/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/counter-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 15:23:01,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 15:23:01,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 15:23:01,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-03 15:23:01,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-05-03 15:23:01,630 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 15:23:01,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 15:23:01,631 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 15:23:01,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 15:23:01,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 15:23:01,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 15:23:01,632 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 15:23:01,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 15:23:01,633 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 15:23:01,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 15:23:01,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 15:23:01,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 15:23:01,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 15:23:01,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 15:23:01,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 15:23:01,634 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 15:23:01,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 15:23:01,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 15:23:01,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 15:23:01,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 15:23:01,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 15:23:01,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 15:23:01,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 15:23:01,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 15:23:01,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 15:23:01,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 15:23:01,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 15:23:01,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 15:23:01,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 15:23:01,636 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 15:23:01,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 15:23:01,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 15:23:01,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 15:23:01,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 15:23:01,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 15:23:01,989 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 15:23:01,992 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 15:23:01,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl [2021-05-03 15:23:01,993 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl' [2021-05-03 15:23:02,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 15:23:02,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 15:23:02,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 15:23:02,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 15:23:02,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 15:23:02,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/1) ... [2021-05-03 15:23:02,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/1) ... [2021-05-03 15:23:02,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 15:23:02,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 15:23:02,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 15:23:02,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 15:23:02,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/1) ... [2021-05-03 15:23:02,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/1) ... [2021-05-03 15:23:02,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/1) ... [2021-05-03 15:23:02,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/1) ... [2021-05-03 15:23:02,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/1) ... [2021-05-03 15:23:02,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/1) ... [2021-05-03 15:23:02,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/1) ... [2021-05-03 15:23:02,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 15:23:02,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 15:23:02,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 15:23:02,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 15:23:02,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 15:23:02,176 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 15:23:02,177 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 15:23:02,177 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 15:23:02,177 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 15:23:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 15:23:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 15:23:02,178 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 15:23:02,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 15:23:02,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 15:23:02,179 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 15:23:02,417 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 15:23:02,417 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-03 15:23:02,419 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 03:23:02 BoogieIcfgContainer [2021-05-03 15:23:02,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 15:23:02,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 15:23:02,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 15:23:02,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 15:23:02,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 03:23:02" (1/2) ... [2021-05-03 15:23:02,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e96b4 and model type counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 03:23:02, skipping insertion in model container [2021-05-03 15:23:02,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 03:23:02" (2/2) ... [2021-05-03 15:23:02,425 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-fun.wvr.bpl [2021-05-03 15:23:02,437 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 15:23:02,437 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 15:23:02,440 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 15:23:02,441 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 15:23:02,508 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-05-03 15:23:02,537 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-03 15:23:02,567 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 15:23:02,568 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 15:23:02,568 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 15:23:02,568 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 15:23:02,568 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 15:23:02,568 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 15:23:02,568 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 15:23:02,568 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 15:23:02,585 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 22 transitions, 60 flow [2021-05-03 15:23:02,599 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 34 states, 32 states have (on average 1.8125) internal successors, (58), 33 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:02,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.8125) internal successors, (58), 33 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:02,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-03 15:23:02,606 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:02,606 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:02,607 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:02,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:02,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1451168716, now seen corresponding path program 1 times [2021-05-03 15:23:02,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:02,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752644197] [2021-05-03 15:23:02,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:02,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:02,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752644197] [2021-05-03 