ms. Allocated memory was 255.9 MB in the beginning and 1.2 GB in the end (delta: 920.6 MB). Free memory was 236.8 MB in the beginning and 671.7 MB in the end (delta: -434.9 MB). Peak memory consumption was 889.1 MB. Max. memory is 16.0 GB. [2021-02-19 18:42:09,854 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 238.0 MB in the beginning and 238.0 MB in the end (delta: 24.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 18:42:09,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.74 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 18:42:09,854 INFO L168 Benchmark]: Boogie Preprocessor took 15.20 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 18:42:09,854 INFO L168 Benchmark]: RCFGBuilder took 282.87 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 233.6 MB in the end (delta: 220.0 kB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-02-19 18:42:09,854 INFO L168 Benchmark]: TraceAbstraction took 528515.81 ms. Allocated memory was 255.9 MB in the beginning and 1.2 GB in the end (delta: 920.6 MB). Free memory was 232.8 MB in the beginning and 671.7 MB in the end (delta: -438.9 MB). Peak memory consumption was 883.5 MB. Max. memory is 16.0 GB. [2021-02-19 18:42:09,854 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 0.14 ms. Allocated memory is still 255.9 MB. Free memory was 238.0 MB in the beginning and 238.0 MB in the end (delta: 24.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.74 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.20 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 282.87 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 233.6 MB in the end (delta: 220.0 kB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 528515.81 ms. Allocated memory was 255.9 MB in the beginning and 1.2 GB in the end (delta: 920.6 MB). Free memory was 232.8 MB in the beginning and 671.7 MB in the end (delta: -438.9 MB). Peak memory consumption was 883.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 73). Cancelled while BasicCegarLoop was analyzing trace of length 34 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 528.4s, OverallIterations: 34, TraceHistogramMax: 2, AutomataDifference: 84.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1183 SDtfs, 5103 SDslu, 6235 SDs, 0 SdLazy, 13713 SolverSat, 913 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1387 GetRequests, 684 SyntacticMatches, 8 SemanticMatches, 695 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6291 ImplicationChecksByTransitivity, 93.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6901occurred in iteration=33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 33 MinimizatonAttempts, 49783 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 397.9s InterpolantComputationTime, 1807 NumberOfCodeBlocks, 1807 NumberOfCodeBlocksAsserted, 92 NumberOfCheckSat, 1747 ConstructedInterpolants, 19 QuantifiedInterpolants, 2448865 SizeOfPredicates, 83 NumberOfNonLiveVariables, 2189 ConjunctsInSsa, 465 ConjunctsInUnsatCore, 60 InterpolantComputations, 6 PerfectInterpolantSequences, 153/550 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