/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 22:52:13,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 22:52:13,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 22:52:13,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 22:52:13,547 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 22:52:13,573 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 22:52:13,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 22:52:13,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 22:52:13,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 22:52:13,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 22:52:13,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 22:52:13,575 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 22:52:13,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 22:52:13,576 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 22:52:13,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 22:52:13,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 22:52:13,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 22:52:13,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 22:52:13,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 22:52:13,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 22:52:13,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 22:52:13,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 22:52:13,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 22:52:13,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 22:52:13,578 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 22:52:13,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 22:52:13,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 22:52:13,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 22:52:13,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 22:52:13,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 22:52:13,828 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 22:52:13,834 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 22:52:13,834 INFO L432 ainManager$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 22:52:13,834 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 22:52:13,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 22:52:13,865 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 22:52:13,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 22:52:13,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 22:52:13,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 22:52:13,877 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 10:52:13" (1/1) ... [2021-06-05 22:52:13,884 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 10:52:13" (1/1) ... [2021-06-05 22:52:13,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 22:52:13,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 22:52:13,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 22:52:13,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 22:52:13,896 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 10:52:13" (1/1) ... [2021-06-05 22:52:13,896 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 10:52:13" (1/1) ... [2021-06-05 22:52:13,897 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 10:52:13" (1/1) ... [2021-06-05 22:52:13,897 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 10:52:13" (1/1) ... [2021-06-05 22:52:13,898 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 10:52:13" (1/1) ... [2021-06-05 22:52:13,900 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 10:52:13" (1/1) ... [2021-06-05 22:52:13,901 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 10:52:13" (1/1) ... [2021-06-05 22:52:13,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 22:52:13,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 22:52:13,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 22:52:13,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 22:52:13,906 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 10:52:13" (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 22:52:13,952 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-05 22:52:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-05 22:52:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-05 22:52:13,952 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-05 22:52:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-05 22:52:13,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-05 22:52:13,952 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 22:52:13,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 22:52:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 22:52:13,953 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-05 22:52:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-05 22:52:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-05 22:52:13,953 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-05 22:52:13,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-05 22:52:13,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-05 22:52:13,954 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 22:52:14,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 22:52:14,108 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 22:52:14,109 INFO L202 PluginConnector]: Adding new model min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:52:14 BoogieIcfgContainer [2021-06-05 22:52:14,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 22:52:14,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 22:52:14,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 22:52:14,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 22:52:14,120 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 10:52:13" (1/2) ... [2021-06-05 22:52:14,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad9467f and model type min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:52:14, skipping insertion in model container [2021-06-05 22:52:14,121 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 10:52:14" (2/2) ... [2021-06-05 22:52:14,122 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-dec.wvr.bpl [2021-06-05 22:52:14,125 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 22:52:14,125 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 22:52:14,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 22:52:14,126 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 22:52:14,186 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 22:52:14,199 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 22:52:14,210 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 22:52:14,210 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 22:52:14,210 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 22:52:14,210 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 22:52:14,210 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 22:52:14,210 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 22:52:14,210 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 22:52:14,210 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 22:52:14,216 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 35 transitions, 102 flow [2021-06-05 22:52:14,282 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 22:52:14,285 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 22:52:14,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-06-05 22:52:14,302 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:14,303 INFO L554 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 22:52:14,303 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:14,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:14,309 INFO L82 PathProgramCache]: Analyzing trace with hash -596639688, now seen corresponding path program 1 times [2021-06-05 22:52:14,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:14,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928202288] [2021-06-05 22:52:14,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:14,441 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 22:52:14,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:14,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928202288] [2021-06-05 22:52:14,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928202288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 22:52:14,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 22:52:14,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 22:52:14,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665906579] [2021-06-05 22:52:14,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 22:52:14,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:14,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 22:52:14,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 22:52:14,461 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 22:52:14,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:14,528 INFO L93 Difference]: Finished difference Result 961 states and 3450 transitions. [2021-06-05 22:52:14,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 22:52:14,530 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 22:52:14,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:14,549 INFO L225 Difference]: With dead ends: 961 [2021-06-05 22:52:14,549 INFO L226 Difference]: Without dead ends: 614 [2021-06-05 22:52:14,551 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 22:52:14,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-06-05 22:52:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2021-06-05 22:52:14,623 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 22:52:14,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 2202 transitions. [2021-06-05 22:52:14,626 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 2202 transitions. Word has length 23 [2021-06-05 22:52:14,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:14,627 INFO L482 AbstractCegarLoop]: Abstraction has 614 states and 2202 transitions. [2021-06-05 22:52:14,627 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 22:52:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 2202 transitions. [2021-06-05 22:52:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-06-05 22:52:14,630 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:14,630 INFO L554 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 22:52:14,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 22:52:14,631 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:14,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:14,633 INFO L82 PathProgramCache]: Analyzing trace with hash 616979414, now seen corresponding path program 2 times [2021-06-05 22:52:14,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:14,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989249498] [2021-06-05 22:52:14,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:14,684 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 22:52:14,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:14,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989249498] [2021-06-05 22:52:14,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989249498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 22:52:14,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 22:52:14,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 22:52:14,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893761870] [2021-06-05 22:52:14,686 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 22:52:14,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:14,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 22:52:14,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 22:52:14,687 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 22:52:14,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:14,786 INFO L93 Difference]: Finished difference Result 2435 states and 8733 transitions. [2021-06-05 22:52:14,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 22:52:14,786 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 22:52:14,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:14,795 INFO L225 Difference]: With dead ends: 2435 [2021-06-05 22:52:14,795 INFO L226 Difference]: Without dead ends: 1497 [2021-06-05 22:52:14,796 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 31.8ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 22:52:14,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2021-06-05 22:52:14,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 859. [2021-06-05 22:52:14,818 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 22:52:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 3041 transitions. [2021-06-05 22:52:14,823 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 3041 transitions. Word has length 23 [2021-06-05 22:52:14,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:14,823 INFO L482 AbstractCegarLoop]: Abstraction has 859 states and 3041 transitions. [2021-06-05 22:52:14,824 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 22:52:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 3041 transitions. [2021-06-05 22:52:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-06-05 22:52:14,826 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:14,826 INFO L554 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 22:52:14,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 22:52:14,827 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:14,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:14,827 INFO L82 PathProgramCache]: Analyzing trace with hash 2060589364, now seen corresponding path program 3 times [2021-06-05 22:52:14,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:14,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493767] [2021-06-05 22:52:14,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:14,876 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 22:52:14,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:14,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493767] [2021-06-05 22:52:14,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493767] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 22:52:14,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 22:52:14,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 22:52:14,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115529825] [2021-06-05 22:52:14,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 22:52:14,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:14,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 22:52:14,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 22:52:14,879 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 22:52:14,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:14,964 INFO L93 Difference]: Finished difference Result 3289 states and 11673 transitions. [2021-06-05 22:52:14,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 22:52:14,967 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 22:52:14,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:14,979 INFO L225 Difference]: With dead ends: 3289 [2021-06-05 22:52:14,980 INFO L226 Difference]: Without dead ends: 2391 [2021-06-05 22:52:14,983 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 24.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 22:52:14,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2021-06-05 22:52:15,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 910. [2021-06-05 22:52:15,012 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 22:52:15,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 3230 transitions. [2021-06-05 22:52:15,016 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 3230 transitions. Word has length 23 [2021-06-05 22:52:15,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:15,016 INFO L482 AbstractCegarLoop]: Abstraction has 910 states and 3230 transitions. [2021-06-05 22:52:15,016 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 22:52:15,016 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 3230 transitions. [2021-06-05 22:52:15,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-06-05 22:52:15,018 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:15,018 INFO L554 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 22:52:15,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 22:52:15,018 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:15,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:15,019 INFO L82 PathProgramCache]: Analyzing trace with hash -375854000, now seen corresponding path program 4 times [2021-06-05 22:52:15,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:15,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392275125] [2021-06-05 22:52:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:15,058 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 22:52:15,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:15,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392275125] [2021-06-05 22:52:15,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392275125] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 22:52:15,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 22:52:15,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 22:52:15,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376189098] [2021-06-05 22:52:15,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 22:52:15,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:15,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 22:52:15,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 22:52:15,060 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 22:52:15,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:15,077 INFO L93 Difference]: Finished difference Result 1081 states and 3814 transitions. [2021-06-05 22:52:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 22:52:15,078 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 22:52:15,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:15,081 INFO L225 Difference]: With dead ends: 1081 [2021-06-05 22:52:15,082 INFO L226 Difference]: Without dead ends: 830 [2021-06-05 22:52:15,082 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 22:52:15,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2021-06-05 22:52:15,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2021-06-05 22:52:15,100 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 22:52:15,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 2890 transitions. [2021-06-05 22:52:15,103 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 2890 transitions. Word has length 23 [2021-06-05 22:52:15,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:15,103 INFO L482 AbstractCegarLoop]: Abstraction has 830 states and 2890 transitions. [2021-06-05 22:52:15,103 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 22:52:15,103 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 2890 transitions. [2021-06-05 22:52:15,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 22:52:15,105 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:15,105 INFO L554 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 22:52:15,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 22:52:15,105 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:15,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:15,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1603494326, now seen corresponding path program 1 times [2021-06-05 22:52:15,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:15,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310320548] [2021-06-05 22:52:15,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:15,187 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 22:52:15,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:15,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310320548] [2021-06-05 22:52:15,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310320548] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:15,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708711385] [2021-06-05 22:52:15,189 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 22:52:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:15,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 22:52:15,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:15,333 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 22:52:15,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708711385] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:15,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:15,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-06-05 22:52:15,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001835270] [2021-06-05 22:52:15,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 22:52:15,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:15,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 22:52:15,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-06-05 22:52:15,334 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 22:52:15,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:15,393 INFO L93 Difference]: Finished difference Result 1914 states and 6600 transitions. [2021-06-05 22:52:15,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 22:52:15,393 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 22:52:15,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:15,400 INFO L225 Difference]: With dead ends: 1914 [2021-06-05 22:52:15,400 INFO L226 Difference]: Without dead ends: 1914 [2021-06-05 22:52:15,401 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 23.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-06-05 22:52:15,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2021-06-05 22:52:15,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1087. [2021-06-05 22:52:15,426 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 22:52:15,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 3913 transitions. [2021-06-05 22:52:15,429 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 3913 transitions. Word has length 25 [2021-06-05 22:52:15,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:15,429 INFO L482 AbstractCegarLoop]: Abstraction has 1087 states and 3913 transitions. [2021-06-05 22:52:15,430 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 22:52:15,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 3913 transitions. [2021-06-05 22:52:15,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 22:52:15,433 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:15,433 INFO L554 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 22:52:15,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 22:52:15,654 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:15,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:15,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1044941832, now seen corresponding path program 1 times [2021-06-05 22:52:15,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:15,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469947150] [2021-06-05 22:52:15,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:15,680 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 22:52:15,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:15,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469947150] [2021-06-05 22:52:15,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469947150] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 22:52:15,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 22:52:15,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 22:52:15,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492470837] [2021-06-05 22:52:15,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 22:52:15,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:15,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 22:52:15,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 22:52:15,682 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 22:52:15,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:15,710 INFO L93 Difference]: Finished difference Result 1486 states and 5095 transitions. [2021-06-05 22:52:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 22:52:15,711 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 22:52:15,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:15,716 INFO L225 Difference]: With dead ends: 1486 [2021-06-05 22:52:15,716 INFO L226 Difference]: Without dead ends: 1456 [2021-06-05 22:52:15,716 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 22:52:15,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2021-06-05 22:52:15,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1266. [2021-06-05 22:52:15,736 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 22:52:15,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 4450 transitions. [2021-06-05 22:52:15,739 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 4450 transitions. Word has length 25 [2021-06-05 22:52:15,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:15,739 INFO L482 AbstractCegarLoop]: Abstraction has 1266 states and 4450 transitions. [2021-06-05 22:52:15,739 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 22:52:15,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 4450 transitions. [2021-06-05 22:52:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 22:52:15,742 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:15,742 