/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 15:26:07,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 15:26:07,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 15:26:07,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 15:26:08,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 15:26:08,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 15:26:08,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 15:26:08,041 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-Separate.epf [2021-06-05 15:26:08,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 15:26:08,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 15:26:08,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 15:26:08,077 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 15:26:08,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 15:26:08,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 15:26:08,079 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 15:26:08,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 15:26:08,080 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 15:26:08,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 15:26:08,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 15:26:08,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 15:26:08,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 15:26:08,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 15:26:08,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 15:26:08,081 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 15:26:08,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 15:26:08,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 15:26:08,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 15:26:08,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 15:26:08,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 15:26:08,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 15:26:08,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 15:26:08,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 15:26:08,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 15:26:08,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 15:26:08,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 15:26:08,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 15:26:08,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 15:26:08,083 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 15:26:08,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 15:26:08,083 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 15:26:08,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 15:26:08,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 15:26:08,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 15:26:08,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 15:26:08,401 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 15:26:08,402 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 15:26:08,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl [2021-06-05 15:26:08,403 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl' [2021-06-05 15:26:08,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 15:26:08,436 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 15:26:08,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 15:26:08,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 15:26:08,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 15:26:08,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/1) ... [2021-06-05 15:26:08,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/1) ... [2021-06-05 15:26:08,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 15:26:08,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 15:26:08,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 15:26:08,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 15:26:08,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/1) ... [2021-06-05 15:26:08,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/1) ... [2021-06-05 15:26:08,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/1) ... [2021-06-05 15:26:08,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/1) ... [2021-06-05 15:26:08,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/1) ... [2021-06-05 15:26:08,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/1) ... [2021-06-05 15:26:08,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/1) ... [2021-06-05 15:26:08,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 15:26:08,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 15:26:08,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 15:26:08,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 15:26:08,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 15:26:08,547 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-05 15:26:08,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-05 15:26:08,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-05 15:26:08,548 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-05 15:26:08,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-05 15:26:08,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-05 15:26:08,548 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 15:26:08,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 15:26:08,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 15:26:08,548 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-05 15:26:08,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-05 15:26:08,549 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-05 15:26:08,549 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-05 15:26:08,549 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-05 15:26:08,549 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-05 15:26:08,550 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 15:26:08,736 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 15:26:08,736 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 15:26:08,738 INFO L202 PluginConnector]: Adding new model min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:26:08 BoogieIcfgContainer [2021-06-05 15:26:08,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 15:26:08,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 15:26:08,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 15:26:08,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 15:26:08,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:26:08" (1/2) ... [2021-06-05 15:26:08,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e19d84 and model type min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:26:08, skipping insertion in model container [2021-06-05 15:26:08,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:26:08" (2/2) ... [2021-06-05 15:26:08,743 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-dec.wvr.bpl [2021-06-05 15:26:08,748 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 15:26:08,748 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 15:26:08,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 15:26:08,762 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 15:26:08,854 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 15:26:08,890 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 15:26:08,905 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 15:26:08,905 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 15:26:08,906 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 15:26:08,906 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 15:26:08,906 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 15:26:08,906 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 15:26:08,906 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 15:26:08,906 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 15:26:08,923 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 35 transitions, 102 flow [2021-06-05 15:26:08,995 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 712 states, 710 states have (on average 3.6450704225352113) internal successors, (2588), 711 states have internal predecessors, (2588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:08,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 712 states, 710 states have (on average 3.6450704225352113) internal successors, (2588), 711 states have internal predecessors, (2588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-06-05 15:26:09,020 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:09,021 INFO L521 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] [2021-06-05 15:26:09,022 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:09,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:09,029 INFO L82 PathProgramCache]: Analyzing trace with hash -353370600, now seen corresponding path program 1 times [2021-06-05 15:26:09,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:09,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120881025] [2021-06-05 15:26:09,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:09,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:09,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120881025] [2021-06-05 15:26:09,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120881025] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:26:09,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:26:09,207 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 15:26:09,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795306104] [2021-06-05 15:26:09,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 15:26:09,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:09,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 15:26:09,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 15:26:09,231 INFO L87 Difference]: Start difference. First operand has 712 states, 710 states have (on average 3.6450704225352113) internal successors, (2588), 711 states have internal predecessors, (2588), 0 states have call successors, (0), 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 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:09,317 INFO L93 Difference]: Finished difference Result 961 states and 3450 transitions. [2021-06-05 15:26:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 15:26:09,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-06-05 15:26:09,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:09,346 INFO L225 Difference]: With dead ends: 961 [2021-06-05 15:26:09,347 INFO L226 Difference]: Without dead ends: 614 [2021-06-05 15:26:09,349 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 15:26:09,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-06-05 15:26:09,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2021-06-05 15:26:09,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 613 states have (on average 3.592169657422512) internal successors, (2202), 613 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 2202 transitions. [2021-06-05 15:26:09,444 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 2202 transitions. Word has length 23 [2021-06-05 15:26:09,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:09,446 INFO L482 AbstractCegarLoop]: Abstraction has 614 states and 2202 transitions. [2021-06-05 15:26:09,446 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:09,447 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 2202 transitions. [2021-06-05 15:26:09,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-06-05 15:26:09,450 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:09,450 INFO L521 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] [2021-06-05 15:26:09,451 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 15:26:09,451 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:09,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:09,455 INFO L82 PathProgramCache]: Analyzing trace with hash 860248502, now seen corresponding path program 2 times [2021-06-05 15:26:09,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:09,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532514353] [2021-06-05 15:26:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:09,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:09,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532514353] [2021-06-05 15:26:09,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532514353] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:26:09,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:26:09,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 15:26:09,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913024639] [2021-06-05 15:26:09,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 15:26:09,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:09,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 15:26:09,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 15:26:09,556 INFO L87 Difference]: Start difference. First operand 614 states and 2202 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:09,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:09,689 INFO L93 Difference]: Finished difference Result 2435 states and 8733 transitions. [2021-06-05 15:26:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:26:09,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-06-05 15:26:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:09,700 INFO L225 Difference]: With dead ends: 2435 [2021-06-05 15:26:09,700 INFO L226 Difference]: Without dead ends: 1497 [2021-06-05 15:26:09,701 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 46.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:26:09,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2021-06-05 15:26:09,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 859. [2021-06-05 15:26:09,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 858 states have (on average 3.5442890442890445) internal successors, (3041), 858 states have internal predecessors, (3041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:09,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 3041 transitions. [2021-06-05 15:26:09,740 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 3041 transitions. Word has length 23 [2021-06-05 15:26:09,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:09,741 INFO L482 AbstractCegarLoop]: Abstraction has 859 states and 3041 transitions. [2021-06-05 15:26:09,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:09,742 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 3041 transitions. [2021-06-05 15:26:09,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-06-05 15:26:09,745 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:09,745 INFO L521 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] [2021-06-05 15:26:09,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 15:26:09,745 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:09,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:09,746 INFO L82 PathProgramCache]: Analyzing trace with hash 2060589364, now seen corresponding path program 3 times [2021-06-05 15:26:09,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:09,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385188022] [2021-06-05 15:26:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:09,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:09,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:09,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385188022] [2021-06-05 15:26:09,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385188022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:26:09,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:26:09,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 15:26:09,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97352275] [2021-06-05 15:26:09,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 15:26:09,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:09,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 15:26:09,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 15:26:09,817 INFO L87 Difference]: Start difference. First operand 859 states and 3041 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:09,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:09,931 INFO L93 Difference]: Finished difference Result 3289 states and 11673 transitions. [2021-06-05 15:26:09,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:26:09,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-06-05 15:26:09,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:09,951 INFO L225 Difference]: With dead ends: 3289 [2021-06-05 15:26:09,956 INFO L226 Difference]: Without dead ends: 2391 [2021-06-05 15:26:09,956 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 39.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:26:09,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2021-06-05 15:26:09,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 910. [2021-06-05 15:26:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 909 states have (on average 3.553355335533553) internal successors, (3230), 909 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 3230 transitions. [2021-06-05 15:26:10,005 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 3230 transitions. Word has length 23 [2021-06-05 15:26:10,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:10,006 INFO L482 AbstractCegarLoop]: Abstraction has 910 states and 3230 transitions. [2021-06-05 15:26:10,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,006 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 3230 transitions. [2021-06-05 15:26:10,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-06-05 15:26:10,009 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:10,009 INFO L521 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] [2021-06-05 15:26:10,009 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 15:26:10,009 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:10,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:10,010 INFO L82 PathProgramCache]: Analyzing trace with hash -375854000, now seen corresponding path program 4 times [2021-06-05 15:26:10,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:10,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562993701] [2021-06-05 15:26:10,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:10,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:10,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562993701] [2021-06-05 15:26:10,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562993701] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:26:10,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:26:10,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 15:26:10,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86747911] [2021-06-05 15:26:10,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 15:26:10,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:10,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 15:26:10,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 15:26:10,054 INFO L87 Difference]: Start difference. First operand 910 states and 3230 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:10,081 INFO L93 Difference]: Finished difference Result 1081 states and 3814 transitions. [2021-06-05 15:26:10,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 15:26:10,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2021-06-05 15:26:10,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:10,087 INFO L225 Difference]: With dead ends: 1081 [2021-06-05 15:26:10,088 INFO L226 Difference]: Without dead ends: 830 [2021-06-05 15:26:10,088 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 15:26:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2021-06-05 15:26:10,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2021-06-05 15:26:10,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 3.4861278648974667) internal successors, (2890), 829 states have internal predecessors, (2890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 2890 transitions. [2021-06-05 15:26:10,115 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 2890 transitions. Word has length 23 [2021-06-05 15:26:10,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:10,115 INFO L482 AbstractCegarLoop]: Abstraction has 830 states and 2890 transitions. [2021-06-05 15:26:10,115 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 2890 transitions. [2021-06-05 15:26:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 15:26:10,118 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:10,118 INFO L521 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] [2021-06-05 15:26:10,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 15:26:10,119 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:10,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:10,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1603494326, now seen corresponding path program 1 times [2021-06-05 15:26:10,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:10,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922275572] [2021-06-05 15:26:10,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:10,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:10,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922275572] [2021-06-05 15:26:10,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922275572] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:10,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052274194] [2021-06-05 15:26:10,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:10,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 15:26:10,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:10,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052274194] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:10,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:10,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-06-05 15:26:10,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769137235] [2021-06-05 15:26:10,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 15:26:10,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:10,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 15:26:10,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-06-05 15:26:10,395 INFO L87 Difference]: Start difference. First operand 830 states and 2890 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:10,463 INFO L93 Difference]: Finished difference Result 1914 states and 6600 transitions. [2021-06-05 15:26:10,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 15:26:10,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 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 25 [2021-06-05 15:26:10,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:10,474 INFO L225 Difference]: With dead ends: 1914 [2021-06-05 15:26:10,474 INFO L226 Difference]: Without dead ends: 1914 [2021-06-05 15:26:10,474 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 42.