15:23:02,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 15:23:02,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 15:23:02,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838342146] [2021-05-03 15:23:02,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-03 15:23:02,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:02,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-03 15:23:02,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 15:23:02,783 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.8125) internal successors, (58), 33 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:02,817 INFO L93 Difference]: Finished difference Result 57 states and 105 transitions. [2021-05-03 15:23:02,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 15:23:02,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2021-05-03 15:23:02,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:02,829 INFO L225 Difference]: With dead ends: 57 [2021-05-03 15:23:02,829 INFO L226 Difference]: Without dead ends: 50 [2021-05-03 15:23:02,831 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 15:23:02,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-05-03 15:23:02,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2021-05-03 15:23:02,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.85) internal successors, (74), 40 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) [2021-05-03 15:23:02,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 74 transitions. [2021-05-03 15:23:02,867 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 74 transitions. Word has length 14 [2021-05-03 15:23:02,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:02,868 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 74 transitions. [2021-05-03 15:23:02,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:02,868 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions. [2021-05-03 15:23:02,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-03 15:23:02,869 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:02,869 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:02,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 15:23:02,870 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:02,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:02,875 INFO L82 PathProgramCache]: Analyzing trace with hash -334624586, now seen corresponding path program 1 times [2021-05-03 15:23:02,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:02,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828496915] [2021-05-03 15:23:02,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:02,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:02,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828496915] [2021-05-03 15:23:02,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236314098] [2021-05-03 15:23:02,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:03,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 15:23:03,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:03,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:03,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-05-03 15:23:03,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066584757] [2021-05-03 15:23:03,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-03 15:23:03,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:03,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-03 15:23:03,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-05-03 15:23:03,187 INFO L87 Difference]: Start difference. First operand 41 states and 74 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:03,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:03,319 INFO L93 Difference]: Finished difference Result 68 states and 120 transitions. [2021-05-03 15:23:03,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 15:23:03,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-05-03 15:23:03,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:03,323 INFO L225 Difference]: With dead ends: 68 [2021-05-03 15:23:03,323 INFO L226 Difference]: Without dead ends: 68 [2021-05-03 15:23:03,325 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 142.8ms TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:03,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-05-03 15:23:03,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 41. [2021-05-03 15:23:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.9) internal successors, (76), 40 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) [2021-05-03 15:23:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 76 transitions. [2021-05-03 15:23:03,339 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 76 transitions. Word has length 16 [2021-05-03 15:23:03,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:03,339 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 76 transitions. [2021-05-03 15:23:03,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:03,340 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 76 transitions. [2021-05-03 15:23:03,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-03 15:23:03,340 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:03,341 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:03,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-03 15:23:03,566 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:03,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:03,567 INFO L82 PathProgramCache]: Analyzing trace with hash 368180722, now seen corresponding path program 1 times [2021-05-03 15:23:03,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:03,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76969536] [2021-05-03 15:23:03,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:03,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:03,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76969536] [2021-05-03 15:23:03,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 15:23:03,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-03 15:23:03,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65087698] [2021-05-03 15:23:03,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 15:23:03,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:03,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 15:23:03,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-03 15:23:03,648 INFO L87 Difference]: Start difference. First operand 41 states and 76 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:03,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:03,763 INFO L93 Difference]: Finished difference Result 71 states and 125 transitions. [2021-05-03 15:23:03,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 15:23:03,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2021-05-03 15:23:03,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:03,764 INFO L225 Difference]: With dead ends: 71 [2021-05-03 15:23:03,765 INFO L226 Difference]: Without dead ends: 66 [2021-05-03 15:23:03,765 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 47.8ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-05-03 15:23:03,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-05-03 15:23:03,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 49. [2021-05-03 15:23:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.8958333333333333) internal successors, (91), 48 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 91 transitions. [2021-05-03 15:23:03,770 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 91 transitions. Word has length 16 [2021-05-03 15:23:03,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:03,770 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 91 transitions. [2021-05-03 15:23:03,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:03,771 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 91 transitions. [2021-05-03 15:23:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-03 15:23:03,771 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:03,771 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:03,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-03 15:23:03,772 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:03,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:03,772 