INFO L554 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 22:52:15,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 22:52:15,742 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:15,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:15,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1204324088, now seen corresponding path program 1 times [2021-06-05 22:52:15,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:15,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169554671] [2021-06-05 22:52:15,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:15,766 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 22:52:15,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:15,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169554671] [2021-06-05 22:52:15,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169554671] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 22:52:15,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 22:52:15,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 22:52:15,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475663483] [2021-06-05 22:52:15,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 22:52:15,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:15,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 22:52:15,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-05 22:52:15,767 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 22:52:15,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:15,826 INFO L93 Difference]: Finished difference Result 1470 states and 4972 transitions. [2021-06-05 22:52:15,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 22:52:15,826 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 22:52:15,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:15,832 INFO L225 Difference]: With dead ends: 1470 [2021-06-05 22:52:15,832 INFO L226 Difference]: Without dead ends: 1307 [2021-06-05 22:52:15,834 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-06-05 22:52:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2021-06-05 22:52:15,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1247. [2021-06-05 22:52:15,853 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 22:52:15,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 4353 transitions. [2021-06-05 22:52:15,856 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 4353 transitions. Word has length 25 [2021-06-05 22:52:15,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:15,856 INFO L482 AbstractCegarLoop]: Abstraction has 1247 states and 4353 transitions. [2021-06-05 22:52:15,856 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 22:52:15,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 4353 transitions. [2021-06-05 22:52:15,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 22:52:15,859 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:15,859 INFO L554 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 22:52:15,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 22:52:15,859 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:15,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:15,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1327684600, now seen corresponding path program 2 times [2021-06-05 22:52:15,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:15,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568872640] [2021-06-05 22:52:15,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:15,880 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 22:52:15,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:15,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568872640] [2021-06-05 22:52:15,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568872640] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 22:52:15,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 22:52:15,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 22:52:15,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989328172] [2021-06-05 22:52:15,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 22:52:15,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:15,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 22:52:15,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 22:52:15,881 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 22:52:15,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:15,912 INFO L93 Difference]: Finished difference Result 1418 states and 4897 transitions. [2021-06-05 22:52:15,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 22:52:15,913 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 22:52:15,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:15,918 INFO L225 Difference]: With dead ends: 1418 [2021-06-05 22:52:15,918 INFO L226 Difference]: Without dead ends: 1418 [2021-06-05 22:52:15,918 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 22:52:15,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2021-06-05 22:52:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1232. [2021-06-05 22:52:15,938 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 22:52:15,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 4315 transitions. [2021-06-05 22:52:15,941 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 4315 transitions. Word has length 25 [2021-06-05 22:52:15,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:15,941 INFO L482 AbstractCegarLoop]: Abstraction has 1232 states and 4315 transitions. [2021-06-05 22:52:15,941 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 22:52:15,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 4315 transitions. [2021-06-05 22:52:15,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-06-05 22:52:15,944 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:15,944 INFO L554 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 22:52:15,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 22:52:15,944 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:15,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:15,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1435620298, now seen corresponding path program 2 times [2021-06-05 22:52:15,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:15,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989755470] [2021-06-05 22:52:15,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:15,966 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 22:52:15,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:15,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989755470] [2021-06-05 22:52:15,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989755470] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:15,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735127375] [2021-06-05 22:52:15,967 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 22:52:16,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 22:52:16,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:16,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-05 22:52:16,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:16,070 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 22:52:16,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735127375] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:16,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:16,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-06-05 22:52:16,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445379288] [2021-06-05 22:52:16,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 22:52:16,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:16,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 22:52:16,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-06-05 22:52:16,072 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 22:52:16,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:16,118 INFO L93 Difference]: Finished difference Result 1482 states and 5191 transitions. [2021-06-05 22:52:16,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 22:52:16,119 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 22:52:16,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:16,138 INFO L225 Difference]: With dead ends: 1482 [2021-06-05 22:52:16,138 INFO L226 Difference]: Without dead ends: 1380 [2021-06-05 22:52:16,138 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 31.9ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-06-05 22:52:16,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2021-06-05 22:52:16,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1105. [2021-06-05 22:52:16,156 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 22:52:16,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 3924 transitions. [2021-06-05 22:52:16,158 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 3924 transitions. Word has length 25 [2021-06-05 22:52:16,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:16,158 INFO L482 AbstractCegarLoop]: Abstraction has 1105 states and 3924 transitions. [2021-06-05 22:52:16,158 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 22:52:16,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 3924 transitions. [2021-06-05 22:52:16,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-06-05 22:52:16,160 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:16,161 INFO L554 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 22:52:16,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 22:52:16,377 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:16,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:16,378 INFO L82 PathProgramCache]: Analyzing trace with hash 2103083480, now seen corresponding path program 1 times [2021-06-05 22:52:16,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:16,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528267256] [2021-06-05 22:52:16,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:16,442 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 22:52:16,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:16,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528267256] [2021-06-05 22:52:16,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528267256] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:16,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908205968] [2021-06-05 22:52:16,443 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 22:52:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:16,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-05 22:52:16,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:16,516 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 22:52:16,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908205968] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:16,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:16,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-06-05 22:52:16,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655813550] [2021-06-05 22:52:16,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 22:52:16,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:16,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 22:52:16,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-05 22:52:16,517 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 22:52:16,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:16,578 INFO L93 Difference]: Finished difference Result 1282 states and 4578 transitions. [2021-06-05 22:52:16,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 22:52:16,579 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 22:52:16,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:16,584 INFO L225 Difference]: With dead ends: 1282 [2021-06-05 22:52:16,584 INFO L226 Difference]: Without dead ends: 1282 [2021-06-05 22:52:16,584 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 55.6ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-06-05 22:52:16,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2021-06-05 22:52:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1044. [2021-06-05 22:52:16,600 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 22:52:16,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3715 transitions. [2021-06-05 22:52:16,602 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3715 transitions. Word has length 27 [2021-06-05 22:52:16,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:16,602 INFO L482 AbstractCegarLoop]: Abstraction has 1044 states and 3715 transitions. [2021-06-05 22:52:16,603 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 22:52:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3715 transitions. [2021-06-05 22:52:16,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 22:52:16,605 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:16,605 INFO L554 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 22:52:16,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-05 22:52:16,821 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:16,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:16,821 INFO L82 PathProgramCache]: Analyzing trace with hash -873778054, now seen corresponding path program 1 times [2021-06-05 22:52:16,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:16,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360778308] [2021-06-05 22:52:16,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:16,952 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 22:52:16,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:16,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360778308] [2021-06-05 22:52:16,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360778308] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:16,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162970254] [2021-06-05 22:52:16,953 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 22:52:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:16,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 22:52:16,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:17,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 22:52:17,072 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:17,075 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:17,075 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:17,076 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-06-05 22:52:17,118 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 22:52:17,120 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:17,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:17,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:17,121 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-06-05 22:52:17,142 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 22:52:17,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162970254] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:17,142 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:17,142 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-05 22:52:17,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484338558] [2021-06-05 22:52:17,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 22:52:17,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:17,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 22:52:17,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-06-05 22:52:17,143 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 22:52:17,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:17,323 INFO L93 Difference]: Finished difference Result 2477 states and 8903 transitions. [2021-06-05 22:52:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 22:52:17,324 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 22:52:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:17,330 INFO L225 Difference]: With dead ends: 2477 [2021-06-05 22:52:17,330 INFO L226 Difference]: Without dead ends: 1549 [2021-06-05 22:52:17,330 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 166.2ms TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-06-05 22:52:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2021-06-05 22:52:17,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1288. [2021-06-05 22:52:17,365 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 22:52:17,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 4541 transitions. [2021-06-05 22:52:17,369 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 4541 transitions. Word has length 29 [2021-06-05 22:52:17,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:17,369 INFO L482 AbstractCegarLoop]: Abstraction has 1288 states and 4541 transitions. [2021-06-05 22:52:17,369 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 22:52:17,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 4541 transitions. [2021-06-05 22:52:17,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 22:52:17,371 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:17,372 INFO L554 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 22:52:17,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 22:52:17,585 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:17,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:17,585 INFO L82 PathProgramCache]: Analyzing trace with hash -487573394, now seen corresponding path program 2 times [2021-06-05 22:52:17,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:17,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31993107] [2021-06-05 22:52:17,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:17,700 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 22:52:17,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:17,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31993107] [2021-06-05 22:52:17,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31993107] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:17,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461559190] [2021-06-05 22:52:17,701 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 22:52:17,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 22:52:17,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:17,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-05 22:52:17,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:17,816 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 22:52:17,817 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:17,819 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:17,819 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:17,819 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-05 22:52:17,839 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 22:52:17,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461559190] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:17,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:17,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-05 22:52:17,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256132574] [2021-06-05 22:52:17,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 22:52:17,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:17,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 22:52:17,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-05 22:52:17,843 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 22:52:18,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:18,098 INFO L93 Difference]: Finished difference Result 3395 states and 12093 transitions. [2021-06-05 22:52:18,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-05 22:52:18,099 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 22:52:18,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:18,103 INFO L225 Difference]: With dead ends: 3395 [2021-06-05 22:52:18,103 INFO L226 Difference]: Without dead ends: 1756 [2021-06-05 22:52:18,104 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 200.4ms TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2021-06-05 22:52:18,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2021-06-05 22:52:18,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1019. [2021-06-05 22:52:18,121 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 22:52:18,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 3549 transitions. [2021-06-05 22:52:18,123 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 3549 transitions. Word has length 29 [2021-06-05 22:52:18,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:18,123 INFO L482 AbstractCegarLoop]: Abstraction has 1019 states and 3549 transitions. [2021-06-05 22:52:18,124 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 22:52:18,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 3549 transitions. [2021-06-05 22:52:18,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 22:52:18,125 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:18,126 INFO L554 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 22:52:18,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-05 22:52:18,341 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:18,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:18,341 INFO L82 PathProgramCache]: Analyzing trace with hash -22453128, now seen corresponding path program 3 times [2021-06-05 22:52:18,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:18,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788949044] [2021-06-05 22:52:18,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:18,408 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 22:52:18,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:18,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788949044] [2021-06-05 22:52:18,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788949044] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:18,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680799835] [2021-06-05 22:52:18,409 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 22:52:18,445 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-05 22:52:18,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:18,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-05 22:52:18,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:18,473 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 22:52:18,474 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:18,477 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:18,477 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:18,477 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:7 [2021-06-05 22:52:18,522 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 22:52:18,524 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:18,525 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:18,526 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:18,526 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-06-05 22:52:18,540 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 22:52:18,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680799835] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:18,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:18,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-05 22:52:18,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613943747] [2021-06-05 22:52:18,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 22:52:18,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:18,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 22:52:18,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-05 22:52:18,542 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 22:52:18,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:18,680 INFO L93 Difference]: Finished difference Result 2225 states and 7823 transitions. [2021-06-05 22:52:18,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 22:52:18,680 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 22:52:18,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:18,683 INFO L225 Difference]: With dead ends: 2225 [2021-06-05 22:52:18,683 INFO L226 Difference]: Without dead ends: 1056 [2021-06-05 22:52:18,683 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 125.0ms TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2021-06-05 22:52:18,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2021-06-05 22:52:18,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 730. [2021-06-05 22:52:18,694 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 22:52:18,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 2542 transitions. [2021-06-05 22:52:18,696 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 2542 transitions. Word has length 29 [2021-06-05 22:52:18,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:18,696 INFO L482 AbstractCegarLoop]: Abstraction has 730 states and 2542 transitions. [2021-06-05 22:52:18,696 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 22:52:18,696 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 2542 transitions. [2021-06-05 22:52:18,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 22:52:18,698 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:18,698 INFO L554 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 22:52:18,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 22:52:18,916 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:18,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:18,917 INFO L82 PathProgramCache]: Analyzing trace with hash 836346912, now seen corresponding path program 4 times [2021-06-05 22:52:18,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:18,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896097793] [2021-06-05 22:52:18,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:19,048 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 22:52:19,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:19,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896097793] [2021-06-05 22:52:19,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896097793] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:19,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640451678] [2021-06-05 22:52:19,048 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 22:52:19,084 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 22:52:19,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:19,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-05 22:52:19,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:19,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 22:52:19,135 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:19,138 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:19,138 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:19,138 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-06-05 22:52:19,154 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 22:52:19,155 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:19,156 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:19,156 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:19,156 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-06-05 22:52:19,174 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 22:52:19,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640451678] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:19,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:19,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-06-05 22:52:19,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787959446] [2021-06-05 22:52:19,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 22:52:19,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:19,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 22:52:19,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-05 22:52:19,175 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 22:52:19,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:19,283 INFO L93 Difference]: Finished difference Result 1734 states and 6084 transitions. [2021-06-05 22:52:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 22:52:19,283 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 22:52:19,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:19,285 INFO L225 Difference]: With dead ends: 1734 [2021-06-05 22:52:19,285 INFO L226 Difference]: Without dead ends: 812 [2021-06-05 22:52:19,286 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 143.7ms TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-06-05 22:52:19,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2021-06-05 22:52:19,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 764. [2021-06-05 22:52:19,296 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 22:52:19,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 2626 transitions. [2021-06-05 22:52:19,298 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 2626 transitions. Word has length 29 [2021-06-05 22:52:19,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:19,298 INFO L482 AbstractCegarLoop]: Abstraction has 764 states and 2626 transitions. [2021-06-05 22:52:19,298 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 22:52:19,298 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 2626 transitions. [2021-06-05 22:52:19,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 22:52:19,299 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:19,299 INFO L554 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 22:52:19,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-05 22:52:19,513 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:19,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:19,513 INFO L82 PathProgramCache]: Analyzing trace with hash 862166658, now seen corresponding path program 5 times [2021-06-05 22:52:19,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:19,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070364548] [2021-06-05 22:52:19,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:19,534 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 22:52:19,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:19,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070364548] [2021-06-05 22:52:19,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070364548] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:19,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930292966] [2021-06-05 22:52:19,534 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 22:52:19,567 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-05 22:52:19,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:19,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-05 22:52:19,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:19,614 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 22:52:19,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930292966] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:19,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:19,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-05 22:52:19,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171879930] [2021-06-05 22:52:19,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 22:52:19,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:19,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 22:52:19,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-05 22:52:19,616 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 22:52:19,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:19,687 INFO L93 Difference]: Finished difference Result 2158 states and 7467 transitions. [2021-06-05 22:52:19,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 22:52:19,687 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 22:52:19,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:19,692 INFO L225 Difference]: With dead ends: 2158 [2021-06-05 22:52:19,692 INFO L226 Difference]: Without dead ends: 2158 [2021-06-05 22:52:19,693 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 34.2ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-05 22:52:19,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-06-05 22:52:19,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1150. [2021-06-05 22:52:19,717 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 22:52:19,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4166 transitions. [2021-06-05 22:52:19,720 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4166 transitions. Word has length 31 [2021-06-05 22:52:19,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:19,720 INFO L482 AbstractCegarLoop]: Abstraction has 1150 states and 4166 transitions. [2021-06-05 22:52:19,720 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 22:52:19,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4166 transitions. [2021-06-05 22:52:19,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 22:52:19,722 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:19,722 INFO L554 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 22:52:19,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-05 22:52:19,943 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:19,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:19,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1214611312, now seen corresponding path program 6 times [2021-06-05 22:52:19,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:19,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215070622] [2021-06-05 22:52:19,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:19,973 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 22:52:19,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:19,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215070622] [2021-06-05 22:52:19,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215070622] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:19,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637856824] [2021-06-05 22:52:19,973 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 22:52:20,008 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-05 22:52:20,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:20,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-05 22:52:20,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:20,084 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 22:52:20,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637856824] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:20,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:20,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-05 22:52:20,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753019507] [2021-06-05 22:52:20,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 22:52:20,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:20,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 22:52:20,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-06-05 22:52:20,085 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 22:52:20,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:20,526 INFO L93 Difference]: Finished difference Result 3097 states and 11097 transitions. [2021-06-05 22:52:20,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-05 22:52:20,527 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 22:52:20,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:20,533 INFO L225 Difference]: With dead ends: 3097 [2021-06-05 22:52:20,533 INFO L226 Difference]: Without dead ends: 3092 [2021-06-05 22:52:20,534 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 283.2ms TimeCoverageRelationStatistics Valid=308, Invalid=952, Unknown=0, NotChecked=0, Total=1260 [2021-06-05 22:52:20,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2021-06-05 22:52:20,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 1871. [2021-06-05 22:52:20,568 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 22:52:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 7117 transitions. [2021-06-05 22:52:20,572 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 7117 transitions. Word has length 31 [2021-06-05 22:52:20,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:20,572 INFO L482 AbstractCegarLoop]: Abstraction has 1871 states and 7117 transitions. [2021-06-05 22:52:20,572 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 22:52:20,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 7117 transitions. [2021-06-05 22:52:20,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 22:52:20,577 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:20,577 INFO L554 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 22:52:20,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-05 22:52:20,793 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:20,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:20,793 INFO L82 PathProgramCache]: Analyzing trace with hash -373015140, now seen corresponding path program 7 times [2021-06-05 22:52:20,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:20,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759979641] [2021-06-05 22:52:20,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:20,816 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 22:52:20,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:20,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759979641] [2021-06-05 22:52:20,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759979641] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:20,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519486329] [2021-06-05 22:52:20,816 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 22:52:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:20,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-05 22:52:20,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:20,889 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 22:52:20,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519486329] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:20,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:20,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-06-05 22:52:20,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140340272] [2021-06-05 22:52:20,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 22:52:20,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:20,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 22:52:20,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 22:52:20,891 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 22:52:20,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:20,963 INFO L93 Difference]: Finished difference Result 3521 states and 13072 transitions. [2021-06-05 22:52:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 22:52:20,963 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 22:52:20,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:20,971 INFO L225 Difference]: With dead ends: 3521 [2021-06-05 22:52:20,971 INFO L226 Difference]: Without dead ends: 3502 [2021-06-05 22:52:20,971 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 27.7ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-06-05 22:52:20,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2021-06-05 22:52:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2458. [2021-06-05 22:52:21,012 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 22:52:21,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 9678 transitions. [2021-06-05 22:52:21,017 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 9678 transitions. Word has length 33 [2021-06-05 22:52:21,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:21,018 INFO L482 AbstractCegarLoop]: Abstraction has 2458 states and 9678 transitions. [2021-06-05 22:52:21,018 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 22:52:21,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 9678 transitions. [2021-06-05 22:52:21,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 22:52:21,022 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:21,022 INFO L554 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 22:52:21,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-05 22:52:21,237 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:21,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:21,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1066357152, now seen corresponding path program 8 times [2021-06-05 22:52:21,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:21,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128415887] [2021-06-05 22:52:21,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:21,262 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 22:52:21,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:21,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128415887] [2021-06-05 22:52:21,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128415887] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:21,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760554174] [2021-06-05 22:52:21,262 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 22:52:21,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 22:52:21,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:21,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-05 22:52:21,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:21,338 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 22:52:21,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760554174] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:21,338 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:21,338 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2021-06-05 22:52:21,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895418868] [2021-06-05 22:52:21,338 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 22:52:21,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:21,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 22:52:21,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-05 22:52:21,339 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 22:52:21,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:21,413 INFO L93 Difference]: Finished difference Result 3425 states and 12799 transitions. [2021-06-05 22:52:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 22:52:21,414 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 22:52:21,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:21,421 INFO L225 Difference]: With dead ends: 3425 [2021-06-05 22:52:21,421 INFO L226 Difference]: Without dead ends: 3425 [2021-06-05 22:52:21,421 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 22.5ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 22:52:21,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2021-06-05 22:52:21,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 2506. [2021-06-05 22:52:21,460 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 22:52:21,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 9871 transitions. [2021-06-05 22:52:21,466 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 9871 transitions. Word has length 33 [2021-06-05 22:52:21,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:21,466 INFO L482 AbstractCegarLoop]: Abstraction has 2506 states and 9871 transitions. [2021-06-05 22:52:21,466 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 22:52:21,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 9871 transitions. [2021-06-05 22:52:21,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-06-05 22:52:21,470 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:21,470 INFO L554 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 22:52:21,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-05 22:52:21,688 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:21,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:21,689 INFO L82 PathProgramCache]: Analyzing trace with hash -279862338, now seen corresponding path program 9 times [2021-06-05 22:52:21,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:21,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003120295] [2021-06-05 22:52:21,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:21,801 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 22:52:21,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:21,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003120295] [2021-06-05 22:52:21,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003120295] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:21,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641299974] [2021-06-05 22:52:21,802 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 22:52:21,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-05 22:52:21,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:21,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-05 22:52:21,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:21,947 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 22:52:21,949 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:21,951 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:21,952 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:21,952 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-06-05 22:52:22,010 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 22:52:22,012 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:22,013 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:22,014 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:22,014 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-06-05 22:52:22,034 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 22:52:22,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641299974] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:22,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:22,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-06-05 22:52:22,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319469851] [2021-06-05 22:52:22,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-05 22:52:22,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:22,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-05 22:52:22,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-06-05 22:52:22,040 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 22:52:22,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:22,695 INFO L93 Difference]: Finished difference Result 7202 states and 27392 transitions. [2021-06-05 22:52:22,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-05 22:52:22,695 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 22:52:22,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:22,703 INFO L225 Difference]: With dead ends: 7202 [2021-06-05 22:52:22,704 INFO L226 Difference]: Without dead ends: 3817 [2021-06-05 22:52:22,704 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 345.4ms TimeCoverageRelationStatistics Valid=186, Invalid=870, Unknown=0, NotChecked=0, Total=1056 [2021-06-05 22:52:22,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2021-06-05 22:52:22,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 2612. [2021-06-05 22:52:22,744 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 22:52:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 10153 transitions. [2021-06-05 22:52:22,750 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 10153 transitions. Word has length 35 [2021-06-05 22:52:22,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:22,750 INFO L482 AbstractCegarLoop]: Abstraction has 2612 states and 10153 transitions. [2021-06-05 22:52:22,750 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 22:52:22,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 10153 transitions. [2021-06-05 22:52:22,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-06-05 22:52:22,754 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:22,754 INFO L554 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 22:52:22,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 22:52:22,969 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:22,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:22,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1543863878, now seen corresponding path program 10 times [2021-06-05 22:52:22,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:22,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956790429] [2021-06-05 22:52:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:23,097 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 22:52:23,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:23,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956790429] [2021-06-05 22:52:23,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956790429] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:23,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849087585] [2021-06-05 22:52:23,098 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 22:52:23,132 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 22:52:23,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:23,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-05 22:52:23,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:23,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:23,200 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 22:52:23,201 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:23,205 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:23,206 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:23,206 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:12 [2021-06-05 22:52:23,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2021-06-05 22:52:23,226 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:23,229 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:23,230 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:23,230 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-06-05 22:52:23,280 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 22:52:23,281 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:23,282 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:23,283 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:23,283 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-06-05 22:52:23,296 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 22:52:23,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849087585] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:23,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:23,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-06-05 22:52:23,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175101467] [2021-06-05 22:52:23,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 22:52:23,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:23,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 22:52:23,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-05 22:52:23,298 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 22:52:23,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:23,731 INFO L93 