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:26:10,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2021-06-05 15:26:10,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1087. [2021-06-05 15:26:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1086 states have (on average 3.603130755064457) internal successors, (3913), 1086 states have internal predecessors, (3913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 3913 transitions. [2021-06-05 15:26:10,515 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 3913 transitions. Word has length 25 [2021-06-05 15:26:10,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:10,515 INFO L482 AbstractCegarLoop]: Abstraction has 1087 states and 3913 transitions. [2021-06-05 15:26:10,516 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 3913 transitions. [2021-06-05 15:26:10,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 15:26:10,520 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:10,520 INFO L521 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] [2021-06-05 15:26:10,743 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:10,744 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:10,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:10,744 INFO L82 PathProgramCache]: Analyzing trace with hash 808417752, now seen corresponding path program 1 times [2021-06-05 15:26:10,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:10,744 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167493883] [2021-06-05 15:26:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:10,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:10,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167493883] [2021-06-05 15:26:10,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167493883] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:26:10,767 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:26:10,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 15:26:10,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240360543] [2021-06-05 15:26:10,768 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 15:26:10,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:10,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 15:26:10,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 15:26:10,768 INFO L87 Difference]: Start difference. First operand 1087 states and 3913 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:10,806 INFO L93 Difference]: Finished difference Result 1486 states and 5095 transitions. [2021-06-05 15:26:10,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 15:26:10,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-06-05 15:26:10,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:10,815 INFO L225 Difference]: With dead ends: 1486 [2021-06-05 15:26:10,815 INFO L226 Difference]: Without dead ends: 1456 [2021-06-05 15:26:10,815 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 15:26:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2021-06-05 15:26:10,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1266. [2021-06-05 15:26:10,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 3.5177865612648223) internal successors, (4450), 1265 states have internal predecessors, (4450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 4450 transitions. [2021-06-05 15:26:10,852 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 4450 transitions. Word has length 25 [2021-06-05 15:26:10,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:10,852 INFO L482 AbstractCegarLoop]: Abstraction has 1266 states and 4450 transitions. [2021-06-05 15:26:10,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 4450 transitions. [2021-06-05 15:26:10,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 15:26:10,856 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:10,856 INFO L521 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] [2021-06-05 15:26:10,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 15:26:10,857 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:10,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:10,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1237283624, now seen corresponding path program 1 times [2021-06-05 15:26:10,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:10,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034440418] [2021-06-05 15:26:10,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:10,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:10,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:10,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034440418] [2021-06-05 15:26:10,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034440418] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:26:10,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:26:10,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 15:26:10,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907087944] [2021-06-05 15:26:10,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 15:26:10,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:10,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 15:26:10,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-05 15:26:10,909 INFO L87 Difference]: Start difference. First operand 1266 states and 4450 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:10,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:10,976 INFO L93 Difference]: Finished difference Result 1470 states and 4972 transitions. [2021-06-05 15:26:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 15:26:10,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-06-05 15:26:10,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:10,984 INFO L225 Difference]: With dead ends: 1470 [2021-06-05 15:26:10,984 INFO L226 Difference]: Without dead ends: 1307 [2021-06-05 15:26:10,985 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.9ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-06-05 15:26:10,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2021-06-05 15:26:11,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1247. [2021-06-05 15:26:11,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1246 states have (on average 3.4935794542536116) internal successors, (4353), 1246 states have internal predecessors, (4353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 4353 transitions. [2021-06-05 15:26:11,017 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 4353 transitions. Word has length 25 [2021-06-05 15:26:11,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:11,017 INFO L482 AbstractCegarLoop]: Abstraction has 1247 states and 4353 transitions. [2021-06-05 15:26:11,017 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 4353 transitions. [2021-06-05 15:26:11,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 15:26:11,020 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:11,021 INFO L521 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] [2021-06-05 15:26:11,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 15:26:11,021 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:11,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:11,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1327684600, now seen corresponding path program 2 times [2021-06-05 15:26:11,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:11,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227718566] [2021-06-05 15:26:11,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:11,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:11,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227718566] [2021-06-05 15:26:11,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227718566] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 15:26:11,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 15:26:11,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 15:26:11,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011427632] [2021-06-05 15:26:11,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 15:26:11,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:11,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 15:26:11,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 15:26:11,049 INFO L87 Difference]: Start difference. First operand 1247 states and 4353 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:11,082 INFO L93 Difference]: Finished difference Result 1418 states and 4897 transitions. [2021-06-05 15:26:11,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 15:26:11,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-06-05 15:26:11,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:11,090 INFO L225 Difference]: With dead ends: 1418 [2021-06-05 15:26:11,090 INFO L226 Difference]: Without dead ends: 1418 [2021-06-05 15:26:11,090 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 15:26:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2021-06-05 15:26:11,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1232. [2021-06-05 15:26:11,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1231 states have (on average 3.505280259951259) internal successors, (4315), 1231 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 4315 transitions. [2021-06-05 15:26:11,124 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 4315 transitions. Word has length 25 [2021-06-05 15:26:11,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:11,124 INFO L482 AbstractCegarLoop]: Abstraction has 1232 states and 4315 transitions. [2021-06-05 15:26:11,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 4315 transitions. [2021-06-05 15:26:11,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 15:26:11,128 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:11,128 INFO L521 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] [2021-06-05 15:26:11,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 15:26:11,128 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:11,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1435620298, now seen corresponding path program 2 times [2021-06-05 15:26:11,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:11,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454218615] [2021-06-05 15:26:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:11,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:11,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454218615] [2021-06-05 15:26:11,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454218615] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:11,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819916532] [2021-06-05 15:26:11,166 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:11,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 15:26:11,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:11,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-05 15:26:11,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:11,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:11,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819916532] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:11,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:11,284 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-06-05 15:26:11,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943213719] [2021-06-05 15:26:11,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 15:26:11,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:11,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 15:26:11,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-06-05 15:26:11,286 INFO L87 Difference]: Start difference. First operand 1232 states and 4315 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:11,358 INFO L93 Difference]: Finished difference Result 1482 states and 5191 transitions. [2021-06-05 15:26:11,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 15:26:11,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 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 25 [2021-06-05 15:26:11,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:11,367 INFO L225 Difference]: With dead ends: 1482 [2021-06-05 15:26:11,367 INFO L226 Difference]: Without dead ends: 1380 [2021-06-05 15:26:11,367 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 24.2ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:26:11,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2021-06-05 15:26:11,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1105. [2021-06-05 15:26:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1104 states have (on average 3.5543478260869565) internal successors, (3924), 1104 states have internal predecessors, (3924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 3924 transitions. [2021-06-05 15:26:11,407 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 3924 transitions. Word has length 25 [2021-06-05 15:26:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:11,407 INFO L482 AbstractCegarLoop]: Abstraction has 1105 states and 3924 transitions. [2021-06-05 15:26:11,407 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 3924 transitions. [2021-06-05 15:26:11,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-06-05 15:26:11,411 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:11,411 INFO L521 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, 1] [2021-06-05 15:26:11,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:11,634 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:11,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:11,634 INFO L82 PathProgramCache]: Analyzing trace with hash 2103083480, now seen corresponding path program 1 times [2021-06-05 15:26:11,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:11,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908641605] [2021-06-05 15:26:11,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:11,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:11,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908641605] [2021-06-05 15:26:11,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908641605] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:11,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300843685] [2021-06-05 15:26:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:11,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-05 15:26:11,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 15:26:11,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300843685] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:11,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:11,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-06-05 15:26:11,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271164183] [2021-06-05 15:26:11,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 15:26:11,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:11,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 15:26:11,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:26:11,802 INFO L87 Difference]: Start difference. First operand 1105 states and 3924 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:11,868 INFO L93 Difference]: Finished difference Result 1282 states and 4578 transitions. [2021-06-05 15:26:11,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 15:26:11,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 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 27 [2021-06-05 15:26:11,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:11,875 INFO L225 Difference]: With dead ends: 1282 [2021-06-05 15:26:11,875 INFO L226 Difference]: Without dead ends: 1282 [2021-06-05 15:26:11,876 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 67.1ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:26:11,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2021-06-05 15:26:11,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1044. [2021-06-05 15:26:11,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1043 states have (on average 3.5618408437200384) internal successors, (3715), 1043 states have internal predecessors, (3715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3715 transitions. [2021-06-05 15:26:11,904 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3715 transitions. Word has length 27 [2021-06-05 15:26:11,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:11,904 INFO L482 AbstractCegarLoop]: Abstraction has 1044 states and 3715 transitions. [2021-06-05 15:26:11,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:11,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3715 transitions. [2021-06-05 15:26:11,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 15:26:11,907 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:11,907 INFO L521 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, 1, 1, 1] [2021-06-05 15:26:12,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-05 15:26:12,130 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:12,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:12,130 INFO L82 PathProgramCache]: Analyzing trace with hash -873778054, now seen corresponding path program 1 times [2021-06-05 15:26:12,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:12,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53025595] [2021-06-05 15:26:12,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:12,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:12,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53025595] [2021-06-05 15:26:12,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53025595] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:12,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467671558] [2021-06-05 15:26:12,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-05 15:26:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:12,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 15:26:12,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:12,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2021-06-05 15:26:12,466 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:12,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:12,470 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:12,470 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-06-05 15:26:12,530 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 [2021-06-05 15:26:12,532 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:12,533 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:12,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:12,534 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-06-05 15:26:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:12,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467671558] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:12,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:12,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-05 15:26:12,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076693347] [2021-06-05 15:26:12,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 15:26:12,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:12,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 15:26:12,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:26:12,556 INFO L87 Difference]: Start difference. First operand 1044 states and 3715 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:12,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:12,758 INFO L93 Difference]: Finished difference Result 2477 states and 8903 transitions. [2021-06-05 15:26:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 15:26:12,758 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 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 [2021-06-05 15:26:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:12,764 INFO L225 Difference]: With dead ends: 2477 [2021-06-05 15:26:12,764 INFO L226 Difference]: Without dead ends: 1549 [2021-06-05 15:26:12,764 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 216.9ms TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-06-05 15:26:12,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2021-06-05 15:26:12,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1288. [2021-06-05 15:26:12,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1287 states have (on average 3.5283605283605284) internal successors, (4541), 1287 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:12,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 4541 transitions. [2021-06-05 15:26:12,799 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 4541 transitions. Word has length 29 [2021-06-05 15:26:12,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:12,799 INFO L482 AbstractCegarLoop]: Abstraction has 1288 states and 4541 transitions. [2021-06-05 15:26:12,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:12,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 4541 transitions. [2021-06-05 15:26:12,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 15:26:12,802 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:12,803 INFO L521 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, 1, 1, 1] [2021-06-05 15:26:13,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:13,026 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:13,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:13,026 INFO L82 PathProgramCache]: Analyzing trace with hash -487573394, now seen corresponding path program 2 times [2021-06-05 15:26:13,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:13,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054225314] [2021-06-05 15:26:13,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:13,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:13,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:13,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054225314] [2021-06-05 15:26:13,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054225314] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:13,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892486866] [2021-06-05 15:26:13,138 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 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 [2021-06-05 15:26:13,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 15:26:13,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:13,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 15:26:13,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:13,265 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 11 treesize of output 7 [2021-06-05 15:26:13,268 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:13,269 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:13,269 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:13,270 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-05 15:26:13,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:13,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892486866] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:13,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:13,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-05 15:26:13,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132887281] [2021-06-05 15:26:13,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 15:26:13,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:13,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 15:26:13,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:26:13,300 INFO L87 Difference]: Start difference. First operand 1288 states and 4541 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 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) [2021-06-05 15:26:13,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:13,593 INFO L93 Difference]: Finished difference Result 3395 states and 12093 transitions. [2021-06-05 15:26:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 15:26:13,593 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 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 29 [2021-06-05 15:26:13,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:13,601 INFO L225 Difference]: With dead ends: 3395 [2021-06-05 15:26:13,601 INFO L226 Difference]: Without dead ends: 1756 [2021-06-05 15:26:13,601 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 247.2ms TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2021-06-05 15:26:13,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2021-06-05 15:26:13,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1019. [2021-06-05 15:26:13,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1018 states have (on average 3.486247544204322) internal successors, (3549), 1018 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:13,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 3549 transitions. [2021-06-05 15:26:13,651 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 3549 transitions. Word has length 29 [2021-06-05 15:26:13,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:13,651 INFO L482 AbstractCegarLoop]: Abstraction has 1019 states and 3549 transitions. [2021-06-05 15:26:13,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 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) [2021-06-05 15:26:13,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 3549 transitions. [2021-06-05 15:26:13,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 15:26:13,655 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:13,655 INFO L521 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, 1, 1, 1] [2021-06-05 15:26:13,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-05 15:26:13,856 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:13,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:13,856 INFO L82 PathProgramCache]: Analyzing trace with hash -22453128, now seen corresponding path program 3 times [2021-06-05 15:26:13,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:13,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246247049] [2021-06-05 15:26:13,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:13,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:13,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:13,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246247049] [2021-06-05 15:26:13,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246247049] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:13,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326200274] [2021-06-05 15:26:13,957 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 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 [2021-06-05 15:26:13,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-05 15:26:13,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:13,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-05 15:26:13,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:14,023 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 0 case distinctions, treesize of input 10 treesize of output 7 [2021-06-05 15:26:14,024 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:14,027 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:14,028 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:14,028 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:7 [2021-06-05 15:26:14,080 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 11 treesize of output 7 [2021-06-05 15:26:14,082 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:14,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:14,083 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:14,084 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-05 15:26:14,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:14,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326200274] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:14,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:14,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-05 15:26:14,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663236392] [2021-06-05 15:26:14,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 15:26:14,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:14,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 15:26:14,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:26:14,100 INFO L87 Difference]: Start difference. First operand 1019 states and 3549 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 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) [2021-06-05 15:26:14,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:14,277 INFO L93 Difference]: Finished difference Result 2225 states and 7823 transitions. [2021-06-05 15:26:14,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 15:26:14,278 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 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 29 [2021-06-05 15:26:14,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:14,288 INFO L225 Difference]: With dead ends: 2225 [2021-06-05 15:26:14,288 INFO L226 Difference]: Without dead ends: 1056 [2021-06-05 15:26:14,288 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 151.3ms TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2021-06-05 15:26:14,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2021-06-05 15:26:14,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 730. [2021-06-05 15:26:14,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 3.486968449931413) internal successors, (2542), 729 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 2542 transitions. [2021-06-05 15:26:14,317 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 2542 transitions. Word has length 29 [2021-06-05 15:26:14,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:14,317 INFO L482 AbstractCegarLoop]: Abstraction has 730 states and 2542 transitions. [2021-06-05 15:26:14,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 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) [2021-06-05 15:26:14,317 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 2542 transitions. [2021-06-05 