INFO L82 PathProgramCache]: Analyzing trace with hash -896747138, now seen corresponding path program 2 times [2021-05-03 15:23:03,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:03,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188607734] [2021-05-03 15:23:03,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:03,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188607734] [2021-05-03 15:23:03,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 15:23:03,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-03 15:23:03,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788665104] [2021-05-03 15:23:03,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 15:23:03,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:03,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 15:23:03,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-03 15:23:03,814 INFO L87 Difference]: Start difference. First operand 49 states and 91 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:03,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:03,856 INFO L93 Difference]: Finished difference Result 51 states and 94 transitions. [2021-05-03 15:23:03,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 15:23:03,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2021-05-03 15:23:03,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:03,858 INFO L225 Difference]: With dead ends: 51 [2021-05-03 15:23:03,858 INFO L226 Difference]: Without dead ends: 51 [2021-05-03 15:23:03,910 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.2ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-05-03 15:23:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-05-03 15:23:03,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2021-05-03 15:23:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.880952380952381) internal successors, (79), 42 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:03,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 79 transitions. [2021-05-03 15:23:03,917 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 79 transitions. Word has length 16 [2021-05-03 15:23:03,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:03,917 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 79 transitions. [2021-05-03 15:23:03,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:03,917 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 79 transitions. [2021-05-03 15:23:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-03 15:23:03,918 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:03,918 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:03,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-03 15:23:03,918 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:03,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:03,919 INFO L82 PathProgramCache]: Analyzing trace with hash 2014322076, now seen corresponding path program 2 times [2021-05-03 15:23:03,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:03,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116846123] [2021-05-03 15:23:03,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:03,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:03,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116846123] [2021-05-03 15:23:03,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 15:23:03,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-03 15:23:03,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700488927] [2021-05-03 15:23:03,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 15:23:03,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:03,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 15:23:03,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-03 15:23:03,963 INFO L87 Difference]: Start difference. First operand 43 states and 79 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:04,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:04,028 INFO L93 Difference]: Finished difference Result 51 states and 92 transitions. [2021-05-03 15:23:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 15:23:04,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2021-05-03 15:23:04,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:04,029 INFO L225 Difference]: With dead ends: 51 [2021-05-03 15:23:04,029 INFO L226 Difference]: Without dead ends: 49 [2021-05-03 15:23:04,029 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 48.9ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-05-03 15:23:04,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-05-03 15:23:04,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-05-03 15:23:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.8571428571428572) internal successors, (78), 42 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:04,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 78 transitions. [2021-05-03 15:23:04,040 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 78 transitions. Word has length 16 [2021-05-03 15:23:04,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:04,041 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 78 transitions. [2021-05-03 15:23:04,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:04,041 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2021-05-03 15:23:04,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-05-03 15:23:04,042 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:04,042 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:04,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-03 15:23:04,042 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:04,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:04,043 INFO L82 PathProgramCache]: Analyzing trace with hash -374734348, now seen corresponding path program 1 times [2021-05-03 15:23:04,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:04,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252291026] [2021-05-03 15:23:04,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:04,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:04,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252291026] [2021-05-03 15:23:04,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701571815] [2021-05-03 15:23:04,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:04,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:04,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:04,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-05-03 15:23:04,196 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:04,198 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:04,199 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:04,199 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-05-03 15:23:04,237 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 [2021-05-03 15:23:04,238 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:04,240 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:04,241 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:04,241 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-05-03 15:23:04,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:04,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:04,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-05-03 15:23:04,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012925630] [2021-05-03 15:23:04,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 15:23:04,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:04,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 15:23:04,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 15:23:04,252 INFO L87 Difference]: Start difference. First operand 43 states and 78 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:04,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:04,275 INFO L93 Difference]: Finished difference Result 99 states and 186 transitions. [2021-05-03 15:23:04,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 15:23:04,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-05-03 15:23:04,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:04,278 INFO L225 Difference]: With dead ends: 99 [2021-05-03 15:23:04,279 INFO L226 Difference]: Without dead ends: 92 [2021-05-03 15:23:04,279 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 