Difference]: Finished difference Result 5807 states and 22379 transitions. [2021-06-05 22:52:23,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 22:52:23,732 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 22:52:23,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:23,737 INFO L225 Difference]: With dead ends: 5807 [2021-06-05 22:52:23,737 INFO L226 Difference]: Without dead ends: 2780 [2021-06-05 22:52:23,738 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 293.4ms TimeCoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2021-06-05 22:52:23,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2021-06-05 22:52:23,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2646. [2021-06-05 22:52:23,769 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 22:52:23,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 10219 transitions. [2021-06-05 22:52:23,775 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 10219 transitions. Word has length 35 [2021-06-05 22:52:23,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:23,775 INFO L482 AbstractCegarLoop]: Abstraction has 2646 states and 10219 transitions. [2021-06-05 22:52:23,775 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 22:52:23,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 10219 transitions. [2021-06-05 22:52:23,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 22:52:23,779 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:23,779 INFO L554 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 22:52:23,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-06-05 22:52:23,993 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:23,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:23,993 INFO L82 PathProgramCache]: Analyzing trace with hash -833611472, now seen corresponding path program 11 times [2021-06-05 22:52:23,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:23,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734190060] [2021-06-05 22:52:23,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:24,020 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 22:52:24,020 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:24,020 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734190060] [2021-06-05 22:52:24,020 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734190060] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:24,020 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072413892] [2021-06-05 22:52:24,020 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 22:52:24,063 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-05 22:52:24,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:24,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-05 22:52:24,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:24,104 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 22:52:24,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072413892] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:24,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:24,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2021-06-05 22:52:24,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866059109] [2021-06-05 22:52:24,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 22:52:24,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:24,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 22:52:24,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-06-05 22:52:24,106 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 22:52:24,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:24,189 INFO L93 Difference]: Finished difference Result 6355 states and 23872 transitions. [2021-06-05 22:52:24,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 22:52:24,190 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 22:52:24,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:24,201 INFO L225 Difference]: With dead ends: 6355 [2021-06-05 22:52:24,201 INFO L226 Difference]: Without dead ends: 6330 [2021-06-05 22:52:24,201 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 25.4ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-06-05 22:52:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6330 states. [2021-06-05 22:52:24,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6330 to 3550. [2021-06-05 22:52:24,293 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 22:52:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 14431 transitions. [2021-06-05 22:52:24,302 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 14431 transitions. Word has length 37 [2021-06-05 22:52:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:24,302 INFO L482 AbstractCegarLoop]: Abstraction has 3550 states and 14431 transitions. [2021-06-05 22:52:24,302 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 22:52:24,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 14431 transitions. [2021-06-05 22:52:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 22:52:24,308 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:24,308 INFO L554 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 22:52:24,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 22:52:24,525 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:24,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:24,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1361280888, now seen corresponding path program 12 times [2021-06-05 22:52:24,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:24,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226580012] [2021-06-05 22:52:24,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:24,552 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 22:52:24,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:24,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226580012] [2021-06-05 22:52:24,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226580012] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:24,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340725645] [2021-06-05 22:52:24,553 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) [2021-06-05 22:52:24,594 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-05 22:52:24,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:24,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-05 22:52:24,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 22:52:24,671 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 22:52:24,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340725645] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:24,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:24,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2021-06-05 22:52:24,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616807874] [2021-06-05 22:52:24,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 22:52:24,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:24,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 22:52:24,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-06-05 22:52:24,672 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 22:52:25,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:25,600 INFO L93 Difference]: Finished difference Result 18520 states and 67963 transitions. [2021-06-05 22:52:25,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-05 22:52:25,600 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 22:52:25,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:25,635 INFO L225 Difference]: With dead ends: 18520 [2021-06-05 22:52:25,635 INFO L226 Difference]: Without dead ends: 18520 [2021-06-05 22:52:25,636 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2138 ImplicationChecksByTransitivity, 567.6ms TimeCoverageRelationStatistics Valid=1229, Invalid=4173, Unknown=0, NotChecked=0, Total=5402 [2021-06-05 22:52:25,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18520 states. [2021-06-05 22:52:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18520 to 4298. [2021-06-05 22:52:25,784 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 22:52:25,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 17416 transitions. [2021-06-05 22:52:25,795 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 17416 transitions. Word has length 37 [2021-06-05 22:52:25,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:25,795 INFO L482 AbstractCegarLoop]: Abstraction has 4298 states and 17416 transitions. [2021-06-05 22:52:25,795 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 22:52:25,795 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 17416 transitions. [2021-06-05 22:52:25,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-05 22:52:25,803 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:25,803 INFO L554 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 22:52:26,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-06-05 22:52:26,017 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:26,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:26,017 INFO L82 PathProgramCache]: Analyzing trace with hash 244206134, now seen corresponding path program 13 times [2021-06-05 22:52:26,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:26,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311750995] [2021-06-05 22:52:26,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:26,055 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 22:52:26,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:26,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311750995] [2021-06-05 22:52:26,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311750995] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:26,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676865191] [2021-06-05 22:52:26,056 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 22:52:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:26,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-05 22:52:26,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:26,147 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 22:52:26,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676865191] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:26,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:26,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-06-05 22:52:26,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665576197] [2021-06-05 22:52:26,148 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 22:52:26,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:26,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 22:52:26,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-06-05 22:52:26,148 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 22:52:26,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:26,247 INFO L93 Difference]: Finished difference Result 7391 states and 28099 transitions. [2021-06-05 22:52:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 22:52:26,249 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 22:52:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:26,262 INFO L225 Difference]: With dead ends: 7391 [2021-06-05 22:52:26,262 INFO L226 Difference]: Without dead ends: 7391 [2021-06-05 22:52:26,262 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 40.7ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-06-05 22:52:26,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7391 states. [2021-06-05 22:52:26,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7391 to 3716. [2021-06-05 22:52:26,331 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 22:52:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 14762 transitions. [2021-06-05 22:52:26,340 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 14762 transitions. Word has length 39 [2021-06-05 22:52:26,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:26,340 INFO L482 AbstractCegarLoop]: Abstraction has 3716 states and 14762 transitions. [2021-06-05 22:52:26,340 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 22:52:26,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 14762 transitions. [2021-06-05 22:52:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-06-05 22:52:26,347 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:26,347 INFO L554 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 22:52:26,559 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 22:52:26,559 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:26,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:26,559 INFO L82 PathProgramCache]: Analyzing trace with hash 464290510, now seen corresponding path program 14 times [2021-06-05 22:52:26,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:26,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268376671] [2021-06-05 22:52:26,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:26,618 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 22:52:26,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:26,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268376671] [2021-06-05 22:52:26,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268376671] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:26,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439117063] [2021-06-05 22:52:26,619 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 22:52:26,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 22:52:26,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:26,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-05 22:52:26,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:26,721 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 22:52:26,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439117063] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:26,721 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:26,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-06-05 22:52:26,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541526098] [2021-06-05 22:52:26,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 22:52:26,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:26,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 22:52:26,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-05 22:52:26,722 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 22:52:26,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:26,850 INFO L93 Difference]: Finished difference Result 8929 states and 34274 transitions. [2021-06-05 22:52:26,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 22:52:26,850 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 22:52:26,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:26,866 INFO L225 Difference]: With dead ends: 8929 [2021-06-05 22:52:26,866 INFO L226 Difference]: Without dead ends: 8929 [2021-06-05 22:52:26,867 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 56.2ms TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-06-05 22:52:26,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8929 states. [2021-06-05 22:52:26,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8929 to 5458. [2021-06-05 22:52:26,957 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 22:52:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 22266 transitions. [2021-06-05 22:52:26,972 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 22266 transitions. Word has length 39 [2021-06-05 22:52:26,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:26,972 INFO L482 AbstractCegarLoop]: Abstraction has 5458 states and 22266 transitions. [2021-06-05 22:52:26,972 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 22:52:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 22266 transitions. [2021-06-05 22:52:26,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-05 22:52:26,984 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:26,984 INFO L554 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 22:52:27,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-05 22:52:27,200 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:27,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:27,201 INFO L82 PathProgramCache]: Analyzing trace with hash -316201746, now seen corresponding path program 15 times [2021-06-05 22:52:27,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:27,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196124876] [2021-06-05 22:52:27,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:27,229 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 22:52:27,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:27,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196124876] [2021-06-05 22:52:27,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196124876] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:27,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619114607] [2021-06-05 22:52:27,229 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 22:52:27,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-05 22:52:27,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:27,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-05 22:52:27,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:27,363 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 22:52:27,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619114607] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:27,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:27,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2021-06-05 22:52:27,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855000964] [2021-06-05 22:52:27,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-05 22:52:27,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:27,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-05 22:52:27,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-06-05 22:52:27,364 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 22:52:28,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:28,277 INFO L93 Difference]: Finished difference Result 25578 states and 101328 transitions. [2021-06-05 22:52:28,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-06-05 22:52:28,277 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 22:52:28,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:28,340 INFO L225 Difference]: With dead ends: 25578 [2021-06-05 22:52:28,340 INFO L226 Difference]: Without dead ends: 25021 [2021-06-05 22:52:28,341 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 513.7ms TimeCoverageRelationStatistics Valid=870, Invalid=3420, Unknown=0, NotChecked=0, Total=4290 [2021-06-05 22:52:28,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25021 states. [2021-06-05 22:52:28,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25021 to 12090. [2021-06-05 22:52:28,784 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 22:52:28,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12090 states to 12090 states and 50290 transitions. [2021-06-05 22:52:28,826 INFO L78 Accepts]: Start accepts. Automaton has 12090 states and 50290 transitions. Word has length 41 [2021-06-05 22:52:28,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:28,826 INFO L482 AbstractCegarLoop]: Abstraction has 12090 states and 50290 transitions. [2021-06-05 22:52:28,826 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 22:52:28,826 INFO L276 IsEmpty]: Start isEmpty. Operand 12090 states and 50290 transitions. [2021-06-05 22:52:28,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-06-05 22:52:28,849 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:28,849 INFO L554 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 22:52:29,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-06-05 22:52:29,065 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:29,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:29,065 INFO L82 PathProgramCache]: Analyzing trace with hash 76824112, now seen corresponding path program 16 times [2021-06-05 22:52:29,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:29,065 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267013430] [2021-06-05 22:52:29,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:29,250 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 22:52:29,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:29,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267013430] [2021-06-05 22:52:29,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267013430] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:29,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211963293] [2021-06-05 22:52:29,250 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 22:52:29,282 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 22:52:29,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:29,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-05 22:52:29,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:29,332 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:29,333 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 22:52:29,334 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:29,338 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:29,339 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:29,339 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:19 [2021-06-05 22:52:29,406 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 22:52:29,407 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:29,411 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:29,411 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:29,412 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:14 [2021-06-05 22:52:29,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:29,435 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 22:52:29,437 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:29,442 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:29,443 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 22:52:29,443 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:11 [2021-06-05 22:52:29,554 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:29,554 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 22:52:29,559 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 22:52:29,562 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-06-05 22:52:29,562 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 22:52:29,563 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:29,568 INFO L628 ElimStorePlain]: treesize reduction 16, result has 23.8 percent of original size [2021-06-05 22:52:29,568 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 22:52:29,568 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:5 [2021-06-05 22:52:29,580 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 22:52:29,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211963293] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:29,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:29,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 19 [2021-06-05 22:52:29,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756214901] [2021-06-05 22:52:29,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 22:52:29,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:29,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 22:52:29,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-06-05 22:52:29,581 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 22:52:30,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:30,473 INFO L93 Difference]: Finished difference Result 29674 states and 123111 transitions. [2021-06-05 22:52:30,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 22:52:30,474 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 22:52:30,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:30,536 INFO L225 Difference]: With dead ends: 29674 [2021-06-05 22:52:30,536 INFO L226 Difference]: Without dead ends: 10661 [2021-06-05 22:52:30,536 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 434.1ms TimeCoverageRelationStatistics Valid=164, Invalid=958, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 22:52:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10661 states. [2021-06-05 22:52:30,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10661 to 10661. [2021-06-05 22:52:30,720 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 22:52:30,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10661 states to 10661 states and 44589 transitions. [2021-06-05 22:52:30,749 INFO L78 Accepts]: Start accepts. Automaton has 10661 states and 44589 transitions. Word has length 41 [2021-06-05 22:52:30,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:30,749 INFO L482 AbstractCegarLoop]: Abstraction has 10661 states and 44589 transitions. [2021-06-05 22:52:30,749 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 22:52:30,749 INFO L276 IsEmpty]: Start isEmpty. Operand 10661 states and 44589 transitions. [2021-06-05 22:52:30,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 22:52:30,771 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:30,771 INFO L554 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 22:52:30,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-06-05 22:52:30,985 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:30,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:30,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1918512476, now seen corresponding path program 17 