15:26:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 15:26:14,319 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:14,319 INFO L521 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, 1, 1, 1] [2021-06-05 15:26:14,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:14,543 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:14,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:14,543 INFO L82 PathProgramCache]: Analyzing trace with hash 836346912, now seen corresponding path program 4 times [2021-06-05 15:26:14,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:14,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516545129] [2021-06-05 15:26:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:14,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:14,660 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:14,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516545129] [2021-06-05 15:26:14,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516545129] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:14,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113265837] [2021-06-05 15:26:14,661 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 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 [2021-06-05 15:26:14,704 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 15:26:14,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:14,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 15:26:14,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:14,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2021-06-05 15:26:14,763 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:14,765 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:14,766 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:14,766 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-06-05 15:26:14,782 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 [2021-06-05 15:26:14,784 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:14,785 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:14,785 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:14,785 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-06-05 15:26:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:14,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113265837] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:14,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:14,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-06-05 15:26:14,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741785663] [2021-06-05 15:26:14,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 15:26:14,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:14,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 15:26:14,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:26:14,801 INFO L87 Difference]: Start difference. First operand 730 states and 2542 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:14,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:14,930 INFO L93 Difference]: Finished difference Result 1734 states and 6084 transitions. [2021-06-05 15:26:14,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 15:26:14,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 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 [2021-06-05 15:26:14,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:14,933 INFO L225 Difference]: With dead ends: 1734 [2021-06-05 15:26:14,933 INFO L226 Difference]: Without dead ends: 812 [2021-06-05 15:26:14,934 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 111.3ms TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-06-05 15:26:14,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2021-06-05 15:26:14,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 764. [2021-06-05 15:26:14,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 763 states have (on average 3.4416775884665793) internal successors, (2626), 763 states have internal predecessors, (2626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:14,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 2626 transitions. [2021-06-05 15:26:14,951 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 2626 transitions. Word has length 29 [2021-06-05 15:26:14,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:14,952 INFO L482 AbstractCegarLoop]: Abstraction has 764 states and 2626 transitions. [2021-06-05 15:26:14,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:14,952 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 2626 transitions. [2021-06-05 15:26:14,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 15:26:14,955 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:14,955 INFO L521 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, 1, 1, 1] [2021-06-05 15:26:15,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-05 15:26:15,177 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:15,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:15,177 INFO L82 PathProgramCache]: Analyzing trace with hash 862166658, now seen corresponding path program 5 times [2021-06-05 15:26:15,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:15,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441591605] [2021-06-05 15:26:15,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:15,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 15:26:15,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:15,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441591605] [2021-06-05 15:26:15,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441591605] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:15,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264119087] [2021-06-05 15:26:15,206 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 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 [2021-06-05 15:26:15,270 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-05 15:26:15,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:15,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-05 15:26:15,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:15,321 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 15:26:15,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264119087] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:15,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:15,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-05 15:26:15,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384449986] [2021-06-05 15:26:15,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 15:26:15,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:15,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 15:26:15,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:26:15,323 INFO L87 Difference]: Start difference. First operand 764 states and 2626 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:15,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:15,408 INFO L93 Difference]: Finished difference Result 2158 states and 7467 transitions. [2021-06-05 15:26:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:26:15,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 [2021-06-05 15:26:15,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:15,415 INFO L225 Difference]: With dead ends: 2158 [2021-06-05 15:26:15,415 INFO L226 Difference]: Without dead ends: 2158 [2021-06-05 15:26:15,417 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 37.5ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:26:15,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-06-05 15:26:15,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1150. [2021-06-05 15:26:15,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 3.6257615317667535) internal successors, (4166), 1149 states have internal predecessors, (4166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:15,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4166 transitions. [2021-06-05 15:26:15,454 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4166 transitions. Word has length 31 [2021-06-05 15:26:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:15,454 INFO L482 AbstractCegarLoop]: Abstraction has 1150 states and 4166 transitions. [2021-06-05 15:26:15,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4166 transitions. [2021-06-05 15:26:15,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 15:26:15,457 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:15,457 INFO L521 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, 1, 1, 1] [2021-06-05 15:26:15,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-05 15:26:15,686 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:15,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:15,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1214611312, now seen corresponding path program 6 times [2021-06-05 15:26:15,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:15,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192883425] [2021-06-05 15:26:15,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 15:26:15,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:15,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192883425] [2021-06-05 15:26:15,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192883425] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:15,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302602364] [2021-06-05 15:26:15,712 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 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 [2021-06-05 15:26:15,746 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-05 15:26:15,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:15,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-05 15:26:15,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:15,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 15:26:15,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302602364] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:15,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:15,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-05 15:26:15,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17476762] [2021-06-05 15:26:15,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 15:26:15,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:15,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 15:26:15,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:26:15,810 INFO L87 Difference]: Start difference. First operand 1150 states and 4166 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 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) [2021-06-05 15:26:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:16,240 INFO L93 Difference]: Finished difference Result 3097 states and 11097 transitions. [2021-06-05 15:26:16,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 15:26:16,242 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 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 31 [2021-06-05 15:26:16,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:16,252 INFO L225 Difference]: With dead ends: 3097 [2021-06-05 15:26:16,252 INFO L226 Difference]: Without dead ends: 3092 [2021-06-05 15:26:16,253 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 259.9ms TimeCoverageRelationStatistics Valid=308, Invalid=952, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 15:26:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2021-06-05 15:26:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 1871. [2021-06-05 15:26:16,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1870 states have (on average 3.8058823529411763) internal successors, (7117), 1870 states have internal predecessors, (7117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:16,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 7117 transitions. [2021-06-05 15:26:16,311 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 7117 transitions. Word has length 31 [2021-06-05 15:26:16,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:16,312 INFO L482 AbstractCegarLoop]: Abstraction has 1871 states and 7117 transitions. [2021-06-05 15:26:16,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 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) [2021-06-05 15:26:16,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 7117 transitions. [2021-06-05 15:26:16,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 15:26:16,316 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:16,316 INFO L521 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2021-06-05 15:26:16,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-05 15:26:16,539 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:16,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:16,539 INFO L82 PathProgramCache]: Analyzing trace with hash -373015140, now seen corresponding path program 7 times [2021-06-05 15:26:16,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:16,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502845643] [2021-06-05 15:26:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:16,596 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-05 15:26:16,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:16,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502845643] [2021-06-05 15:26:16,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502845643] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:16,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872524470] [2021-06-05 15:26:16,596 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 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 [2021-06-05 15:26:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:16,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-05 15:26:16,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:16,702 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-05 15:26:16,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872524470] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:16,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:16,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-05 15:26:16,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778063059] [2021-06-05 15:26:16,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 15:26:16,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:16,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 15:26:16,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:26:16,704 INFO L87 Difference]: Start difference. First operand 1871 states and 7117 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:16,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:16,787 INFO L93 Difference]: Finished difference Result 3521 states and 13072 transitions. [2021-06-05 15:26:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:26:16,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 15:26:16,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:16,798 INFO L225 Difference]: With dead ends: 3521 [2021-06-05 15:26:16,798 INFO L226 Difference]: Without dead ends: 3502 [2021-06-05 15:26:16,798 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 42.8ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:26:16,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2021-06-05 15:26:16,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2458. [2021-06-05 15:26:16,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2457 states have (on average 3.938949938949939) internal successors, (9678), 2457 states have internal predecessors, (9678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:16,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 9678 transitions. [2021-06-05 15:26:16,865 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 9678 transitions. Word has length 33 [2021-06-05 15:26:16,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:16,866 INFO L482 AbstractCegarLoop]: Abstraction has 2458 states and 9678 transitions. [2021-06-05 15:26:16,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:16,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 9678 transitions. [2021-06-05 15:26:16,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 15:26:16,895 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:16,895 INFO L521 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2021-06-05 15:26:17,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-05 15:26:17,113 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:17,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:17,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1066357152, now seen corresponding path program 8 times [2021-06-05 15:26:17,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:17,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420649805] [2021-06-05 15:26:17,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-05 15:26:17,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:17,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420649805] [2021-06-05 15:26:17,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420649805] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:17,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126713690] [2021-06-05 15:26:17,148 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 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 [2021-06-05 15:26:17,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 15:26:17,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:17,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-05 15:26:17,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:17,237 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 15:26:17,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126713690] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:17,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:17,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2021-06-05 15:26:17,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120027733] [2021-06-05 15:26:17,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 15:26:17,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:17,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 15:26:17,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-05 15:26:17,238 INFO L87 Difference]: Start difference. First operand 2458 states and 9678 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:17,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:17,316 INFO L93 Difference]: Finished difference Result 3425 states and 12799 transitions. [2021-06-05 15:26:17,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 15:26:17,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 15:26:17,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:17,326 INFO L225 Difference]: With dead ends: 3425 [2021-06-05 15:26:17,326 INFO L226 Difference]: Without dead ends: 3425 [2021-06-05 15:26:17,327 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 29.2ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:26:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2021-06-05 15:26:17,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 2506. [2021-06-05 15:26:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 2505 states have (on average 3.9405189620758483) internal successors, (9871), 2505 states have internal predecessors, (9871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:17,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 9871 transitions. [2021-06-05 15:26:17,395 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 9871 transitions. Word has length 33 [2021-06-05 15:26:17,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:17,396 INFO L482 AbstractCegarLoop]: Abstraction has 2506 states and 9871 transitions. [2021-06-05 15:26:17,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:17,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 9871 transitions. [2021-06-05 15:26:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-06-05 15:26:17,401 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:17,402 INFO L521 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2021-06-05 15:26:17,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-05 15:26:17,621 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:17,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:17,621 INFO L82 PathProgramCache]: Analyzing trace with hash -279862338, now seen corresponding path program 9 times [2021-06-05 15:26:17,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:17,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809147975] [2021-06-05 15:26:17,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:17,750 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-05 15:26:17,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:17,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809147975] [2021-06-05 15:26:17,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809147975] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:17,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174579989] [2021-06-05 15:26:17,750 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:17,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-05 15:26:17,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:17,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-05 15:26:17,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:17,880 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 0 case distinctions, treesize of input 16 treesize of output 11 [2021-06-05 15:26:17,881 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:17,884 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:17,885 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:17,885 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-06-05 15:26:17,934 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 [2021-06-05 15:26:17,936 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:17,937 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:17,937 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:17,937 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-06-05 15:26:17,964 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:17,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174579989] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:17,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:17,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-06-05 15:26:17,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251266373] [2021-06-05 15:26:17,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-05 15:26:17,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:17,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-05 15:26:17,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-06-05 15:26:17,969 INFO L87 Difference]: Start difference. First operand 2506 states and 9871 transitions. Second operand has 16 states, 16 states have (on average 3.75) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:18,731 INFO L93 Difference]: Finished difference Result 7202 states and 27392 transitions. [2021-06-05 15:26:18,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 15:26:18,732 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-06-05 15:26:18,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:18,744 INFO L225 Difference]: With dead ends: 7202 [2021-06-05 15:26:18,744 INFO L226 Difference]: Without dead ends: 3817 [2021-06-05 15:26:18,745 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 410.9ms TimeCoverageRelationStatistics Valid=186, Invalid=870, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 15:26:18,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2021-06-05 15:26:18,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 2612. [2021-06-05 15:26:18,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2611 states have (on average 3.8885484488701647) internal successors, (10153), 2611 states have internal predecessors, (10153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:18,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 10153 transitions. [2021-06-05 15:26:18,813 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 10153 transitions. Word has length 35 [2021-06-05 15:26:18,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:18,813 INFO L482 AbstractCegarLoop]: Abstraction has 2612 states and 10153 transitions. [2021-06-05 15:26:18,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:18,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 10153 transitions. [2021-06-05 15:26:18,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-06-05 15:26:18,818 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:18,819 INFO L521 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2021-06-05 15:26:19,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:19,033 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:19,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:19,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1543863878, now seen corresponding path program 10 times [2021-06-05 15:26:19,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:19,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602515235] [2021-06-05 15:26:19,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-05 15:26:19,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:19,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602515235] [2021-06-05 15:26:19,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602515235] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:19,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026302149] [2021-06-05 15:26:19,152 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 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 [2021-06-05 15:26:19,184 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 15:26:19,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:19,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-05 15:26:19,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:19,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:19,240 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-06-05 15:26:19,241 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:19,245 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:19,246 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:19,246 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:12 [2021-06-05 15:26:19,265 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 0 case distinctions, treesize of input 16 treesize of output 11 [2021-06-05 