15:23:04,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-05-03 15:23:04,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 69. [2021-05-03 15:23:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 2.0441176470588234) internal successors, (139), 68 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:04,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 139 transitions. [2021-05-03 15:23:04,283 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 139 transitions. Word has length 18 [2021-05-03 15:23:04,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:04,284 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 139 transitions. [2021-05-03 15:23:04,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:04,284 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 139 transitions. [2021-05-03 15:23:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-05-03 15:23:04,284 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:04,285 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:04,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:04,501 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:04,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1555556108, now seen corresponding path program 2 times [2021-05-03 15:23:04,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:04,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372046484] [2021-05-03 15:23:04,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:04,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372046484] [2021-05-03 15:23:04,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 15:23:04,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-03 15:23:04,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208671939] [2021-05-03 15:23:04,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-03 15:23:04,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:04,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-03 15:23:04,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 15:23:04,538 INFO L87 Difference]: Start difference. First operand 69 states and 139 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:04,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:04,556 INFO L93 Difference]: Finished difference Result 118 states and 233 transitions. [2021-05-03 15:23:04,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 15:23:04,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-05-03 15:23:04,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:04,559 INFO L225 Difference]: With dead ends: 118 [2021-05-03 15:23:04,559 INFO L226 Difference]: Without dead ends: 111 [2021-05-03 15:23:04,559 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-03 15:23:04,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-05-03 15:23:04,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 86. [2021-05-03 15:23:04,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 2.1294117647058823) internal successors, (181), 85 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:04,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 181 transitions. [2021-05-03 15:23:04,576 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 181 transitions. Word has length 18 [2021-05-03 15:23:04,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:04,576 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 181 transitions. [2021-05-03 15:23:04,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:04,577 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 181 transitions. [2021-05-03 15:23:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-03 15:23:04,580 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:04,581 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:04,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-03 15:23:04,581 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:04,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:04,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1351545482, now seen corresponding path program 3 times [2021-05-03 15:23:04,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:04,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052248274] [2021-05-03 15:23:04,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:04,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:04,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052248274] [2021-05-03 15:23:04,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815792945] [2021-05-03 15:23:04,661 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:04,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-03 15:23:04,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:04,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 15:23:04,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:04,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:04,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-05-03 15:23:04,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907469955] [2021-05-03 15:23:04,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-03 15:23:04,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:04,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-03 15:23:04,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:04,802 INFO L87 Difference]: Start difference. First operand 86 states and 181 transitions. Second operand has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 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) [2021-05-03 15:23:05,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:05,118 INFO L93 Difference]: Finished difference Result 213 states and 407 transitions. [2021-05-03 15:23:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 15:23:05,118 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 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 20 [2021-05-03 15:23:05,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:05,120 INFO L225 Difference]: With dead ends: 213 [2021-05-03 15:23:05,120 INFO L226 Difference]: Without dead ends: 213 [2021-05-03 15:23:05,120 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 279.9ms TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2021-05-03 15:23:05,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-05-03 15:23:05,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 88. [2021-05-03 15:23:05,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 2.1494252873563218) internal successors, (187), 87 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:05,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 187 transitions. [2021-05-03 15:23:05,126 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 187 transitions. Word has length 20 [2021-05-03 15:23:05,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:05,126 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 187 transitions. [2021-05-03 15:23:05,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 13 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) [2021-05-03 15:23:05,127 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 187 transitions. [2021-05-03 15:23:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-03 15:23:05,127 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:05,127 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:05,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:05,341 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:05,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:05,341 INFO L82 PathProgramCache]: Analyzing trace with hash -265509966, now seen corresponding path program 4 times [2021-05-03 15:23:05,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:05,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764939172] [2021-05-03 15:23:05,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:05,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764939172] [2021-05-03 15:23:05,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669137626] [2021-05-03 15:23:05,417 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:05,448 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:23:05,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:05,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 15:23:05,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:05,577 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:05,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:05,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-05-03 