times [2021-06-05 22:52:30,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:30,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363707996] [2021-06-05 22:52:30,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:31,098 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 22:52:31,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:31,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363707996] [2021-06-05 22:52:31,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363707996] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:31,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99927350] [2021-06-05 22:52:31,099 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 22:52:31,138 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-05 22:52:31,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:31,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 22:52:31,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:31,239 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 22:52:31,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99927350] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:31,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:31,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-06-05 22:52:31,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788978743] [2021-06-05 22:52:31,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 22:52:31,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:31,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 22:52:31,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-05 22:52:31,241 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 22:52:31,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:31,510 INFO L93 Difference]: Finished difference Result 29121 states and 115415 transitions. [2021-06-05 22:52:31,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 22:52:31,510 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 22:52:31,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:31,581 INFO L225 Difference]: With dead ends: 29121 [2021-06-05 22:52:31,581 INFO L226 Difference]: Without dead ends: 29121 [2021-06-05 22:52:31,582 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 88.9ms TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-06-05 22:52:31,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29121 states. [2021-06-05 22:52:31,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29121 to 13495. [2021-06-05 22:52:31,993 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 22:52:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 56876 transitions. [2021-06-05 22:52:32,029 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 56876 transitions. Word has length 45 [2021-06-05 22:52:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:32,029 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 56876 transitions. [2021-06-05 22:52:32,029 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 22:52:32,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 56876 transitions. [2021-06-05 22:52:32,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 22:52:32,110 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:32,110 INFO L554 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 22:52:32,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-06-05 22:52:32,313 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:32,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:32,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1257155186, now seen corresponding path program 18 times [2021-06-05 22:52:32,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:32,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637323340] [2021-06-05 22:52:32,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:32,344 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 22:52:32,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:32,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637323340] [2021-06-05 22:52:32,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637323340] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:32,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467168034] [2021-06-05 22:52:32,344 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 22:52:32,379 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-05 22:52:32,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:32,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 22:52:32,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:32,431 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 22:52:32,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467168034] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:32,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:32,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-06-05 22:52:32,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146721222] [2021-06-05 22:52:32,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 22:52:32,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:32,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 22:52:32,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-06-05 22:52:32,432 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 22:52:32,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:32,576 INFO L93 Difference]: Finished difference Result 17084 states and 68774 transitions. [2021-06-05 22:52:32,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 22:52:32,576 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 22:52:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:32,611 INFO L225 Difference]: With dead ends: 17084 [2021-06-05 22:52:32,611 INFO L226 Difference]: Without dead ends: 17079 [2021-06-05 22:52:32,612 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 34.9ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-06-05 22:52:32,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17079 states. [2021-06-05 22:52:32,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17079 to 11949. [2021-06-05 22:52:32,857 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 22:52:32,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11949 states to 11949 states and 49895 transitions. [2021-06-05 22:52:32,888 INFO L78 Accepts]: Start accepts. Automaton has 11949 states and 49895 transitions. Word has length 45 [2021-06-05 22:52:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:32,889 INFO L482 AbstractCegarLoop]: Abstraction has 11949 states and 49895 transitions. [2021-06-05 22:52:32,889 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 22:52:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 11949 states and 49895 transitions. [2021-06-05 22:52:32,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 22:52:32,908 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:32,908 INFO L554 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 22:52:33,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-06-05 22:52:33,109 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:33,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:33,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1355059624, now seen corresponding path program 19 times [2021-06-05 22:52:33,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:33,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987349] [2021-06-05 22:52:33,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:33,148 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 22:52:33,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:33,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987349] [2021-06-05 22:52:33,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987349] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:33,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224925928] [2021-06-05 22:52:33,149 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 22:52:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:33,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 22:52:33,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:33,232 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 22:52:33,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224925928] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:33,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:33,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 8 [2021-06-05 22:52:33,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194878467] [2021-06-05 22:52:33,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 22:52:33,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:33,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 22:52:33,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-05 22:52:33,233 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 22:52:33,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:33,562 INFO L93 Difference]: Finished difference Result 25411 states and 101469 transitions. [2021-06-05 22:52:33,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 22:52:33,563 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 22:52:33,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:33,627 INFO L225 Difference]: With dead ends: 25411 [2021-06-05 22:52:33,627 INFO L226 Difference]: Without dead ends: 25396 [2021-06-05 22:52:33,627 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 62.8ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-06-05 22:52:33,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25396 states. [2021-06-05 22:52:34,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25396 to 16947. [2021-06-05 22:52:34,073 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 22:52:34,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16947 states to 16947 states and 73151 transitions. [2021-06-05 22:52:34,119 INFO L78 Accepts]: Start accepts. Automaton has 16947 states and 73151 transitions. Word has length 45 [2021-06-05 22:52:34,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:34,119 INFO L482 AbstractCegarLoop]: Abstraction has 16947 states and 73151 transitions. [2021-06-05 22:52:34,119 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 22:52:34,119 INFO L276 IsEmpty]: Start isEmpty. Operand 16947 states and 73151 transitions. [2021-06-05 22:52:34,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 22:52:34,148 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:34,148 INFO L554 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 22:52:34,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 22:52:34,357 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:34,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:34,357 INFO L82 PathProgramCache]: Analyzing trace with hash -2063999716, now seen corresponding path program 20 times [2021-06-05 22:52:34,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:34,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038602501] [2021-06-05 22:52:34,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:34,385 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 22:52:34,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:34,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038602501] [2021-06-05 22:52:34,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038602501] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:34,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95181036] [2021-06-05 22:52:34,386 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 22:52:34,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-05 22:52:34,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:34,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 22:52:34,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:34,475 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 22:52:34,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95181036] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:34,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:34,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-06-05 22:52:34,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325047003] [2021-06-05 22:52:34,476 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 22:52:34,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:34,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 22:52:34,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-06-05 22:52:34,476 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 22:52:34,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:34,849 INFO L93 Difference]: Finished difference Result 28052 states and 112596 transitions. [2021-06-05 22:52:34,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 22:52:34,850 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 22:52:34,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:34,930 INFO L225 Difference]: With dead ends: 28052 [2021-06-05 22:52:34,930 INFO L226 Difference]: Without dead ends: 28052 [2021-06-05 22:52:34,930 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 43.2ms TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-06-05 22:52:34,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28052 states. [2021-06-05 22:52:35,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28052 to 17627. [2021-06-05 22:52:35,350 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 22:52:35,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17627 states to 17627 states and 75982 transitions. [2021-06-05 22:52:35,397 INFO L78 Accepts]: Start accepts. Automaton has 17627 states and 75982 transitions. Word has length 45 [2021-06-05 22:52:35,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:35,397 INFO L482 AbstractCegarLoop]: Abstraction has 17627 states and 75982 transitions. [2021-06-05 22:52:35,397 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 22:52:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 17627 states and 75982 transitions. [2021-06-05 22:52:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-06-05 22:52:35,434 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:35,435 INFO L554 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 22:52:35,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-06-05 22:52:35,649 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:35,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:35,649 INFO L82 PathProgramCache]: Analyzing trace with hash 953180244, now seen corresponding path program 21 times [2021-06-05 22:52:35,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:35,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126712673] [2021-06-05 22:52:35,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:35,686 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 22:52:35,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:35,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126712673] [2021-06-05 22:52:35,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126712673] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:35,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716458414] [2021-06-05 22:52:35,686 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 22:52:35,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-06-05 22:52:35,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:35,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-05 22:52:35,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:35,838 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-06-05 22:52:35,838 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 22:52:35,841 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 22:52:35,861 INFO L628 ElimStorePlain]: treesize reduction 15, result has 67.4 percent of original size [2021-06-05 22:52:35,867 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 22:52:35,867 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:28 [2021-06-05 22:52:35,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:35,970 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-06-05 22:52:35,970 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 22:52:35,973 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 22:52:35,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:35,976 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 22:52:35,977 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:36,016 INFO L628 ElimStorePlain]: treesize reduction 15, result has 79.5 percent of original size [2021-06-05 22:52:36,036 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 22:52:36,036 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:50 [2021-06-05 22:52:36,126 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-06-05 22:52:36,126 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 22:52:36,129 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 22:52:36,154 INFO L628 ElimStorePlain]: treesize reduction 15, result has 69.4 percent of original size [2021-06-05 22:52:36,160 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 22:52:36,160 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:34 [2021-06-05 22:52:36,605 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:36,605 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 22:52:36,609 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 22:52:36,619 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:36,625 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 22:52:36,625 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:31 [2021-06-05 22:52:36,708 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 22:52:36,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716458414] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:36,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:36,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 21 [2021-06-05 22:52:36,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284152719] [2021-06-05 22:52:36,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-05 22:52:36,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:36,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-05 22:52:36,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2021-06-05 22:52:36,709 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 22:52:40,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:40,167 INFO L93 Difference]: Finished difference Result 45459 states and 178326 transitions. [2021-06-05 22:52:40,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-06-05 22:52:40,167 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 22:52:40,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:40,267 INFO L225 Difference]: With dead ends: 45459 [2021-06-05 22:52:40,267 INFO L226 Difference]: Without dead ends: 44947 [2021-06-05 22:52:40,269 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 86 SyntacticMatches, 14 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2667 ImplicationChecksByTransitivity, 2585.9ms TimeCoverageRelationStatistics Valid=1243, Invalid=7129, Unknown=0, NotChecked=0, Total=8372 [2021-06-05 22:52:40,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44947 states. [2021-06-05 22:52:40,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44947 to 20763. [2021-06-05 22:52:40,840 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 22:52:40,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20763 states to 20763 states and 89469 transitions. [2021-06-05 22:52:40,897 INFO L78 Accepts]: Start accepts. Automaton has 20763 states and 89469 transitions. Word has length 45 [2021-06-05 22:52:40,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:40,897 INFO L482 AbstractCegarLoop]: Abstraction has 20763 states and 89469 transitions. [2021-06-05 22:52:40,897 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 22:52:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 20763 states and 89469 transitions. [2021-06-05 22:52:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-05 22:52:40,931 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:40,931 INFO L554 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 22:52:41,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-06-05 22:52:41,133 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:41,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:41,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1505718650, now seen corresponding path program 22 times [2021-06-05 22:52:41,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:41,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763773468] [2021-06-05 22:52:41,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:41,362 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 22:52:41,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:41,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763773468] [2021-06-05 22:52:41,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763773468] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:41,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145557670] [2021-06-05 22:52:41,362 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 22:52:41,399 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-05 22:52:41,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:41,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-05 22:52:41,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:41,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:41,681 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 22:52:41,683 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:41,686 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:41,686 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 22:52:41,686 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:7 [2021-06-05 22:52:41,791 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:41,791 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 22:52:41,796 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 22:52:41,799 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-06-05 22:52:41,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 22:52:41,800 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:41,805 INFO L628 ElimStorePlain]: treesize reduction 12, result has 20.0 percent of original size [2021-06-05 22:52:41,805 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 22:52:41,805 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:3 [2021-06-05 22:52:41,817 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 22:52:41,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145557670] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:41,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:52:41,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 23 [2021-06-05 22:52:41,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489116109] [2021-06-05 22:52:41,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-05 22:52:41,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:52:41,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-05 22:52:41,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-06-05 22:52:41,817 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 22:52:42,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:52:42,996 INFO L93 Difference]: Finished difference Result 37037 states and 154685 transitions. [2021-06-05 22:52:42,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-05 22:52:42,996 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 22:52:42,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:52:43,041 INFO L225 Difference]: With dead ends: 37037 [2021-06-05 22:52:43,042 INFO L226 Difference]: Without dead ends: 20247 [2021-06-05 22:52:43,042 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 786.0ms TimeCoverageRelationStatistics Valid=323, Invalid=1839, Unknown=0, NotChecked=0, Total=2162 [2021-06-05 22:52:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20247 states. [2021-06-05 22:52:43,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20247 to 20145. [2021-06-05 22:52:43,493 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 22:52:43,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20145 states to 20145 states and 87214 transitions. [2021-06-05 22:52:43,556 INFO L78 Accepts]: Start accepts. Automaton has 20145 states and 87214 transitions. Word has length 47 [2021-06-05 22:52:43,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:52:43,556 INFO L482 AbstractCegarLoop]: Abstraction has 20145 states and 87214 transitions. [2021-06-05 22:52:43,556 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 22:52:43,556 INFO L276 IsEmpty]: Start isEmpty. Operand 20145 states and 87214 transitions. [2021-06-05 22:52:43,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-05 22:52:43,590 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:52:43,591 INFO L554 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 22:52:43,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2021-06-05 22:52:43,791 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:52:43,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:52:43,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1052185102, now seen corresponding path program 23 times [2021-06-05 22:52:43,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:52:43,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818262769] [2021-06-05 22:52:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:52:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:52:44,376 