15:26:19,266 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:19,269 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:19,269 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:19,270 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-06-05 15:26:19,309 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 [2021-06-05 15:26:19,311 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:19,312 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:19,312 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:19,312 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-06-05 15:26:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 15:26:19,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026302149] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:19,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:19,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-06-05 15:26:19,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517898871] [2021-06-05 15:26:19,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 15:26:19,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:19,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 15:26:19,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-05 15:26:19,327 INFO L87 Difference]: Start difference. First operand 2612 states and 10153 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:19,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:19,801 INFO L93 Difference]: Finished difference Result 5807 states and 22379 transitions. [2021-06-05 15:26:19,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 15:26:19,802 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 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 35 [2021-06-05 15:26:19,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:19,810 INFO L225 Difference]: With dead ends: 5807 [2021-06-05 15:26:19,810 INFO L226 Difference]: Without dead ends: 2780 [2021-06-05 15:26:19,811 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 276.4ms TimeCoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2021-06-05 15:26:19,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2021-06-05 15:26:19,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2646. [2021-06-05 15:26:19,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 2645 states have (on average 3.86351606805293) internal successors, (10219), 2645 states have internal predecessors, (10219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:19,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 10219 transitions. [2021-06-05 15:26:19,867 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 10219 transitions. Word has length 35 [2021-06-05 15:26:19,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:19,868 INFO L482 AbstractCegarLoop]: Abstraction has 2646 states and 10219 transitions. [2021-06-05 15:26:19,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 14 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:19,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 10219 transitions. [2021-06-05 15:26:19,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 15:26:19,874 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:19,874 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1] [2021-06-05 15:26:20,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-06-05 15:26:20,097 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:20,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:20,097 INFO L82 PathProgramCache]: Analyzing trace with hash -833611472, now seen corresponding path program 11 times [2021-06-05 15:26:20,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:20,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426309161] [2021-06-05 15:26:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:20,126 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-05 15:26:20,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:20,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426309161] [2021-06-05 15:26:20,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426309161] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:20,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167232427] [2021-06-05 15:26:20,126 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 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 [2021-06-05 15:26:20,205 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-05 15:26:20,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:20,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-05 15:26:20,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:20,268 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-05 15:26:20,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167232427] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:20,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:20,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2021-06-05 15:26:20,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746785541] [2021-06-05 15:26:20,270 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 15:26:20,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:20,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 15:26:20,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-05 15:26:20,271 INFO L87 Difference]: Start difference. First operand 2646 states and 10219 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:20,373 INFO L93 Difference]: Finished difference Result 6355 states and 23872 transitions. [2021-06-05 15:26:20,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 15:26:20,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 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 37 [2021-06-05 15:26:20,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:20,394 INFO L225 Difference]: With dead ends: 6355 [2021-06-05 15:26:20,394 INFO L226 Difference]: Without dead ends: 6330 [2021-06-05 15:26:20,394 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 29.0ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-05 15:26:20,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6330 states. [2021-06-05 15:26:20,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6330 to 3550. [2021-06-05 15:26:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 3549 states have (on average 4.066215835446605) internal successors, (14431), 3549 states have internal predecessors, (14431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:20,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 14431 transitions. [2021-06-05 15:26:20,521 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 14431 transitions. Word has length 37 [2021-06-05 15:26:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:20,522 INFO L482 AbstractCegarLoop]: Abstraction has 3550 states and 14431 transitions. [2021-06-05 15:26:20,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:20,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 14431 transitions. [2021-06-05 15:26:20,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 15:26:20,531 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:20,531 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1] [2021-06-05 15:26:20,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:20,745 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:20,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:20,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1361280888, now seen corresponding path program 12 times [2021-06-05 15:26:20,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:20,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048936005] [2021-06-05 15:26:20,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-05 15:26:20,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:20,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048936005] [2021-06-05 15:26:20,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048936005] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:20,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726711857] [2021-06-05 15:26:20,793 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 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 [2021-06-05 15:26:20,834 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-05 15:26:20,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:20,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-05 15:26:20,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 15:26:20,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726711857] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:20,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:20,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2021-06-05 15:26:20,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143609569] [2021-06-05 15:26:20,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 15:26:20,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:20,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 15:26:20,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-06-05 15:26:20,928 INFO L87 Difference]: Start difference. First operand 3550 states and 14431 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 12 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) [2021-06-05 15:26:21,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:21,946 INFO L93 Difference]: Finished difference Result 18520 states and 67963 transitions. [2021-06-05 15:26:21,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-05 15:26:21,946 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 12 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 37 [2021-06-05 15:26:21,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:21,981 INFO L225 Difference]: With dead ends: 18520 [2021-06-05 15:26:21,981 INFO L226 Difference]: Without dead ends: 18520 [2021-06-05 15:26:21,982 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2138 ImplicationChecksByTransitivity, 643.8ms TimeCoverageRelationStatistics Valid=1229, Invalid=4173, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 15:26:22,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18520 states. [2021-06-05 15:26:22,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18520 to 4298. [2021-06-05 15:26:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 4297 states have (on average 4.053060274610194) internal successors, (17416), 4297 states have internal predecessors, (17416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:22,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 17416 transitions. [2021-06-05 15:26:22,187 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 17416 transitions. Word has length 37 [2021-06-05 15:26:22,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:22,188 INFO L482 AbstractCegarLoop]: Abstraction has 4298 states and 17416 transitions. [2021-06-05 15:26:22,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 12 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) [2021-06-05 15:26:22,188 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 17416 transitions. [2021-06-05 15:26:22,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-05 15:26:22,198 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:22,198 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-06-05 15:26:22,420 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-06-05 15:26:22,421 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:22,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:22,421 INFO L82 PathProgramCache]: Analyzing trace with hash 244206134, now seen corresponding path program 13 times [2021-06-05 15:26:22,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:22,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385289571] [2021-06-05 15:26:22,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:22,470 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-05 15:26:22,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:22,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385289571] [2021-06-05 15:26:22,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385289571] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:22,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581249987] [2021-06-05 15:26:22,470 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 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 [2021-06-05 15:26:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:22,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-05 15:26:22,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:22,559 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-05 15:26:22,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581249987] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:22,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:22,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-06-05 15:26:22,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499876433] [2021-06-05 15:26:22,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:26:22,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:22,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:26:22,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:26:22,560 INFO L87 Difference]: Start difference. First operand 4298 states and 17416 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:22,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:22,663 INFO L93 Difference]: Finished difference Result 7391 states and 28099 transitions. [2021-06-05 15:26:22,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 15:26:22,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 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 39 [2021-06-05 15:26:22,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:22,680 INFO L225 Difference]: With dead ends: 7391 [2021-06-05 15:26:22,680 INFO L226 Difference]: Without dead ends: 7391 [2021-06-05 15:26:22,681 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 44.0ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-06-05 15:26:22,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7391 states. [2021-06-05 15:26:22,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7391 to 3716. [2021-06-05 15:26:22,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3716 states, 3715 states have (on average 3.973620457604307) internal successors, (14762), 3715 states have internal predecessors, (14762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:22,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 14762 transitions. [2021-06-05 15:26:22,775 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 14762 transitions. Word has length 39 [2021-06-05 15:26:22,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:22,775 INFO L482 AbstractCegarLoop]: Abstraction has 3716 states and 14762 transitions. [2021-06-05 15:26:22,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:22,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 14762 transitions. [2021-06-05 15:26:22,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-05 15:26:22,784 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:22,784 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-06-05 15:26:23,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:23,007 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:23,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:23,007 INFO L82 PathProgramCache]: Analyzing trace with hash 464290510, now seen corresponding path program 14 times [2021-06-05 15:26:23,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:23,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564305198] [2021-06-05 15:26:23,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:23,068 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-05 15:26:23,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:23,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564305198] [2021-06-05 15:26:23,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564305198] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:23,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198275364] [2021-06-05 15:26:23,069 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 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 [2021-06-05 15:26:23,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 15:26:23,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:23,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-05 15:26:23,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:23,261 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-05 15:26:23,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198275364] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:23,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:23,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-05 15:26:23,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57410151] [2021-06-05 15:26:23,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:26:23,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:23,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:26:23,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:26:23,263 INFO L87 Difference]: Start difference. First operand 3716 states and 14762 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:23,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:23,410 INFO L93 Difference]: Finished difference Result 8929 states and 34274 transitions. [2021-06-05 15:26:23,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 15:26:23,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 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 39 [2021-06-05 15:26:23,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:23,426 INFO L225 Difference]: With dead ends: 8929 [2021-06-05 15:26:23,426 INFO L226 Difference]: Without dead ends: 8929 [2021-06-05 15:26:23,427 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 68.0ms TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-06-05 15:26:23,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8929 states. [2021-06-05 15:26:23,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8929 to 5458. [2021-06-05 15:26:23,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 4.080263881253436) internal successors, (22266), 5457 states have internal predecessors, (22266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:23,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 22266 transitions. [2021-06-05 15:26:23,540 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 22266 transitions. Word has length 39 [2021-06-05 15:26:23,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:23,541 INFO L482 AbstractCegarLoop]: Abstraction has 5458 states and 22266 transitions. [2021-06-05 15:26:23,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:23,541 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 22266 transitions. [2021-06-05 15:26:23,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-05 15:26:23,554 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:23,554 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2021-06-05 15:26:23,771 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-05 15:26:23,771 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:23,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:23,772 INFO L82 PathProgramCache]: Analyzing trace with hash -316201746, now seen corresponding path program 15 times [2021-06-05 15:26:23,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:23,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406291188] [2021-06-05 15:26:23,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-05 15:26:23,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:23,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406291188] [2021-06-05 15:26:23,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406291188] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:23,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454725979] [2021-06-05 15:26:23,823 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 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 [2021-06-05 15:26:23,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-05 15:26:23,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:23,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 15:26:23,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-05 15:26:23,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454725979] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:23,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:23,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2021-06-05 15:26:23,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990747546] [2021-06-05 15:26:23,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-05 15:26:23,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:23,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-05 15:26:23,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-06-05 15:26:23,988 INFO L87 Difference]: Start difference. First operand 5458 states and 22266 transitions. Second operand has 16 states, 16 states have (on average 4.125) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:24,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:24,867 INFO L93 Difference]: Finished difference Result 25578 states and 101328 transitions. [2021-06-05 15:26:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-06-05 15:26:24,867 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-06-05 15:26:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:24,929 INFO L225 Difference]: With dead ends: 25578 [2021-06-05 15:26:24,929 INFO L226 Difference]: Without dead ends: 25021 [2021-06-05 15:26:24,930 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 518.3ms TimeCoverageRelationStatistics Valid=870, Invalid=3420, Unknown=0, NotChecked=0, Total=4290 [2021-06-05 15:26:24,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25021 states. [2021-06-05 15:26:25,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25021 to 12090. [2021-06-05 15:26:25,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12090 states, 12089 states have (on average 4.159980147241294) internal successors, (50290), 12089 states have internal predecessors, (50290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:25,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12090 states to 12090 states and 50290 transitions. [2021-06-05 15:26:25,342 INFO L78 Accepts]: Start accepts. Automaton has 12090 states and 50290 transitions. Word has length 41 [2021-06-05 15:26:25,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:25,342 INFO L482 AbstractCegarLoop]: Abstraction has 12090 states and 50290 transitions. [2021-06-05 15:26:25,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:25,342 INFO L276 IsEmpty]: Start isEmpty. Operand 12090 states and 50290 transitions. [2021-06-05 15:26:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-05 15:26:25,459 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:25,459 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:26:25,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-06-05 15:26:25,682 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:25,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:25,682 INFO L82 PathProgramCache]: Analyzing trace with hash 76824112, now seen corresponding path program 16 times [2021-06-05 15:26:25,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:25,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625359321] [2021-06-05 15:26:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:25,875 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-05 15:26:25,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:25,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625359321] [2021-06-05 15:26:25,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625359321] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:25,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448283826] [2021-06-05 15:26:25,876 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 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 [2021-06-05 15:26:25,920 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 15:26:25,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:25,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-05 15:26:25,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:25,982 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:25,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 13 [2021-06-05 15:26:25,984 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:25,990 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:25,991 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:25,991 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:19 [2021-06-05 15:26:26,094 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 0 case distinctions, treesize of input 16 treesize of output 11 [2021-06-05 15:26:26,095 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:26,099 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:26,100 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:26,100 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:14 [2021-06-05 15:26:26,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:26,131 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2021-06-05 15:26:26,132 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:26,137 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:26,138 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:26,138 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:11 [2021-06-05 15:26:26,269 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:26,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 20 [2021-06-05 15:26:26,278 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 15:26:26,282 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-06-05 15:26:26,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 12 [2021-06-05 15:26:26,284 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:26,290 INFO L628 ElimStorePlain]: treesize reduction 16, result has 23.8 percent of original size [2021-06-05 15:26:26,291 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:26,291 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:5 [2021-06-05 15:26:26,306 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 15:26:26,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448283826] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:26,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:26,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 