15:23:05,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434913237] [2021-05-03 15:23:05,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-03 15:23:05,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:05,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-03 15:23:05,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-05-03 15:23:05,579 INFO L87 Difference]: Start difference. First operand 88 states and 187 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:05,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:05,919 INFO L93 Difference]: Finished difference Result 257 states and 488 transitions. [2021-05-03 15:23:05,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 15:23:05,920 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-05-03 15:23:05,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:05,921 INFO L225 Difference]: With dead ends: 257 [2021-05-03 15:23:05,921 INFO L226 Difference]: Without dead ends: 234 [2021-05-03 15:23:05,922 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 309.4ms TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2021-05-03 15:23:05,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-05-03 15:23:05,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 108. [2021-05-03 15:23:05,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 2.149532710280374) internal successors, (230), 107 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:05,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 230 transitions. [2021-05-03 15:23:05,928 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 230 transitions. Word has length 20 [2021-05-03 15:23:05,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:05,928 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 230 transitions. [2021-05-03 15:23:05,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 230 transitions. [2021-05-03 15:23:05,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-03 15:23:05,929 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:05,929 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:06,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:06,152 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:06,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:06,152 INFO L82 PathProgramCache]: Analyzing trace with hash -698013310, now seen corresponding path program 5 times [2021-05-03 15:23:06,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:06,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721773389] [2021-05-03 15:23:06,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:06,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:06,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721773389] [2021-05-03 15:23:06,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006625674] [2021-05-03 15:23:06,202 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:06,232 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-05-03 15:23:06,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:06,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 15:23:06,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:06,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:06,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:06,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-05-03 15:23:06,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063896211] [2021-05-03 15:23:06,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-03 15:23:06,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:06,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-03 15:23:06,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-05-03 15:23:06,344 INFO L87 Difference]: Start difference. First operand 108 states and 230 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:06,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:06,618 INFO L93 Difference]: Finished difference Result 236 states and 462 transitions. [2021-05-03 15:23:06,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 15:23:06,619 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-05-03 15:23:06,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:06,620 INFO L225 Difference]: With dead ends: 236 [2021-05-03 15:23:06,620 INFO L226 Difference]: Without dead ends: 236 [2021-05-03 15:23:06,620 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 223.3ms TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:23:06,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-05-03 15:23:06,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 131. [2021-05-03 15:23:06,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 2.230769230769231) internal successors, (290), 130 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 290 transitions. [2021-05-03 15:23:06,630 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 290 transitions. Word has length 20 [2021-05-03 15:23:06,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:06,630 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 290 transitions. [2021-05-03 15:23:06,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:06,631 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 290 transitions. [2021-05-03 15:23:06,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-03 15:23:06,633 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:06,633 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:06,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-05-03 15:23:06,857 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:06,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:06,857 INFO L82 PathProgramCache]: Analyzing trace with hash -2081911392, now seen corresponding path program 6 times [2021-05-03 15:23:06,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:06,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071464629] [2021-05-03 15:23:06,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:06,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071464629] [2021-05-03 15:23:06,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533798683] [2021-05-03 15:23:06,904 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:06,936 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-05-03 15:23:06,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:06,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 15:23:06,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:07,055 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:07,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:07,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-05-03 15:23:07,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277071305] [2021-05-03 15:23:07,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-03 15:23:07,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:07,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-03 15:23:07,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-05-03 15:23:07,060 INFO L87 Difference]: Start difference. First operand 131 states and 290 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:07,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:07,377 INFO L93 Difference]: Finished difference Result 208 states and 429 transitions. [2021-05-03 15:23:07,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 15:23:07,377 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-05-03 15:23:07,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:07,381 INFO L225 Difference]: With dead ends: 208 [2021-05-03 15:23:07,381 INFO L226 Difference]: Without dead ends: 204 [2021-05-03 15:23:07,382 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 264.0ms TimeCoverageRelationStatistics Valid=176, Invalid=424, Unknown=0, NotChecked=0, Total=600 [2021-05-03 15:23:07,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-05-03 15:23:07,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 133. [2021-05-03 15:23:07,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 2.212121212121212) internal successors, (292), 132 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:07,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 292 transitions. [2021-05-03 15:23:07,390 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 292 transitions. Word has length 20 [2021-05-03 15:23:07,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:07,392 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 292 transitions. [2021-05-03 15:23:07,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:07,392 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 292 transitions. [2021-05-03 15:23:07,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-03 15:23:07,392 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:07,393 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:07,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:07,609 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:07,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:07,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1866660490, now seen corresponding path program 7 times [2021-05-03 15:23:07,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:07,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406799500] [2021-05-03 15:23:07,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:07,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406799500] [2021-05-03 15:23:07,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692330715] [2021-05-03 15:23:07,663 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:07,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 15:23:07,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:07,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:07,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:07,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-05-03 15:23:07,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683551199] [2021-05-03 15:23:07,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-03 15:23:07,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:07,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-03 15:23:07,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-05-03 15:23:07,806 INFO L87 Difference]: Start difference. First operand 133 states and 292 transitions. Second operand has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 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) [2021-05-03 15:23:08,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:08,130 INFO L93 Difference]: Finished difference Result 311 states and 632 transitions. [2021-05-03 15:23:08,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-03 15:23:08,130 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 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 20 [2021-05-03 15:23:08,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:08,132 INFO L225 Difference]: With dead ends: 311 [2021-05-03 15:23:08,132 INFO L226 Difference]: Without dead ends: 311 [2021-05-03 15:23:08,132 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 295.1ms TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2021-05-03 15:23:08,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-05-03 15:23:08,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 176. [2021-05-03 15:23:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 2.297142857142857) internal successors, (402), 175 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:08,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 402 transitions. [2021-05-03 15:23:08,140 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 402 transitions. Word has length 20 [2021-05-03 15:23:08,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:08,140 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 402 transitions. [2021-05-03 15:23:08,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 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) [2021-05-03 15:23:08,140 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 402 transitions. [2021-05-03 15:23:08,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-03 15:23:08,141 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:08,141 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:08,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:08,345 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:08,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:08,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1163855182, now seen corresponding path program 8 times [2021-05-03 15:23:08,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:08,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624818400] [2021-05-03 15:23:08,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:08,387 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:08,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624818400] [2021-05-03 15:23:08,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208885596] [2021-05-03 15:23:08,387 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:08,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:23:08,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:08,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 15:23:08,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:08,527 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:08,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:08,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-05-03 15:23:08,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346639949] [2021-05-03 15:23:08,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-03 15:23:08,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:08,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-03 15:23:08,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-05-03 15:23:08,530 INFO L87 Difference]: Start difference. First operand 176 states and 402 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:08,772 INFO L93 Difference]: Finished difference Result 248 states and 522 transitions. [2021-05-03 15:23:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 15:23:08,776 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-05-03 15:23:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:08,778 INFO L225 Difference]: With dead ends: 248 [2021-05-03 15:23:08,778 INFO L226 Difference]: Without dead ends: 242 [2021-05-03 15:23:08,778 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 201.1ms TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2021-05-03 15:23:08,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-05-03 15:23:08,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 182. [2021-05-03 15:23:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.3259668508287294) internal successors, (421), 181 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:08,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 421 transitions. [2021-05-03 15:23:08,789 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 421 transitions. Word has length 20 [2021-05-03 15:23:08,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:08,791 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 421 transitions. [2021-05-03 15:23:08,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:08,791 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 421 transitions. [2021-05-03 15:23:08,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-03 15:23:08,793 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:08,793 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:09,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-05-03 15:23:09,009 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:09,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:09,009 INFO L82 PathProgramCache]: Analyzing trace with hash 482286172, now seen corresponding path program 9 times [2021-05-03 15:23:09,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:09,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711274962] [2021-05-03 15:23:09,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:09,051 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:09,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711274962] [2021-05-03 15:23:09,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917380747] [2021-05-03 15:23:09,051 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:09,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-03 15:23:09,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:09,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 15:23:09,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:09,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:09,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-05-03 