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 23 [2021-06-05 22:52:44,462 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 22:52:44,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:52:44,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818262769] [2021-06-05 22:52:44,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818262769] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:52:44,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156108096] [2021-06-05 22:52:44,463 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 22:52:44,506 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-06-05 22:52:44,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:52:44,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-05 22:52:44,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:52:44,535 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 22:52:44,536 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:44,539 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:52:44,539 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:52:44,539 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:10 [2021-06-05 22:52:45,455 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-06-05 22:52:45,937 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-06-05 22:52:46,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,429 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 22:52:46,430 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 22:52:46,439 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:46,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,528 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 22:52:46,529 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 22:52:46,536 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:46,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,624 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 22:52:46,624 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 22:52:46,634 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:46,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,733 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 22:52:46,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 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 22:52:46,742 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:46,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,845 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 22:52:46,845 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 22:52:46,860 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:46,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:46,975 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 22:52:46,975 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 22:52:46,994 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:47,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:47,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:47,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:47,098 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 22:52:47,099 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 22:52:47,105 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:47,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:47,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:47,195 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-06-05 22:52:47,195 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 22:52:47,200 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:48,206 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 293 DAG size of output: 247 [2021-06-05 22:52:48,207 INFO L628 ElimStorePlain]: treesize reduction 213, result has 79.8 percent of original size [2021-06-05 22:52:49,035 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 22:52:49,036 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 26 variables, input treesize:517, output treesize:1023 [2021-06-05 22:52:50,420 WARN L205 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2021-06-05 22:52:52,286 WARN L205 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 200 [2021-06-05 22:52:52,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,443 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,460 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 22:52:52,462 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:52,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,490 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 22:52:52,492 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:52,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,509 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,525 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 22:52:52,526 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:52,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,555 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 22:52:52,556 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:52,568 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,574 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,583 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 22:52:52,584 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:52,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,601 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,610 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 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 22:52:52,614 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:52,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,642 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 22:52:52,643 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:52,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,658 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:52:52,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:52:52,660 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 22:52:52,661 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-05 22:52:53,012 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 179 [2021-06-05 22:52:53,013 INFO L628 ElimStorePlain]: treesize reduction 12, result has 97.5 percent of original size [2021-06-05 22:52:53,057 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 22:52:53,058 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 26 variables, input treesize:553, output treesize:423 [2021-06-05 22:52:54,230 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-06-05 22:52:54,748 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-06-05 22:52:57,555 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 369 DAG size of output: 191 [2021-06-05 22:52:59,181 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 198 DAG size of output: 188 [2021-06-05 22:53:00,563 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 22:53:00,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,645 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-06-05 22:53:00,645 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 22:53:00,655 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:53:00,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:00,700 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:53:00,700 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 22:53:00,718 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-05 22:53:01,786 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 258 DAG size of output: 255 [2021-06-05 22:53:01,787 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.5 percent of original size [2021-06-05 22:53:01,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,833 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:53:01,833 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 22:53:01,855 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2021-06-05 22:53:01,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:01,894 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-06-05 22:53:01,895 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 22:53:01,898 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-05 22:53:02,834 WARN L205 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 249 [2021-06-05 22:53:02,835 INFO L628 ElimStorePlain]: treesize reduction 22, result has 97.5 percent of original size [2021-06-05 22:53:02,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,891 INFO L354 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-06-05 22:53:02,892 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 22:53:02,900 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-05 22:53:02,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:02,945 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:53:02,945 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 22:53:02,973 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-06-05 22:53:03,837 WARN L205 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 241 [2021-06-05 22:53:03,837 INFO L628 ElimStorePlain]: treesize reduction 9, result has 98.9 percent of original size [2021-06-05 22:53:03,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,882 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:53:03,883 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 22:53:03,895 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-06-05 22:53:03,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:03,937 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-06-05 22:53:03,937 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 22:53:03,942 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-05 22:53:04,692 WARN L205 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 221 [2021-06-05 22:53:04,692 INFO L628 ElimStorePlain]: treesize reduction 44, result has 94.2 percent of original size [2021-06-05 22:53:04,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,709 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:04,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,715 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:04,739 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:53:04,739 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 22:53:04,777 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2021-06-05 22:53:04,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,793 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:04,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:04,819 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-06-05 22:53:04,819 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 22:53:04,823 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-05 22:53:05,532 WARN L205 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 214 [2021-06-05 22:53:05,533 INFO L628 ElimStorePlain]: treesize reduction 36, result has 94.8 percent of original size [2021-06-05 22:53:05,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,551 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:05,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:05,582 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:53:05,582 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 22:53:05,618 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2021-06-05 22:53:05,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:05,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:05,661 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-06-05 22:53:05,661 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 22:53:05,662 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-05 22:53:06,294 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 206 [2021-06-05 22:53:06,295 INFO L628 ElimStorePlain]: treesize reduction 41, result has 93.7 percent of original size [2021-06-05 22:53:06,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,308 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:06,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:06,338 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:53:06,338 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 22:53:06,361 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 3 xjuncts. [2021-06-05 22:53:06,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:06,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:06,400 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-06-05 22:53:06,400 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 22:53:06,404 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-05 22:53:07,261 WARN L205 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 196 [2021-06-05 22:53:07,262 INFO L628 ElimStorePlain]: treesize reduction 62, result has 89.9 percent of original size [2021-06-05 22:53:07,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:07,287 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:07,321 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-06-05 22:53:07,321 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 22:53:07,335 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-05 22:53:07,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:53:07,352 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-05 22:53:07,372 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:53:07,372 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 22:53:07,402 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2021-06-05 22:53:07,891 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 184 [2021-06-05 22:53:07,892 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.0 percent of original size [2021-06-05 22:53:07,920 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 22:53:07,920 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 48 variables, input treesize:973, output treesize:12 [2021-06-05 22:53:07,934 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 22:53:07,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156108096] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:53:07,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 22:53:07,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 27 [2021-06-05 22:53:07,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290046650] [2021-06-05 22:53:07,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 22:53:07,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 22:53:07,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 22:53:07,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2021-06-05 22:53:07,935 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 22:53:26,384 WARN L205 SmtUtils]: Spent 5.95 s on a formula simplification. DAG size of input: 212 DAG size of output: 204 [2021-06-05 22:53:26,664 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2021-06-05 22:53:40,766 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2021-06-05 22:53:43,164 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2021-06-05 22:54:00,644 WARN L205 SmtUtils]: Spent 14.55 s on a formula simplification. DAG size of input: 391 DAG size of output: 383 [2021-06-05 22:54:03,553 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 181 [2021-06-05 22:54:04,935 WARN L205 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2021-06-05 22:54:07,991 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 183 [2021-06-05 22:54:09,627 WARN L205 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 350 [2021-06-05 22:54:17,329 WARN L205 SmtUtils]: Spent 5.71 s on a formula simplification. DAG size of input: 214 DAG size of output: 206 [2021-06-05 22:54:25,435 WARN L205 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 193 DAG size of output: 184 [2021-06-05 22:54:27,142 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 359 DAG size of output: 351 [2021-06-05 22:54:36,155 WARN L205 SmtUtils]: Spent 5.93 s on a formula simplification. DAG size of input: 215 DAG size of output: 207 [2021-06-05 22:54:39,987 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2021-06-05 22:54:41,380 WARN L205 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-05 22:54:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 22:54:41,990 INFO L93 Difference]: Finished difference Result 37534 states and 159289 transitions. [2021-06-05 22:54:41,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-06-05 22:54:41,990 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 22:54:41,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 22:54:42,035 INFO L225 Difference]: With dead ends: 37534 [2021-06-05 22:54:42,036 INFO L226 Difference]: Without dead ends: 20097 [2021-06-05 22:54:42,036 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 32 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 66537.7ms TimeCoverageRelationStatistics Valid=449, Invalid=2302, Unknown=5, NotChecked=0, Total=2756 [2021-06-05 22:54:42,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20097 states. [2021-06-05 22:54:42,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20097 to 20097. [2021-06-05 22:54:42,343 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 22:54:42,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20097 states to 20097 states and 87094 transitions. [2021-06-05 22:54:42,396 INFO L78 Accepts]: Start accepts. Automaton has 20097 states and 87094 transitions. Word has length 47 [2021-06-05 22:54:42,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 22:54:42,396 INFO L482 AbstractCegarLoop]: Abstraction has 20097 states and 87094 transitions. [2021-06-05 22:54:42,396 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 22:54:42,396 INFO L276 IsEmpty]: Start isEmpty. Operand 20097 states and 87094 transitions. [2021-06-05 22:54:42,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-06-05 22:54:42,428 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 22:54:42,428 INFO L554 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 22:54:42,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 22:54:42,633 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 22:54:42,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 22:54:42,633 INFO L82 PathProgramCache]: Analyzing trace with hash 790962414, now seen corresponding path program 24 times [2021-06-05 22:54:42,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 22:54:42,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972942969] [2021-06-05 22:54:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 22:54:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 22:54:43,052 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 22:54:43,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 22:54:43,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972942969] [2021-06-05 22:54:43,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972942969] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 22:54:43,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447350699] [2021-06-05 22:54:43,052 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 22:54:43,090 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-06-05 22:54:43,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-05 22:54:43,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-05 22:54:43,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 22:54:43,109 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 22:54:43,111 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:54:43,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-05 22:54:43,121 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-05 22:54:43,122 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:10 [2021-06-05 22:54:45,862 WARN L205 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 77 [2021-06-05 22:54:46,749 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-06-05 22:54:47,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,222 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:54:48,222 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:54:48,222 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 22:54:48,229 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:54:48,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,464 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:54:48,464 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:54:48,464 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 22:54:48,483 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-05 22:54:48,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,729 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:54:48,729 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:54:48,729 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 22:54:48,747 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-05 22:54:48,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:48,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,009 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:54:49,009 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:54:49,009 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 22:54:49,019 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-06-05 22:54:49,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,290 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:54:49,290 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:54:49,290 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 22:54:49,295 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-05 22:54:49,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,588 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:54:49,588 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:54:49,589 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 22:54:49,599 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-06-05 22:54:49,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,883 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:54:49,884 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:54:49,884 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 22:54:49,895 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-06-05 22:54:49,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:49,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:54:50,170 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:54:50,170 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:54:50,170 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 35 treesize of output 76 [2021-06-05 22:54:50,178 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-05 22:54:54,593 WARN L205 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 366 DAG size of output: 273 [2021-06-05 22:54:54,594 INFO L628 ElimStorePlain]: treesize reduction 605, result has 62.9 percent of original size [2021-06-05 22:54:55,425 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 22:54:55,426 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 26 variables, input treesize:483, output treesize:1035 [2021-06-05 22:54:57,423 WARN L205 SmtUtils]: Spent 885.