19 [2021-06-05 15:26:26,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124866483] [2021-06-05 15:26:26,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 15:26:26,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:26,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 15:26:26,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-06-05 15:26:26,308 INFO L87 Difference]: Start difference. First operand 12090 states and 50290 transitions. Second operand has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 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) [2021-06-05 15:26:27,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:27,289 INFO L93 Difference]: Finished difference Result 29674 states and 123111 transitions. [2021-06-05 15:26:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 15:26:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 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 41 [2021-06-05 15:26:27,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:27,316 INFO L225 Difference]: With dead ends: 29674 [2021-06-05 15:26:27,316 INFO L226 Difference]: Without dead ends: 10661 [2021-06-05 15:26:27,317 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 513.9ms TimeCoverageRelationStatistics Valid=164, Invalid=958, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 15:26:27,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10661 states. [2021-06-05 15:26:27,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10661 to 10661. [2021-06-05 15:26:27,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10661 states, 10660 states have (on average 4.182833020637899) internal successors, (44589), 10660 states have internal predecessors, (44589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:27,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10661 states to 10661 states and 44589 transitions. [2021-06-05 15:26:27,665 INFO L78 Accepts]: Start accepts. Automaton has 10661 states and 44589 transitions. Word has length 41 [2021-06-05 15:26:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:27,665 INFO L482 AbstractCegarLoop]: Abstraction has 10661 states and 44589 transitions. [2021-06-05 15:26:27,665 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 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) [2021-06-05 15:26:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 10661 states and 44589 transitions. [2021-06-05 15:26:27,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 15:26:27,693 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:27,693 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:26:27,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-06-05 15:26:27,903 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:27,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:27,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1918512476, now seen corresponding path program 17 times [2021-06-05 15:26:27,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:27,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513308063] [2021-06-05 15:26:27,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:27,954 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-05 15:26:27,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:27,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513308063] [2021-06-05 15:26:27,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513308063] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:27,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754273709] [2021-06-05 15:26:27,955 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 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 [2021-06-05 15:26:28,005 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-05 15:26:28,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:28,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 15:26:28,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-05 15:26:28,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754273709] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:28,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:28,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-06-05 15:26:28,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268041298] [2021-06-05 15:26:28,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 15:26:28,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:28,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 15:26:28,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-05 15:26:28,073 INFO L87 Difference]: Start difference. First operand 10661 states and 44589 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:28,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:28,404 INFO L93 Difference]: Finished difference Result 29121 states and 115415 transitions. [2021-06-05 15:26:28,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 15:26:28,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 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 45 [2021-06-05 15:26:28,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:28,577 INFO L225 Difference]: With dead ends: 29121 [2021-06-05 15:26:28,577 INFO L226 Difference]: Without dead ends: 29121 [2021-06-05 15:26:28,577 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 83.4ms TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-06-05 15:26:28,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29121 states. [2021-06-05 15:26:29,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29121 to 13495. [2021-06-05 15:26:29,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 4.214910330517267) internal successors, (56876), 13494 states have internal predecessors, (56876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:29,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 56876 transitions. [2021-06-05 15:26:29,066 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 56876 transitions. Word has length 45 [2021-06-05 15:26:29,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:29,066 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 56876 transitions. [2021-06-05 15:26:29,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:29,066 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 56876 transitions. [2021-06-05 15:26:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 15:26:29,096 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:29,096 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:26:29,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-06-05 15:26:29,309 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:29,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:29,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1257155186, now seen corresponding path program 18 times [2021-06-05 15:26:29,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:29,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642985774] [2021-06-05 15:26:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-05 15:26:29,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:29,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642985774] [2021-06-05 15:26:29,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642985774] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:29,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991224302] [2021-06-05 15:26:29,347 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 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 [2021-06-05 15:26:29,385 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-05 15:26:29,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:29,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 15:26:29,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-05 15:26:29,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991224302] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:29,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:29,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-06-05 15:26:29,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370535405] [2021-06-05 15:26:29,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:26:29,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:29,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:26:29,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:26:29,452 INFO L87 Difference]: Start difference. First operand 13495 states and 56876 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:29,789 INFO L93 Difference]: Finished difference Result 17084 states and 68774 transitions. [2021-06-05 15:26:29,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 15:26:29,789 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 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 45 [2021-06-05 15:26:29,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:29,831 INFO L225 Difference]: With dead ends: 17084 [2021-06-05 15:26:29,831 INFO L226 Difference]: Without dead ends: 17079 [2021-06-05 15:26:29,831 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 41.9ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-06-05 15:26:29,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17079 states. [2021-06-05 15:26:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17079 to 11949. [2021-06-05 15:26:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11949 states, 11948 states have (on average 4.176012721794443) internal successors, (49895), 11948 states have internal predecessors, (49895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:30,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11949 states to 11949 states and 49895 transitions. [2021-06-05 15:26:30,186 INFO L78 Accepts]: Start accepts. Automaton has 11949 states and 49895 transitions. Word has length 45 [2021-06-05 15:26:30,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:30,186 INFO L482 AbstractCegarLoop]: Abstraction has 11949 states and 49895 transitions. [2021-06-05 15:26:30,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:30,187 INFO L276 IsEmpty]: Start isEmpty. Operand 11949 states and 49895 transitions. [2021-06-05 15:26:30,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 15:26:30,208 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:30,208 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:26:30,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-06-05 15:26:30,409 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:30,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:30,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1355059624, now seen corresponding path program 19 times [2021-06-05 15:26:30,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:30,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174727762] [2021-06-05 15:26:30,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-05 15:26:30,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:30,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174727762] [2021-06-05 15:26:30,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174727762] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:30,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562424185] [2021-06-05 15:26:30,453 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 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 [2021-06-05 15:26:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:30,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 15:26:30,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:30,569 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-05 15:26:30,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562424185] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:30,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:30,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 8 [2021-06-05 15:26:30,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356832522] [2021-06-05 15:26:30,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 15:26:30,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:30,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 15:26:30,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-05 15:26:30,572 INFO L87 Difference]: Start difference. First operand 11949 states and 49895 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:30,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:30,938 INFO L93 Difference]: Finished difference Result 25411 states and 101469 transitions. [2021-06-05 15:26:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 15:26:30,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 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 45 [2021-06-05 15:26:30,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:31,002 INFO L225 Difference]: With dead ends: 25411 [2021-06-05 15:26:31,002 INFO L226 Difference]: Without dead ends: 25396 [2021-06-05 15:26:31,002 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 55.5ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-06-05 15:26:31,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25396 states. [2021-06-05 15:26:31,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25396 to 16947. [2021-06-05 15:26:31,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16947 states, 16946 states have (on average 4.316711908414965) internal successors, (73151), 16946 states have internal predecessors, (73151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:31,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16947 states to 16947 states and 73151 transitions. [2021-06-05 15:26:31,479 INFO L78 Accepts]: Start accepts. Automaton has 16947 states and 73151 transitions. Word has length 45 [2021-06-05 15:26:31,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:31,479 INFO L482 AbstractCegarLoop]: Abstraction has 16947 states and 73151 transitions. [2021-06-05 15:26:31,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:31,479 INFO L276 IsEmpty]: Start isEmpty. Operand 16947 states and 73151 transitions. [2021-06-05 15:26:31,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 15:26:31,512 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:31,512 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:26:31,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:31,715 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:31,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:31,715 INFO L82 PathProgramCache]: Analyzing trace with hash -2063999716, now seen corresponding path program 20 times [2021-06-05 15:26:31,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:31,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036032787] [2021-06-05 15:26:31,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-05 15:26:31,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:31,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036032787] [2021-06-05 15:26:31,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036032787] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:31,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854647646] [2021-06-05 15:26:31,770 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 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 [2021-06-05 15:26:31,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 15:26:31,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:31,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 15:26:31,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:31,921 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2021-06-05 15:26:31,996 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-05 15:26:31,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854647646] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:31,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:31,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-06-05 15:26:31,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739088753] [2021-06-05 15:26:31,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 15:26:31,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:31,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 15:26:31,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-05 15:26:31,998 INFO L87 Difference]: Start difference. First operand 16947 states and 73151 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:32,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:32,360 INFO L93 Difference]: Finished difference Result 28052 states and 112596 transitions. [2021-06-05 15:26:32,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 15:26:32,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 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 45 [2021-06-05 15:26:32,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:32,508 INFO L225 Difference]: With dead ends: 28052 [2021-06-05 15:26:32,508 INFO L226 Difference]: Without dead ends: 28052 [2021-06-05 15:26:32,510 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 47.7ms TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-06-05 15:26:32,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28052 states. [2021-06-05 15:26:32,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28052 to 17627. [2021-06-05 15:26:32,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17627 states, 17626 states have (on average 4.310790877113355) internal successors, (75982), 17626 states have internal predecessors, (75982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:33,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17627 states to 17627 states and 75982 transitions. [2021-06-05 15:26:33,045 INFO L78 Accepts]: Start accepts. Automaton has 17627 states and 75982 transitions. Word has length 45 [2021-06-05 15:26:33,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:33,045 INFO L482 AbstractCegarLoop]: Abstraction has 17627 states and 75982 transitions. [2021-06-05 15:26:33,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 17627 states and 75982 transitions. [2021-06-05 15:26:33,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 15:26:33,083 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:33,084 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:26:33,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-06-05 15:26:33,289 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:33,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:33,289 INFO L82 PathProgramCache]: Analyzing trace with hash 953180244, now seen corresponding path program 21 times [2021-06-05 15:26:33,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:33,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085130032] [2021-06-05 15:26:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-05 15:26:33,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:33,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085130032] [2021-06-05 15:26:33,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085130032] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:33,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984374779] [2021-06-05 15:26:33,334 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:26:33,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-06-05 15:26:33,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:33,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-05 15:26:33,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:33,507 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-06-05 15:26:33,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2021-06-05 15:26:33,511 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 15:26:33,533 INFO L628 ElimStorePlain]: treesize reduction 15, result has 67.4 percent of original size [2021-06-05 15:26:33,542 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-05 15:26:33,542 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:28 [2021-06-05 15:26:33,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:33,688 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-06-05 15:26:33,689 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2021-06-05 15:26:33,694 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 15:26:33,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:33,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2021-06-05 15:26:33,825 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:33,881 INFO L628 ElimStorePlain]: treesize reduction 15, result has 79.5 percent of original size [2021-06-05 15:26:33,893 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2021-06-05 15:26:33,893 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:50 [2021-06-05 15:26:34,011 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-06-05 15:26:34,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2021-06-05 15:26:34,015 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 15:26:34,039 INFO L628 ElimStorePlain]: treesize reduction 15, result has 69.4 percent of original size [2021-06-05 15:26:34,047 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-05 15:26:34,047 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:34 [2021-06-05 15:26:34,363 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:34,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2021-06-05 15:26:34,375 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 15:26:34,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:34,394 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-05 15:26:34,395 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:31 [2021-06-05 15:26:34,493 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-05 15:26:34,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984374779] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:34,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:34,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 21 [2021-06-05 15:26:34,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058716272] [2021-06-05 15:26:34,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-05 15:26:34,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:34,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-05 15:26:34,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2021-06-05 15:26:34,495 INFO L87 Difference]: Start difference. First operand 17627 states and 75982 transitions. Second operand has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:38,348 INFO L93 Difference]: Finished difference Result 45459 states and 178326 transitions. [2021-06-05 15:26:38,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-06-05 15:26:38,349 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-06-05 15:26:38,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:38,454 INFO L225 Difference]: With dead ends: 45459 [2021-06-05 15:26:38,455 INFO L226 Difference]: Without dead ends: 44947 [2021-06-05 15:26:38,456 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 86 SyntacticMatches, 14 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2667 ImplicationChecksByTransitivity, 2736.8ms TimeCoverageRelationStatistics Valid=1243, Invalid=7129, Unknown=0, NotChecked=0, Total=8372 [2021-06-05 15:26:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44947 states. [2021-06-05 15:26:39,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44947 to 20763. [2021-06-05 15:26:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20763 states, 20762 states have (on average 4.309266929968211) internal successors, (89469), 20762 states have internal predecessors, (89469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:39,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20763 states to 20763 states and 89469 transitions. [2021-06-05 15:26:39,119 INFO L78 Accepts]: Start accepts. Automaton has 20763 states and 89469 transitions. Word has length 45 [2021-06-05 15:26:39,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:39,119 INFO L482 AbstractCegarLoop]: Abstraction has 20763 states and 89469 transitions. [2021-06-05 15:26:39,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:39,119 INFO L276 IsEmpty]: Start isEmpty. Operand 20763 states and 89469 transitions. [2021-06-05 15:26:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-05 15:26:39,154 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:39,154 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:26:39,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-06-05 15:26:39,357 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:39,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:39,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1505718650, now seen corresponding path program 22 times [2021-06-05 15:26:39,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:39,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627768103] [2021-06-05 15:26:39,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:39,720 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-06-05 15:26:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-05 15:26:39,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:39,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627768103] [2021-06-05 15:26:39,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627768103] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:39,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102779092] [2021-06-05 15:26:39,793 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 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 [2021-06-05 15:26:39,825 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 15:26:39,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:39,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-05 15:26:39,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:39,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:39,997 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2021-06-05 15:26:39,999 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:40,002 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:40,003 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:40,003 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:7 [2021-06-05 15:26:40,119 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:40,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2021-06-05 15:26:40,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 15:26:40,127 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-06-05 15:26:40,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 10 [2021-06-05 15:26:40,128 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:40,133 INFO L628 ElimStorePlain]: treesize reduction 12, result