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2021-06-05 22:55:09,284 WARN L205 SmtUtils]: Spent 5.97 s on a formula simplification. DAG size of input: 316 DAG size of output: 247 [2021-06-05 22:55:09,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:09,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:09,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:09,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:09,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:09,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:09,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:09,820 INFO L244 Elim1Store]: Index analysis took 139 ms [2021-06-05 22:55:10,258 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:10,259 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:10,259 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 22:55:10,270 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-05 22:55:10,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,440 INFO L244 Elim1Store]: Index analysis took 139 ms [2021-06-05 22:55:10,883 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:10,883 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:10,883 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 22:55:10,896 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-05 22:55:10,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:10,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:11,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:11,079 INFO L244 Elim1Store]: Index analysis took 153 ms [2021-06-05 22:55:11,511 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:11,511 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:11,511 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 22:55:11,521 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-05 22:55:11,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:11,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:11,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:11,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:11,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:11,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:11,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:11,696 INFO L244 Elim1Store]: Index analysis took 144 ms [2021-06-05 22:55:12,147 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:12,148 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:12,148 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 22:55:12,161 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-06-05 22:55:12,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,348 INFO L244 Elim1Store]: Index analysis took 153 ms [2021-06-05 22:55:12,832 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:12,832 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:12,832 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 22:55:12,850 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2021-06-05 22:55:12,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:12,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:13,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:13,038 INFO L244 Elim1Store]: Index analysis took 154 ms [2021-06-05 22:55:13,501 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:13,502 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:13,502 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 22:55:13,511 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-05 22:55:13,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:13,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:13,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:13,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:13,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:13,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:13,692 INFO L244 Elim1Store]: Index analysis took 144 ms [2021-06-05 22:55:14,184 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:14,185 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:14,185 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 22:55:14,202 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-06-05 22:55:14,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:14,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:14,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:14,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:14,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:14,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:14,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:14,403 INFO L244 Elim1Store]: Index analysis took 161 ms [2021-06-05 22:55:14,904 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:14,904 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:14,904 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 22:55:14,943 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2021-06-05 22:55:14,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:14,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:14,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,148 INFO L244 Elim1Store]: Index analysis took 163 ms [2021-06-05 22:55:15,707 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:15,708 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:15,708 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 22:55:15,736 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2021-06-05 22:55:15,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:15,951 INFO L244 Elim1Store]: Index analysis took 171 ms [2021-06-05 22:55:16,501 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:16,502 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:16,502 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 22:55:16,510 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-05 22:55:16,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:16,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:16,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:16,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:16,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:16,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:16,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:16,714 INFO L244 Elim1Store]: Index analysis took 162 ms [2021-06-05 22:55:17,225 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:17,226 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:17,226 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 22:55:17,232 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-05 22:55:17,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:17,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:17,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:17,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:17,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:17,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:17,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:17,438 INFO L244 Elim1Store]: Index analysis took 160 ms [2021-06-05 22:55:17,983 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:17,984 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:17,984 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 41 treesize of output 92 [2021-06-05 22:55:18,009 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2021-06-05 22:55:18,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,234 INFO L244 Elim1Store]: Index analysis took 179 ms [2021-06-05 22:55:18,838 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:18,838 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:18,838 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 22:55:18,858 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2021-06-05 22:55:18,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:18,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:19,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:19,080 INFO L244 Elim1Store]: Index analysis took 172 ms [2021-06-05 22:55:19,633 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:19,633 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:19,634 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 22:55:19,646 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-05 22:55:19,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:19,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:19,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:19,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:19,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:19,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:19,867 INFO L244 Elim1Store]: Index analysis took 170 ms [2021-06-05 22:55:20,433 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:20,433 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:20,433 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 22:55:20,474 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2021-06-05 22:55:20,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:20,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:20,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:20,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:20,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:20,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:20,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:20,738 INFO L244 Elim1Store]: Index analysis took 206 ms [2021-06-05 22:55:21,317 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:21,318 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:21,318 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 22:55:21,335 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2021-06-05 22:55:21,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:21,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:21,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:21,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:21,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:21,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:55:22,126 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:55:22,127 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:55:22,127 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 22:55:22,147 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-05 22:55:46,048 WARN L205 SmtUtils]: Spent 23.90 s on a formula simplification. DAG size of input: 882 DAG size of output: 654 [2021-06-05 22:55:46,049 INFO L628 ElimStorePlain]: treesize reduction 1881, result has 61.6 percent of original size [2021-06-05 22:55:47,401 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2021-06-05 22:55:48,789 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 22:55:48,790 INFO L247 ElimStorePlain]: Needed 18 recursive calls to eliminate 53 variables, input treesize:1127, output treesize:3174 [2021-06-05 22:56:18,451 WARN L205 SmtUtils]: Spent 17.80 s on a formula simplification that was a NOOP. DAG size: 856 [2021-06-05 22:57:13,492 WARN L205 SmtUtils]: Spent 39.88 s on a formula simplification. DAG size of input: 1074 DAG size of output: 617 [2021-06-05 22:57:14,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:14,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:14,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:14,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:14,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:14,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:15,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:15,042 INFO L244 Elim1Store]: Index analysis took 238 ms [2021-06-05 22:57:15,762 WARN L205 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:15,762 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:15,762 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 22:57:15,781 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:15,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:15,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:15,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:15,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:15,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:15,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:15,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:16,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:16,056 INFO L244 Elim1Store]: Index analysis took 200 ms [2021-06-05 22:57:16,437 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:16,437 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:16,437 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 22:57:16,441 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:16,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:16,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:16,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:16,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:16,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:16,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:16,747 INFO L244 Elim1Store]: Index analysis took 227 ms [2021-06-05 22:57:17,439 WARN L205 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:17,442 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:17,442 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 22:57:17,466 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:17,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:17,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:17,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:17,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:17,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:17,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:17,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:17,784 INFO L244 Elim1Store]: Index analysis took 236 ms [2021-06-05 22:57:18,473 WARN L205 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:18,473 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:18,473 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 22:57:18,495 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:18,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:18,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:18,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:18,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:18,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:18,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:18,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:18,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:18,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:18,802 INFO L244 Elim1Store]: Index analysis took 223 ms [2021-06-05 22:57:19,218 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:19,219 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:19,219 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 22:57:19,224 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:19,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:19,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:19,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:19,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:19,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:19,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:19,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:19,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:19,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:19,543 INFO L244 Elim1Store]: Index analysis took 234 ms [2021-06-05 22:57:19,919 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:19,919 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:19,919 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 22:57:19,925 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:20,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:20,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:20,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:20,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:20,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:20,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:20,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:20,256 INFO L244 Elim1Store]: Index analysis took 239 ms [2021-06-05 22:57:20,956 WARN L205 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:20,956 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:20,956 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 22:57:20,978 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:21,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:21,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:21,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:21,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:21,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:21,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:21,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:21,301 INFO L244 Elim1Store]: Index analysis took 233 ms [2021-06-05 22:57:22,035 WARN L205 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:22,035 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:22,035 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 22:57:22,053 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:22,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,408 INFO L244 Elim1Store]: Index analysis took 256 ms [2021-06-05 22:57:22,837 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:22,837 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:22,838 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 22:57:22,843 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:22,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:22,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:23,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:23,172 INFO L244 Elim1Store]: Index analysis took 232 ms [2021-06-05 22:57:23,875 WARN L205 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:23,876 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:23,876 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 22:57:23,882 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:23,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:23,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:24,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:24,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:24,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:24,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:24,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:24,353 INFO L244 Elim1Store]: Index analysis took 368 ms [2021-06-05 22:57:25,138 WARN L205 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:25,139 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:25,139 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 22:57:25,156 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:25,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:25,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:25,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:25,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:25,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:25,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:25,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:25,523 INFO L244 Elim1Store]: Index analysis took 264 ms [2021-06-05 22:57:26,392 WARN L205 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:26,392 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:26,392 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 22:57:26,410 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:26,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:26,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:26,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:26,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:26,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:26,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:26,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:26,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:26,780 INFO L244 Elim1Store]: Index analysis took 265 ms [2021-06-05 22:57:27,231 WARN L205 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:27,231 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:27,232 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 22:57:27,239 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:27,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:27,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:27,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:27,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:27,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:27,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:27,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:27,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:27,590 INFO L244 Elim1Store]: Index analysis took 241 ms [2021-06-05 22:57:28,050 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:28,050 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:28,050 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 41 treesize of output 68 [2021-06-05 22:57:28,056 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:28,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:28,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:28,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:28,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:28,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:28,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:28,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:28,434 INFO L244 Elim1Store]: Index analysis took 271 ms [2021-06-05 22:57:29,419 WARN L205 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:29,419 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:29,419 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 22:57:29,436 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:29,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:29,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:29,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:29,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:29,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:29,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:29,881 INFO L244 Elim1Store]: Index analysis took 332 ms [2021-06-05 22:57:30,821 WARN L205 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:30,822 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:30,822 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 22:57:30,836 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:30,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:30,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:30,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:31,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:31,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:31,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:31,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:31,307 INFO L244 Elim1Store]: Index analysis took 350 ms [2021-06-05 22:57:32,264 WARN L205 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:32,265 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:32,265 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 92 [2021-06-05 22:57:32,280 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:32,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:32,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:32,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:32,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:32,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:32,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:32,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:32,647 INFO L244 Elim1Store]: Index analysis took 251 ms [2021-06-05 22:57:33,538 WARN L205 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:33,539 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:33,539 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 22:57:33,556 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:33,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:33,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:33,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:33,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:33,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:33,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:33,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:33,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:33,953 INFO L244 Elim1Store]: Index analysis took 279 ms [2021-06-05 22:57:34,749 WARN L205 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:57:34,749 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:57:34,749 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 22:57:34,755 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:34,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:34,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:34,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:34,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:34,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:34,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:35,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:35,141 INFO L244 Elim1Store]: Index analysis took 264 ms [2021-06-05 22:57:36,021 WARN L205 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:36,021 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:36,021 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 22:57:36,040 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:36,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:36,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:36,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:36,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:36,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:36,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:36,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:36,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:36,420 INFO L244 Elim1Store]: Index analysis took 255 ms [2021-06-05 22:57:36,895 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:36,895 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:36,895 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 22:57:36,899 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:37,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:37,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:37,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:37,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:37,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:37,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:37,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:37,365 INFO L244 Elim1Store]: Index analysis took 336 ms [2021-06-05 22:57:38,307 WARN L205 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:38,307 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:38,307 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 22:57:38,324 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:38,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:38,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:38,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:38,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:38,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:38,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:38,752 INFO L244 Elim1Store]: Index analysis took 251 ms [2021-06-05 22:57:39,323 WARN L205 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:39,323 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:39,324 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 22:57:39,329 