has 20.0 percent of original size [2021-06-05 15:26:40,133 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:40,133 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:3 [2021-06-05 15:26:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 15:26:40,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102779092] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:40,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:26:40,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 23 [2021-06-05 15:26:40,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782935456] [2021-06-05 15:26:40,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-05 15:26:40,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:26:40,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-05 15:26:40,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-06-05 15:26:40,157 INFO L87 Difference]: Start difference. First operand 20763 states and 89469 transitions. Second operand has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:41,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:26:41,363 INFO L93 Difference]: Finished difference Result 37037 states and 154685 transitions. [2021-06-05 15:26:41,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 15:26:41,363 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 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 47 [2021-06-05 15:26:41,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:26:41,413 INFO L225 Difference]: With dead ends: 37037 [2021-06-05 15:26:41,413 INFO L226 Difference]: Without dead ends: 20247 [2021-06-05 15:26:41,413 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 882.3ms TimeCoverageRelationStatistics Valid=323, Invalid=1839, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 15:26:41,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20247 states. [2021-06-05 15:26:41,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20247 to 20145. [2021-06-05 15:26:41,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20145 states, 20144 states have (on average 4.329527402700556) internal successors, (87214), 20144 states have internal predecessors, (87214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:41,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20145 states to 20145 states and 87214 transitions. [2021-06-05 15:26:41,915 INFO L78 Accepts]: Start accepts. Automaton has 20145 states and 87214 transitions. Word has length 47 [2021-06-05 15:26:41,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:26:41,915 INFO L482 AbstractCegarLoop]: Abstraction has 20145 states and 87214 transitions. [2021-06-05 15:26:41,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:26:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 20145 states and 87214 transitions. [2021-06-05 15:26:41,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-05 15:26:41,951 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:26:41,952 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:26:42,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2021-06-05 15:26:42,160 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:26:42,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:26:42,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1052185102, now seen corresponding path program 23 times [2021-06-05 15:26:42,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:26:42,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739316575] [2021-06-05 15:26:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:26:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:26:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-05 15:26:42,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:26:42,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739316575] [2021-06-05 15:26:42,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739316575] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:26:42,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450212467] [2021-06-05 15:26:42,886 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 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 [2021-06-05 15:26:42,931 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-06-05 15:26:42,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:26:42,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-05 15:26:42,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:26:42,971 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 0 case distinctions, treesize of input 10 treesize of output 7 [2021-06-05 15:26:42,972 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:42,976 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:26:42,977 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:26:42,977 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:10 [2021-06-05 15:26:43,218 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 15:26:44,175 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-06-05 15:26:44,855 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-06-05 15:26:45,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,346 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 15:26:45,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 64 [2021-06-05 15:26:45,357 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:45,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,462 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 15:26:45,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 64 [2021-06-05 15:26:45,471 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:45,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,581 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 15:26:45,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 64 [2021-06-05 15:26:45,590 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:45,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,720 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 15:26:45,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 35 treesize of output 64 [2021-06-05 15:26:45,728 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:45,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,824 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 15:26:45,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 33 treesize of output 64 [2021-06-05 15:26:45,837 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:45,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:45,968 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 15:26:45,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 64 [2021-06-05 15:26:45,978 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:45,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:46,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:46,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:46,092 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 15:26:46,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 33 treesize of output 64 [2021-06-05 15:26:46,097 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:46,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:46,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:46,198 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 15:26:46,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 35 treesize of output 64 [2021-06-05 15:26:46,204 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:47,161 WARN L205 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 247 [2021-06-05 15:26:47,162 INFO L628 ElimStorePlain]: treesize reduction 216, result has 79.3 percent of original size [2021-06-05 15:26:48,107 INFO L550 ElimStorePlain]: Start of recursive call 1: 25 dim-0 vars, 1 dim-1 vars, End of recursive call: 25 dim-0 vars, and 8 xjuncts. [2021-06-05 15:26:48,108 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 26 variables, input treesize:517, output treesize:1013 [2021-06-05 15:26:49,647 WARN L205 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2021-06-05 15:26:51,466 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 200 [2021-06-05 15:26:51,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:51,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,782 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:51,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-06-05 15:26:51,794 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:51,818 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:51,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,824 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:51,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2021-06-05 15:26:51,838 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:51,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:51,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,877 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:51,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2021-06-05 15:26:51,889 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:51,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:51,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,922 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:51,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2021-06-05 15:26:51,937 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:51,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:51,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,972 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:51,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:51,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2021-06-05 15:26:51,984 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:52,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,019 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:52,029 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:52,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2021-06-05 15:26:52,034 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:52,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:52,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,090 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:52,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-06-05 15:26:52,099 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:52,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:26:52,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:26:52,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2021-06-05 15:26:52,122 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-05 15:26:52,627 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 179 [2021-06-05 15:26:52,627 INFO L628 ElimStorePlain]: treesize reduction 12, result has 97.5 percent of original size [2021-06-05 15:26:52,685 INFO L550 ElimStorePlain]: Start of recursive call 1: 25 dim-0 vars, 1 dim-1 vars, End of recursive call: 24 dim-0 vars, and 8 xjuncts. [2021-06-05 15:26:52,686 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 26 variables, input treesize:553, output treesize:423 [2021-06-05 15:26:55,343 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-05 15:26:55,891 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-06-05 15:26:57,149 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 191 [2021-06-05 15:26:58,865 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 198 DAG size of output: 188 [2021-06-05 15:27:00,180 INFO L446 ElimStorePlain]: Different costs {15=[A, v_prenex_93, v_prenex_91, v_prenex_89], 20=[v_prenex_82, v_prenex_87, v_prenex_85, v_prenex_95]} [2021-06-05 15:27:00,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,267 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-06-05 15:27:00,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 51 [2021-06-05 15:27:00,278 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:27:00,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:00,335 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:27:00,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 55 [2021-06-05 15:27:00,353 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-05 15:27:01,392 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 258 DAG size of output: 255 [2021-06-05 15:27:01,393 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.5 percent of original size [2021-06-05 15:27:01,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,443 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:27:01,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 57 [2021-06-05 15:27:01,463 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-06-05 15:27:01,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:01,515 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-06-05 15:27:01,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 37 [2021-06-05 15:27:01,519 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-05 15:27:02,461 WARN L205 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 249 [2021-06-05 15:27:02,462 INFO L628 ElimStorePlain]: treesize reduction 22, result has 97.5 percent of original size [2021-06-05 15:27:02,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,527 INFO L354 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-06-05 15:27:02,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 47 [2021-06-05 15:27:02,536 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-05 15:27:02,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:02,577 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:27:02,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 55 [2021-06-05 15:27:02,619 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-06-05 15:27:03,488 WARN L205 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 241 [2021-06-05 15:27:03,489 INFO L628 ElimStorePlain]: treesize reduction 9, result has 98.9 percent of original size [2021-06-05 15:27:03,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,554 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:27:03,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 55 [2021-06-05 15:27:03,578 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-06-05 15:27:03,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:03,619 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-06-05 15:27:03,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 39 [2021-06-05 15:27:03,624 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-05 15:27:04,401 WARN L205 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 221 [2021-06-05 15:27:04,401 INFO L628 ElimStorePlain]: treesize reduction 44, result has 94.2 percent of original size [2021-06-05 15:27:04,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,417 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:04,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,425 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:04,449 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:27:04,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 41 treesize of output 55 [2021-06-05 15:27:04,471 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2021-06-05 15:27:04,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:04,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:04,536 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-06-05 15:27:04,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 39 [2021-06-05 15:27:04,540 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-05 15:27:05,229 WARN L205 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 214 [2021-06-05 15:27:05,230 INFO L628 ElimStorePlain]: treesize reduction 36, result has 94.8 percent of original size [2021-06-05 15:27:05,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:05,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:05,285 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:27:05,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 41 treesize of output 55 [2021-06-05 15:27:05,339 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2021-06-05 15:27:05,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:05,361 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:05,384 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-06-05 15:27:05,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 35 [2021-06-05 15:27:05,385 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-05 15:27:06,017 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 206 [2021-06-05 15:27:06,018 INFO L628 ElimStorePlain]: treesize reduction 41, result has 93.7 percent of original size [2021-06-05 15:27:06,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:06,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,035 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:06,062 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:27:06,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 41 treesize of output 57 [2021-06-05 15:27:06,095 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 3 xjuncts. [2021-06-05 15:27:06,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,110 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:06,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:06,142 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-06-05 15:27:06,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 41 [2021-06-05 15:27:06,147 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-05 15:27:07,106 WARN L205 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 196 [2021-06-05 15:27:07,106 INFO L628 ElimStorePlain]: treesize reduction 62, result has 89.9 percent of original size [2021-06-05 15:27:07,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,124 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:07,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:07,167 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-06-05 15:27:07,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 51 [2021-06-05 15:27:07,175 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-05 15:27:07,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:27:07,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 15:27:07,215 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:27:07,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 55 [2021-06-05 15:27:07,236 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2021-06-05 15:27:07,717 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2021-06-05 15:27:07,718 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.0 percent of original size [2021-06-05 15:27:07,753 INFO L550 ElimStorePlain]: Start of recursive call 1: 40 dim-0 vars, 8 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-06-05 15:27:07,754 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 48 variables, input treesize:973, output treesize:12 [2021-06-05 15:27:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-05 15:27:07,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450212467] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:27:07,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 15:27:07,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 27 [2021-06-05 15:27:07,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473938104] [2021-06-05 15:27:07,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 15:27:07,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 15:27:07,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 15:27:07,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=633, Unknown=1, NotChecked=0, Total=756 [2021-06-05 15:27:07,767 INFO L87 Difference]: Start difference. First operand 20145 states and 87214 transitions. Second operand has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:27:23,923 WARN L205 SmtUtils]: Spent 4.35 s on a formula simplification. DAG size of input: 212 DAG size of output: 204 [2021-06-05 15:27:34,878 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2021-06-05 15:27:38,923 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2021-06-05 15:27:57,989 WARN L205 SmtUtils]: Spent 18.42 s on a formula simplification. DAG size of input: 393 DAG size of output: 385 [2021-06-05 15:28:05,956 WARN L205 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 189 DAG size of output: 181 [2021-06-05 15:28:07,287 WARN L205 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2021-06-05 15:28:14,296 WARN L205 SmtUtils]: Spent 6.63 s on a formula simplification. DAG size of input: 192 DAG size of output: 183 [2021-06-05 15:28:17,446 WARN L205 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 360 DAG size of output: 360 [2021-06-05 15:28:25,273 WARN L205 SmtUtils]: Spent 5.95 s on a formula simplification. DAG size of input: 214 DAG size of output: 206 [2021-06-05 15:28:35,750 WARN L205 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 193 DAG size of output: 184 [2021-06-05 15:28:38,069 WARN L205 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 361 DAG size of output: 361 [2021-06-05 15:28:46,613 WARN L205 SmtUtils]: Spent 5.99 s on a formula simplification. DAG size of input: 215 DAG size of output: 207 [2021-06-05 15:28:54,048 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2021-06-05 15:28:55,781 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-05 15:28:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 15:28:56,422 INFO L93 Difference]: Finished difference Result 37534 states and 159289 transitions. [2021-06-05 15:28:56,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-05 15:28:56,422 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-06-05 15:28:56,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 15:28:56,474 INFO L225 Difference]: With dead ends: 37534 [2021-06-05 15:28:56,474 INFO L226 Difference]: Without dead ends: 20097 [2021-06-05 15:28:56,475 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 33 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 75294.4ms TimeCoverageRelationStatistics Valid=449, Invalid=2302, Unknown=5, NotChecked=0, Total=2756 [2021-06-05 15:28:56,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20097 states. [2021-06-05 15:28:56,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20097 to 20097. [2021-06-05 15:28:56,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20097 states, 20096 states have (on average 4.333897292993631) internal successors, (87094), 20096 states have internal predecessors, (87094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:28:56,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20097 states to 20097 states and 87094 transitions. [2021-06-05 15:28:56,882 INFO L78 Accepts]: Start accepts. Automaton has 20097 states and 87094 transitions. Word has length 47 [2021-06-05 15:28:56,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 15:28:56,883 INFO L482 AbstractCegarLoop]: Abstraction has 20097 states and 87094 transitions. [2021-06-05 15:28:56,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 15:28:56,883 INFO L276 IsEmpty]: Start isEmpty. Operand 20097 states and 87094 transitions. [2021-06-05 15:28:56,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-05 15:28:56,918 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 15:28:56,918 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 15:28:57,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 15:28:57,121 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 15:28:57,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 15:28:57,121 INFO L82 PathProgramCache]: Analyzing trace with hash 790962414, now seen corresponding path program 24 times [2021-06-05 15:28:57,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 15:28:57,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750040467] [2021-06-05 15:28:57,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 15:28:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 15:28:57,621 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 3 [2021-06-05 15:28:57,656 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 32 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-06-05 15:28:57,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 15:28:57,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750040467] [2021-06-05 15:28:57,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750040467] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 15:28:57,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755882523] [2021-06-05 15:28:57,657 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 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 [2021-06-05 15:28:57,702 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-06-05 15:28:57,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 15:28:57,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-05 15:28:57,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 15:28:57,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 7 [2021-06-05 15:28:57,722 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:28:57,727 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 15:28:57,728 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 15:28:57,728 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:10 [2021-06-05 15:28:58,405 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-06-05 15:29:01,502 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification that was a NOOP. DAG size: 159 [2021-06-05 15:29:04,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,904 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:29:04,904 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:29:04,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 76 [2021-06-05 15:29:04,921 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:04,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:04,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,157 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:29:05,158 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:29:05,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 76 [2021-06-05 15:29:05,178 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:05,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,384 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:29:05,384 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:29:05,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 76 [2021-06-05 15:29:05,390 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:05,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,613 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:29:05,613 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:29:05,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 76 [2021-06-05 15:29:05,627 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:05,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,853 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:29:05,853 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:29:05,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 76 [2021-06-05 15:29:05,859 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:05,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:05,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,119 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:29:06,119 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:29:06,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 76 [2021-06-05 15:29:06,130 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:06,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,423 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:29:06,423 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:29:06,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 76 [2021-06-05 15:29:06,430 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:06,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:06,667 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:29:06,667 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:29:06,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 76 [2021-06-05 15:29:06,675 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:10,140 WARN L205 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 365 DAG size of output: 273 [2021-06-05 15:29:10,140 INFO L628 ElimStorePlain]: treesize reduction 591, result has 63.0 percent of original size [2021-06-05 15:29:11,082 INFO L550 ElimStorePlain]: Start of recursive call 1: 25 dim-0 vars, 1 dim-1 vars, End of recursive call: 24 dim-0 vars, and 8 xjuncts. [2021-06-05 15:29:11,082 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 26 variables, input treesize:483, output treesize:1029 [2021-06-05 15:29:14,969 WARN L205 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 329 [2021-06-05 15:29:23,849 WARN L205 SmtUtils]: Spent 4.35 s on a formula simplification. DAG size of input: 318 DAG size of output: 247 [2021-06-05 15:29:24,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,424 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-06-05 15:29:24,785 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:24,786 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:24,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-06-05 15:29:24,800 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:24,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:24,942 INFO L244 Elim1Store]: Index analysis took 111 ms [2021-06-05 15:29:25,303 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:25,304 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:25,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-06-05 15:29:25,320 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:25,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,479 INFO L244 Elim1Store]: Index analysis took 121 ms [2021-06-05 15:29:25,843 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:25,843 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:25,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 90 [2021-06-05 15:29:25,875 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:25,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:26,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:26,035 INFO L244 Elim1Store]: Index analysis took 120 ms [2021-06-05 15:29:26,446 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:26,446 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:26,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 90 [2021-06-05 15:29:26,458 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:26,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:26,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:26,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:26,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:26,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:26,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:26,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:26,633 INFO L244 Elim1Store]: Index analysis took 139 ms [2021-06-05 15:29:27,075 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:27,076 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:27,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:29:27,098 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:27,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,288 INFO L244 Elim1Store]: Index analysis took 140 ms [2021-06-05 15:29:27,733 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:27,733 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:27,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 94 [2021-06-05 15:29:27,745 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:27,916 INFO L244 Elim1Store]: Index analysis took 131 ms [2021-06-05 15:29:28,371 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:28,371 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:28,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:29:28,393 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:28,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:28,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:28,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:28,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:28,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:28,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:28,590 INFO L244 Elim1Store]: Index analysis took 156 ms [2021-06-05 15:29:29,022 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:29,023 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:29,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-06-05 15:29:29,055 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:29,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,234 INFO L244 Elim1Store]: Index analysis took 135 ms [2021-06-05 15:29:29,719 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:29,719 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:29,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 90 [2021-06-05 15:29:29,754 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:29,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:29,939 INFO L244 Elim1Store]: Index analysis took 132 ms [2021-06-05 15:29:30,439 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:30,439 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:30,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 33 treesize of output 88 [2021-06-05 15:29:30,465 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:30,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:30,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:30,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:30,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:30,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:30,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:30,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:30,658 INFO L244 Elim1Store]: Index analysis took 146 ms [2021-06-05 15:29:31,123 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:31,124 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:31,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 33 treesize of output 90 [2021-06-05 15:29:31,131 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:31,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:31,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:31,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:31,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:31,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:31,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:31,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:31,329 INFO L244 Elim1Store]: Index analysis took 146 ms [2021-06-05 15:29:31,894 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:31,894 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:31,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:29:31,930 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:31,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:31,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:31,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,123 INFO L244 Elim1Store]: Index analysis took 142 ms [2021-06-05 15:29:32,652 WARN L205 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:32,652 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:32,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:29:32,678 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:32,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:32,875 INFO L244 Elim1Store]: Index analysis took 142 ms [2021-06-05 15:29:33,468 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:33,469 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:33,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-06-05 15:29:33,484 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:33,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:33,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:33,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:33,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:33,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:33,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:33,682 INFO L244 Elim1Store]: Index analysis took 143 ms [2021-06-05 15:29:34,229 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:34,229 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:34,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:29:34,266 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:34,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:34,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:34,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:34,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:34,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:34,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:34,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:34,477 INFO L244 Elim1Store]: Index analysis took 154 ms [2021-06-05 15:29:35,040 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:35,041 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:35,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 96 [2021-06-05 15:29:35,068 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2021-06-05 15:29:35,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:35,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:35,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:35,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:35,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:35,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:29:35,828 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:29:35,828 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:29:35,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 92 [2021-06-05 15:29:35,837 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-05 15:29:58,858 WARN L205 SmtUtils]: Spent 23.02 s on a formula simplification. DAG size of input: 890 DAG size of output: 655 [2021-06-05 15:29:58,860 INFO L628 ElimStorePlain]: treesize reduction 1954, result has 60.5 percent of original size [2021-06-05 15:30:01,467 INFO L550 ElimStorePlain]: Start of recursive call 1: 52 dim-0 vars, 1 dim-1 vars, End of recursive call: 62 dim-0 vars, and 17 xjuncts. [2021-06-05 15:30:01,467 INFO L247 ElimStorePlain]: Needed 18 recursive calls to eliminate 53 variables, input treesize:1127, output treesize:3152 [2021-06-05 15:30:37,276 WARN L205 SmtUtils]: Spent 22.94 s on a formula simplification that was a NOOP. DAG size: 854 [2021-06-05 15:30:39,925 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 908 DAG size of output: 816 [2021-06-05 15:31:27,657 WARN L205 SmtUtils]: Spent 33.15 s on a formula simplification. DAG size of input: 1063 DAG size of output: 617 [2021-06-05 15:31:28,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:28,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:28,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:28,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:28,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:28,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:29,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:29,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:29,116 INFO L244 Elim1Store]: Index analysis took 156 ms [2021-06-05 15:31:29,456 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:31:29,456 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:31:29,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 68 [2021-06-05 15:31:29,460 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:29,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:29,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:29,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:29,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:29,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:29,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:29,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:29,714 INFO L244 Elim1Store]: Index analysis took 173 ms [2021-06-05 15:31:30,294 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:30,294 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:30,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-06-05 15:31:30,317 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:30,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:30,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:30,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:30,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:30,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:30,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:30,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:30,578 INFO L244 Elim1Store]: Index analysis took 182 ms [2021-06-05 15:31:31,193 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:31,193 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:31,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:31:31,218 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:31,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,496 INFO L244 Elim1Store]: Index analysis took 195 ms [2021-06-05 15:31:31,834 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:31:31,834 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:31:31,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 66 [2021-06-05 15:31:31,839 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:31,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:31,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:32,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:32,122 INFO L244 Elim1Store]: Index analysis took 199 ms [2021-06-05 15:31:32,732 WARN L205 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:32,732 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:32,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:31:32,778 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:32,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:32,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:32,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:32,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:32,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:32,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:32,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:33,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:33,083 INFO L244 Elim1Store]: Index analysis took 224 ms [2021-06-05 15:31:33,452 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:31:33,452 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:31:33,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 66 [2021-06-05 15:31:33,458 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:33,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:33,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:33,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:33,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:33,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:33,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:33,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:33,791 INFO L244 Elim1Store]: Index analysis took 230 ms [2021-06-05 15:31:34,394 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:34,394 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:34,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 96 [2021-06-05 15:31:34,416 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:34,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:34,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:34,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:34,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:34,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:34,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:34,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:34,730 INFO L244 Elim1Store]: Index analysis took 227 ms [2021-06-05 15:31:35,375 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:35,375 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:35,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 33 treesize of output 90 [2021-06-05 15:31:35,381 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:35,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:35,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:35,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:35,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:35,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:35,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:35,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:35,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:35,680 INFO L244 Elim1Store]: Index analysis took 204 ms [2021-06-05 15:31:36,050 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:31:36,050 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:31:36,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 68 [2021-06-05 15:31:36,056 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:36,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,341 INFO L244 Elim1Store]: Index analysis took 195 ms [2021-06-05 15:31:36,717 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:31:36,717 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:31:36,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 70 [2021-06-05 15:31:36,722 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:36,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:36,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:37,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:37,020 INFO L244 Elim1Store]: Index analysis took 204 ms [2021-06-05 15:31:37,770 WARN L205 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:37,770 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:37,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:31:37,792 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:37,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:37,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:37,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:37,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:37,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:38,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:38,139 INFO L244 Elim1Store]: Index analysis took 243 ms [2021-06-05 15:31:38,850 WARN L205 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:38,851 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:38,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:31:38,865 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:38,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:38,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:38,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:39,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:39,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:39,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:39,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:39,196 INFO L244 Elim1Store]: Index analysis took 231 ms [2021-06-05 15:31:39,938 WARN L205 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:39,938 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:39,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-06-05 15:31:39,952 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:40,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:40,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:40,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:40,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:40,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:40,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:40,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:40,283 INFO L244 Elim1Store]: Index analysis took 221 ms [2021-06-05 15:31:41,064 WARN L205 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:41,064 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:41,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 90 [2021-06-05 15:31:41,073 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:41,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,389 INFO L244 Elim1Store]: Index analysis took 212 ms [2021-06-05 15:31:41,839 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:31:41,839 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:31:41,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 66 [2021-06-05 15:31:41,847 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:41,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:41,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:42,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:42,179 INFO L244 Elim1Store]: Index analysis took 221 ms [2021-06-05 15:31:42,609 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:31:42,609 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:31:42,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 68 [2021-06-05 15:31:42,617 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:42,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:42,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:42,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:42,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:42,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:42,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:42,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:42,967 INFO L244 Elim1Store]: Index analysis took 233 ms [2021-06-05 15:31:43,848 WARN L205 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:43,848 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:43,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:31:43,872 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:43,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:43,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:44,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:44,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:44,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:44,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:44,213 INFO L244 Elim1Store]: Index analysis took 227 ms [2021-06-05 15:31:45,029 WARN L205 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:45,029 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:45,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:31:45,047 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:45,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:45,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:45,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:45,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:45,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:45,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:45,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:45,418 INFO L244 Elim1Store]: Index analysis took 257 ms [2021-06-05 15:31:46,339 WARN L205 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:46,340 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:46,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:31:46,358 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:46,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:46,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:46,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:46,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:46,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:46,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:46,724 INFO L244 Elim1Store]: Index analysis took 252 ms [2021-06-05 15:31:47,598 WARN L205 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:47,599 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:47,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:31:47,623 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:47,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:47,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:47,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:47,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:47,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:47,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:47,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:47,995 INFO L244 Elim1Store]: Index analysis took 256 ms [2021-06-05 15:31:48,795 WARN L205 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:48,796 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:48,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 94 [2021-06-05 15:31:48,805 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:48,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:48,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:48,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:48,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:48,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:48,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:49,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:49,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:49,169 INFO L244 Elim1Store]: Index analysis took 246 ms [2021-06-05 15:31:49,607 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:31:49,608 