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:39,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:39,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:39,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:39,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:39,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:39,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:39,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:39,699 INFO L244 Elim1Store]: Index analysis took 270 ms [2021-06-05 22:57:40,651 WARN L205 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:40,652 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:40,652 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 39 treesize of output 92 [2021-06-05 22:57:40,664 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:40,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:40,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:40,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:40,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:40,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:40,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:41,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:41,059 INFO L244 Elim1Store]: Index analysis took 287 ms [2021-06-05 22:57:41,971 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:41,971 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:41,971 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 22:57:41,997 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:42,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:42,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:42,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:42,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:42,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:42,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:42,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:42,386 INFO L244 Elim1Store]: Index analysis took 275 ms [2021-06-05 22:57:43,321 WARN L205 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:43,321 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:43,322 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 22:57:43,342 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:43,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:43,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:43,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:43,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:43,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:43,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:43,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:43,744 INFO L244 Elim1Store]: Index analysis took 288 ms [2021-06-05 22:57:44,759 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:44,759 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:44,759 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 22:57:44,789 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:44,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:44,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:44,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:44,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:44,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:45,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:45,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:45,210 INFO L244 Elim1Store]: Index analysis took 304 ms [2021-06-05 22:57:45,696 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:45,696 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:45,696 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 22:57:45,705 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:45,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:45,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:45,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:45,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:45,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:45,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:46,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:46,097 INFO L244 Elim1Store]: Index analysis took 277 ms [2021-06-05 22:57:47,203 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:47,204 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:47,204 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 22:57:47,221 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:47,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:47,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:47,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:47,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:47,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:47,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:47,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:47,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:47,613 INFO L244 Elim1Store]: Index analysis took 268 ms [2021-06-05 22:57:48,587 WARN L205 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:57:48,588 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:57:48,588 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 22:57:48,597 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:48,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:48,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:48,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:48,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:48,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:49,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:49,010 INFO L244 Elim1Store]: Index analysis took 281 ms [2021-06-05 22:57:50,213 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:50,213 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:50,213 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 22:57:50,229 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:50,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:50,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:50,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:50,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:50,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:50,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:50,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:50,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:50,635 INFO L244 Elim1Store]: Index analysis took 279 ms [2021-06-05 22:57:51,183 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:51,183 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:51,184 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 22:57:51,194 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:51,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:51,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:51,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:51,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:51,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:51,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:51,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:51,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:51,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:51,674 INFO L244 Elim1Store]: Index analysis took 351 ms [2021-06-05 22:57:52,230 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:52,230 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:52,231 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 22:57:52,234 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:52,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:52,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:52,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:52,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:52,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:52,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:52,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:52,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:52,654 INFO L244 Elim1Store]: Index analysis took 279 ms [2021-06-05 22:57:53,196 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:53,196 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:53,196 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 22:57:53,200 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:53,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:53,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:53,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:53,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:53,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:53,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:53,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:53,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:53,624 INFO L244 Elim1Store]: Index analysis took 287 ms [2021-06-05 22:57:54,224 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:57:54,224 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:57:54,224 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 22:57:54,228 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:54,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:54,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:54,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:54,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:54,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:54,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:54,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:54,673 INFO L244 Elim1Store]: Index analysis took 302 ms [2021-06-05 22:57:55,986 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:55,986 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:55,986 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 22:57:56,005 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:56,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:56,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:56,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:56,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:56,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:56,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:56,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:56,490 INFO L244 Elim1Store]: Index analysis took 330 ms [2021-06-05 22:57:57,898 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:57,898 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:57,899 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 22:57:57,906 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-06-05 22:57:58,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:58,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:58,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:58,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:58,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:58,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:58,332 INFO L244 Elim1Store]: Index analysis took 281 ms [2021-06-05 22:57:59,394 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:57:59,395 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:57:59,395 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 22:57:59,418 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 2 xjuncts. [2021-06-05 22:57:59,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:59,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:59,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:59,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:59,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:59,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:59,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:57:59,904 INFO L244 Elim1Store]: Index analysis took 330 ms [2021-06-05 22:58:01,274 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:58:01,274 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:58:01,274 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 22:58:01,293 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 2 xjuncts. [2021-06-05 22:58:01,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:01,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:01,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:01,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:01,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:01,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:01,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:01,800 INFO L244 Elim1Store]: Index analysis took 348 ms [2021-06-05 22:58:03,422 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:58:03,423 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:58:03,423 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 37 treesize of output 92 [2021-06-05 22:58:03,431 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:03,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:03,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:03,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:03,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:03,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:03,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:03,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:03,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:03,902 INFO L244 Elim1Store]: Index analysis took 306 ms [2021-06-05 22:58:04,502 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:58:04,502 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:58:04,502 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 22:58:04,505 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:04,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:04,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:04,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:04,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:04,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:04,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:05,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:05,017 INFO L244 Elim1Store]: Index analysis took 342 ms [2021-06-05 22:58:06,158 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:58:06,158 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:58:06,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 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 22:58:06,168 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:06,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:06,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:06,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:06,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:06,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:06,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:06,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:06,764 INFO L244 Elim1Store]: Index analysis took 435 ms [2021-06-05 22:58:08,287 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:58:08,287 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:58:08,287 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 22:58:08,300 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:08,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:08,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:08,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:08,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:08,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:08,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:08,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:08,808 INFO L244 Elim1Store]: Index analysis took 327 ms [2021-06-05 22:58:10,456 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:58:10,457 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:58:10,457 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 22:58:10,469 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:10,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:10,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:10,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:10,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:10,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:10,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:10,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:10,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:10,973 INFO L244 Elim1Store]: Index analysis took 332 ms [2021-06-05 22:58:11,605 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:58:11,606 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:58:11,606 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 22:58:11,610 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:11,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:11,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:11,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:11,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:11,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:11,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:11,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:12,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:12,092 INFO L244 Elim1Store]: Index analysis took 309 ms [2021-06-05 22:58:12,791 WARN L205 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:58:12,792 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:58:12,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 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 22:58:12,802 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:12,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:12,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:13,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:13,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:13,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:13,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:13,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:13,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:13,324 INFO L244 Elim1Store]: Index analysis took 348 ms [2021-06-05 22:58:14,598 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:58:14,598 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:58:14,598 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 22:58:14,612 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:14,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:14,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:14,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:14,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:14,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:14,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:15,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:15,116 INFO L244 Elim1Store]: Index analysis took 329 ms [2021-06-05 22:58:16,554 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:58:16,554 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:58:16,555 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 22:58:16,564 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:16,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:16,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:16,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:16,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:16,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:17,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:17,079 INFO L244 Elim1Store]: Index analysis took 333 ms [2021-06-05 22:58:18,419 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:58:18,420 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:58:18,420 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 22:58:18,441 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 2 xjuncts. [2021-06-05 22:58:18,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:18,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:18,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:18,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:18,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:18,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:18,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:18,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:18,944 INFO L244 Elim1Store]: Index analysis took 308 ms [2021-06-05 22:58:19,979 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-05 22:58:19,979 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-06-05 22:58:19,979 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 22:58:19,985 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:20,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:20,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:20,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:20,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:20,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:20,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:20,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:20,513 INFO L244 Elim1Store]: Index analysis took 335 ms [2021-06-05 22:58:21,884 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-06-05 22:58:21,884 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-06-05 22:58:21,884 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 22:58:21,895 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-06-05 22:58:22,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:22,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:22,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:22,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:22,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:22,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-05 22:58:22,267 INFO L244 Elim1Store]: Index analysis took 173 ms [2021-06-05 22:58:23,582 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-05 22:58:23,583 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-06-05 22:58:23,583 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 22:58:23,593 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-06-05 23:01:14,464 WARN L205 SmtUtils]: Spent 2.85 m on a formula simplification. DAG size of input: 2382 DAG size of output: 1839 [2021-06-05 23:01:14,467 INFO L628 ElimStorePlain]: treesize reduction 4504, result has 63.6 percent of original size [2021-06-05 23:01:21,000 INFO L550 ElimStorePlain]: Start of recursive call 1: 157 dim-0 vars, 1 dim-1 vars, End of recursive call: 187 dim-0 vars, and 52 xjuncts. [2021-06-05 23:01:21,001 INFO L247 ElimStorePlain]: Needed 53 recursive calls to eliminate 158 variables, input treesize:3564, output treesize:8566 [2021-06-05 23:01:21,125 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 2327 DAG size of output: 2327 [2021-06-05 23:02:08,130 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-05 23:02:08,131 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-06-05 23:02:08,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable821 [2021-06-05 23:02:08,333 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:643) 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:364) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) 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 23:02:08,339 INFO L168 Benchmark]: Toolchain (without parser) took 594474.25 ms. Allocated memory was 350.2 MB in the beginning and 7.6 GB in the end (delta: 7.3 GB). Free memory was 329.7 MB in the beginning and 4.0 GB in the end (delta: -3.6 GB). Peak memory consumption was 3.6 GB. Max. memory is 16.0 GB. [2021-06-05 23:02:08,339 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 350.2 MB. Free memory was 330.9 MB in the beginning and 330.8 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 23:02:08,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.77 ms. Allocated memory is still 350.2 MB. Free memory was 329.6 MB in the beginning and 328.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 23:02:08,339 INFO L168 Benchmark]: Boogie Preprocessor took 10.64 ms. Allocated memory is still 350.2 MB. Free memory was 328.1 MB in the beginning and 327.1 MB in the end (delta: 985.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 23:02:08,340 INFO L168 Benchmark]: RCFGBuilder took 207.38 ms. Allocated memory is still 350.2 MB. Free memory was 327.1 MB in the beginning and 313.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-05 23:02:08,340 INFO L168 Benchmark]: TraceAbstraction took 594228.46 ms. Allocated memory was 350.2 MB in the beginning and 7.6 GB in the end (delta: 7.3 GB). Free memory was 312.8 MB in the beginning and 4.0 GB in the end (delta: -3.7 GB). Peak memory consumption was 3.6 GB. Max. memory is 16.0 GB. [2021-06-05 23:02:08,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 350.2 MB. Free memory was 330.9 MB in the beginning and 330.8 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.77 ms. Allocated memory is still 350.2 MB. Free memory was 329.6 MB in the beginning and 328.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.64 ms. Allocated memory is still 350.2 MB. Free memory was 328.1 MB in the beginning and 327.1 MB in the end (delta: 985.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 207.38 ms. Allocated memory is still 350.2 MB. Free memory was 327.1 MB in the beginning and 313.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 594228.46 ms. Allocated memory was 350.2 MB in the beginning and 7.6 GB in the end (delta: 7.3 GB). Free memory was 312.8 MB in the beginning and 4.0 GB in the end (delta: -3.7 GB). Peak memory consumption was 3.6 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...