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:31:49,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 70 [2021-06-05 15:31:49,612 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:49,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:49,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:49,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:49,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:49,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:49,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:49,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:50,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:50,061 INFO L244 Elim1Store]: Index analysis took 323 ms [2021-06-05 15:31:50,725 WARN L205 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:31:50,725 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:31:50,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 80 [2021-06-05 15:31:50,732 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:50,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:50,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:50,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:50,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:50,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:50,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:51,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:51,123 INFO L244 Elim1Store]: Index analysis took 259 ms [2021-06-05 15:31:52,089 WARN L205 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:52,089 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:52,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 96 [2021-06-05 15:31:52,101 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:52,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:52,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:52,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:52,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:52,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:52,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:52,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:52,447 INFO L244 Elim1Store]: Index analysis took 219 ms [2021-06-05 15:31:52,903 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:31:52,903 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:31:52,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 66 [2021-06-05 15:31:52,910 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:53,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:53,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:53,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:53,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:53,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:53,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:53,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:53,272 INFO L244 Elim1Store]: Index analysis took 230 ms [2021-06-05 15:31:54,274 WARN L205 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:54,275 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:54,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-06-05 15:31:54,298 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-05 15:31:54,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:54,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:54,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:54,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:54,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:54,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:54,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:54,682 INFO L244 Elim1Store]: Index analysis took 247 ms [2021-06-05 15:31:55,652 WARN L205 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:55,652 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:55,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-06-05 15:31:55,666 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:55,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:55,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:55,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:55,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:55,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:55,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:56,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:56,066 INFO L244 Elim1Store]: Index analysis took 263 ms [2021-06-05 15:31:56,984 WARN L205 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:56,984 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:56,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-06-05 15:31:57,002 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:57,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:57,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:57,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:57,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:57,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:57,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:57,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:57,532 INFO L244 Elim1Store]: Index analysis took 382 ms [2021-06-05 15:31:58,423 WARN L205 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:58,423 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:58,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 90 [2021-06-05 15:31:58,450 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2021-06-05 15:31:58,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:58,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:58,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:58,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:58,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:58,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:58,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:31:58,868 INFO L244 Elim1Store]: Index analysis took 273 ms [2021-06-05 15:31:59,990 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:31:59,990 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:31:59,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 90 [2021-06-05 15:32:00,023 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 2 xjuncts. [2021-06-05 15:32:00,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:00,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:00,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:00,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:00,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:00,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:00,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:00,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:00,451 INFO L244 Elim1Store]: Index analysis took 281 ms [2021-06-05 15:32:01,257 WARN L205 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:32:01,258 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:32:01,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 80 [2021-06-05 15:32:01,265 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:01,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:01,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:01,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:01,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:01,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:01,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:01,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:01,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:01,694 INFO L244 Elim1Store]: Index analysis took 270 ms [2021-06-05 15:32:02,191 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:32:02,191 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:32:02,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 70 [2021-06-05 15:32:02,199 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:02,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:02,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:02,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:02,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:02,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:02,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:02,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:02,702 INFO L244 Elim1Store]: Index analysis took 340 ms [2021-06-05 15:32:03,898 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:03,898 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:03,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:32:03,917 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2021-06-05 15:32:04,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:04,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:04,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:04,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:04,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:04,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:04,349 INFO L244 Elim1Store]: Index analysis took 274 ms [2021-06-05 15:32:05,436 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:05,436 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:05,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-06-05 15:32:05,448 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2021-06-05 15:32:05,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:05,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:05,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:05,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:05,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:05,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:05,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:05,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:05,882 INFO L244 Elim1Store]: Index analysis took 273 ms [2021-06-05 15:32:06,480 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:32:06,480 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:32:06,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 66 [2021-06-05 15:32:06,491 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:06,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:06,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:06,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:06,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:06,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:06,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:06,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:06,933 INFO L244 Elim1Store]: Index analysis took 274 ms [2021-06-05 15:32:07,499 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:32:07,500 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:32:07,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 70 [2021-06-05 15:32:07,506 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:07,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:07,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:07,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:07,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:07,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:07,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:07,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:07,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:08,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:08,004 INFO L244 Elim1Store]: Index analysis took 330 ms [2021-06-05 15:32:08,527 WARN L205 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:32:08,528 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:32:08,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 68 [2021-06-05 15:32:08,531 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:08,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:08,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:08,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:08,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:08,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:08,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:08,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:08,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:08,995 INFO L244 Elim1Store]: Index analysis took 295 ms [2021-06-05 15:32:09,560 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:32:09,561 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:32:09,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 68 [2021-06-05 15:32:09,565 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:09,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:09,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:09,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:09,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:09,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:09,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:10,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:10,030 INFO L244 Elim1Store]: Index analysis took 288 ms [2021-06-05 15:32:11,650 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:11,650 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:11,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-06-05 15:32:11,670 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 2 xjuncts. [2021-06-05 15:32:11,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:11,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:11,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:11,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:11,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:11,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:12,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:12,139 INFO L244 Elim1Store]: Index analysis took 299 ms [2021-06-05 15:32:12,891 WARN L205 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:32:12,891 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:32:12,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 80 [2021-06-05 15:32:12,902 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:13,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:13,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:13,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:13,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:13,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:13,434 INFO L244 Elim1Store]: Index analysis took 303 ms [2021-06-05 15:32:14,338 WARN L205 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:14,338 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:14,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-06-05 15:32:14,367 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 2 xjuncts. [2021-06-05 15:32:14,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:14,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:14,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:14,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:14,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:14,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:14,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:14,796 INFO L244 Elim1Store]: Index analysis took 305 ms [2021-06-05 15:32:16,023 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:16,023 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:16,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 33 treesize of output 88 [2021-06-05 15:32:16,033 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:16,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:16,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:16,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:16,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:16,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:16,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:16,464 INFO L244 Elim1Store]: Index analysis took 311 ms [2021-06-05 15:32:17,790 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:17,790 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:17,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 92 [2021-06-05 15:32:17,798 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:17,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:17,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:17,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:17,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:17,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:17,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:17,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:18,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:18,237 INFO L244 Elim1Store]: Index analysis took 307 ms [2021-06-05 15:32:18,772 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:32:18,772 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:32:18,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 70 [2021-06-05 15:32:18,776 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:18,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:18,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:19,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:19,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:19,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:19,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:19,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:19,286 INFO L244 Elim1Store]: Index analysis took 375 ms [2021-06-05 15:32:20,265 WARN L205 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:20,265 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:20,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 94 [2021-06-05 15:32:20,277 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:20,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:20,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:20,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:20,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:20,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:20,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:20,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:20,728 INFO L244 Elim1Store]: Index analysis took 316 ms [2021-06-05 15:32:21,935 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:21,936 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:21,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-06-05 15:32:21,952 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:22,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:22,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:22,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:22,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:22,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:22,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:22,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:22,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:22,435 INFO L244 Elim1Store]: Index analysis took 324 ms [2021-06-05 15:32:22,945 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:32:22,945 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:32:22,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 70 [2021-06-05 15:32:22,949 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:23,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:23,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:23,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:23,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:23,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:23,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:23,408 INFO L244 Elim1Store]: Index analysis took 319 ms [2021-06-05 15:32:25,317 WARN L205 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:25,318 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:25,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 96 [2021-06-05 15:32:25,339 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 2 xjuncts. [2021-06-05 15:32:25,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:25,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:25,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:25,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:25,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:25,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:25,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:25,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:25,804 INFO L244 Elim1Store]: Index analysis took 315 ms [2021-06-05 15:32:26,836 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 15:32:26,836 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 15:32:26,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 80 [2021-06-05 15:32:26,847 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:27,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:27,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:27,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:27,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:27,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:27,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:27,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:27,291 INFO L244 Elim1Store]: Index analysis took 291 ms [2021-06-05 15:32:28,585 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:28,585 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:28,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-06-05 15:32:28,595 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:28,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:28,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:28,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:28,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:28,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:28,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:28,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:29,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:29,152 INFO L244 Elim1Store]: Index analysis took 403 ms [2021-06-05 15:32:29,784 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 15:32:29,784 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 15:32:29,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 72 [2021-06-05 15:32:29,790 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-06-05 15:32:29,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:29,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:29,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:29,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:30,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:30,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 15:32:30,071 INFO L244 Elim1Store]: Index analysis took 124 ms [2021-06-05 15:32:31,310 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 15:32:31,311 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 15:32:31,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-06-05 15:32:31,320 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-06-05 15:35:14,759 WARN L205 SmtUtils]: Spent 2.72 m on a formula simplification. DAG size of input: 2387 DAG size of output: 1837 [2021-06-05 15:35:14,762 INFO L628 ElimStorePlain]: treesize reduction 4894, result has 61.5 percent of original size [2021-06-05 15:35:21,133 INFO L550 ElimStorePlain]: Start of recursive call 1: 157 dim-0 vars, 1 dim-1 vars, End of recursive call: 184 dim-0 vars, and 52 xjuncts. [2021-06-05 15:35:21,135 INFO L247 ElimStorePlain]: Needed 53 recursive calls to eliminate 158 variables, input treesize:3564, output treesize:8749 [2021-06-05 15:35:21,260 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 2343 DAG size of output: 2343 [2021-06-05 15:35:26,139 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 2446 DAG size of output: 2446 [2021-06-05 15:36:14,890 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-05 15:36:14,891 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-05 15:36:15,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable834 [2021-06-05 15:36:15,093 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 53 more [2021-06-05 15:36:15,102 INFO L168 Benchmark]: Toolchain (without parser) took 606666.13 ms. Allocated memory was 392.2 MB in the beginning and 8.0 GB in the end (delta: 7.6 GB). Free memory was 371.8 MB in the beginning and 6.5 GB in the end (delta: -6.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. [2021-06-05 15:36:15,102 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 392.2 MB. Free memory was 373.0 MB in the beginning and 373.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 15:36:15,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.91 ms. Allocated memory is still 392.2 MB. Free memory was 371.8 MB in the beginning and 370.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 15:36:15,102 INFO L168 Benchmark]: Boogie Preprocessor took 20.91 ms. Allocated memory is still 392.2 MB. Free memory was 370.3 MB in the beginning and 369.3 MB in the end (delta: 980.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 15:36:15,102 INFO L168 Benchmark]: RCFGBuilder took 254.48 ms. Allocated memory is still 392.2 MB. Free memory was 369.2 MB in the beginning and 355.5 MB in the end (delta: 13.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-05 15:36:15,102 INFO L168 Benchmark]: TraceAbstraction took 606362.42 ms. Allocated memory was 392.2 MB in the beginning and 8.0 GB in the end (delta: 7.6 GB). Free memory was 355.0 MB in the beginning and 6.5 GB in the end (delta: -6.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. [2021-06-05 15:36:15,103 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 0.12 ms. Allocated memory is still 392.2 MB. Free memory was 373.0 MB in the beginning and 373.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.91 ms. Allocated memory is still 392.2 MB. Free memory was 371.8 MB in the beginning and 370.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.91 ms. Allocated memory is still 392.2 MB. Free memory was 370.3 MB in the beginning and 369.3 MB in the end (delta: 980.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 254.48 ms. Allocated memory is still 392.2 MB. Free memory was 369.2 MB in the beginning and 355.5 MB in the end (delta: 13.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 606362.42 ms. Allocated memory was 392.2 MB in the beginning and 8.0 GB in the end (delta: 7.6 GB). Free memory was 355.0 MB in the beginning and 6.5 GB in the end (delta: -6.1 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...