15:23:09,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37823085] [2021-05-03 15:23:09,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-03 15:23:09,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:09,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-03 15:23:09,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-05-03 15:23:09,168 INFO L87 Difference]: Start difference. First operand 182 states and 421 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:09,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:09,399 INFO L93 Difference]: Finished difference Result 300 states and 621 transitions. [2021-05-03 15:23:09,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 15:23:09,400 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-05-03 15:23:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:09,405 INFO L225 Difference]: With dead ends: 300 [2021-05-03 15:23:09,405 INFO L226 Difference]: Without dead ends: 296 [2021-05-03 15:23:09,406 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 198.2ms TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2021-05-03 15:23:09,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-05-03 15:23:09,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 182. [2021-05-03 15:23:09,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.314917127071823) internal successors, (419), 181 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:09,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 419 transitions. [2021-05-03 15:23:09,420 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 419 transitions. Word has length 20 [2021-05-03 15:23:09,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:09,420 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 419 transitions. [2021-05-03 15:23:09,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:09,420 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 419 transitions. [2021-05-03 15:23:09,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-03 15:23:09,421 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:09,421 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:09,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:09,626 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:09,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:09,627 INFO L82 PathProgramCache]: Analyzing trace with hash -24060094, now seen corresponding path program 10 times [2021-05-03 15:23:09,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:09,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499861604] [2021-05-03 15:23:09,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:09,672 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:09,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499861604] [2021-05-03 15:23:09,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38517886] [2021-05-03 15:23:09,673 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:09,700 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:23:09,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:09,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 15:23:09,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:09,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:09,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-05-03 15:23:09,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425068176] [2021-05-03 15:23:09,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-03 15:23:09,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:09,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-03 15:23:09,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-05-03 15:23:09,786 INFO L87 Difference]: Start difference. First operand 182 states and 419 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:10,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:10,046 INFO L93 Difference]: Finished difference Result 296 states and 623 transitions. [2021-05-03 15:23:10,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-03 15:23:10,047 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-05-03 15:23:10,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:10,049 INFO L225 Difference]: With dead ends: 296 [2021-05-03 15:23:10,049 INFO L226 Difference]: Without dead ends: 284 [2021-05-03 15:23:10,051 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 245.3ms TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2021-05-03 15:23:10,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-05-03 15:23:10,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 193. [2021-05-03 15:23:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 2.3125) internal successors, (444), 192 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 444 transitions. [2021-05-03 15:23:10,057 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 444 transitions. Word has length 20 [2021-05-03 15:23:10,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:10,057 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 444 transitions. [2021-05-03 15:23:10,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:10,058 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 444 transitions. [2021-05-03 15:23:10,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-03 15:23:10,058 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:10,058 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:10,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-05-03 15:23:10,280 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:10,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:10,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1616828084, now seen corresponding path program 11 times [2021-05-03 15:23:10,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:10,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383839947] [2021-05-03 15:23:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:10,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383839947] [2021-05-03 15:23:10,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948809270] [2021-05-03 15:23:10,311 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:10,345 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-05-03 15:23:10,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:10,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:23:10,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:10,404 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-05-03 15:23:10,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 35 [2021-05-03 15:23:10,433 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:23:10,439 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:10,446 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:23:10,447 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:25 [2021-05-03 15:23:10,519 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-05-03 15:23:10,519 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 16 [2021-05-03 15:23:10,521 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:10,527 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-05-03 15:23:10,527 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 18 [2021-05-03 15:23:10,530 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:10,535 INFO L628 ElimStorePlain]: treesize reduction 8, result has 27.3 percent of original size [2021-05-03 15:23:10,536 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:10,536 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:3 [2021-05-03 15:23:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:10,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:10,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-05-03 15:23:10,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443969503] [2021-05-03 15:23:10,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-03 15:23:10,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:10,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-03 15:23:10,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-03 15:23:10,543 INFO L87 Difference]: Start difference. First operand 193 states and 444 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:10,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:10,587 INFO L93 Difference]: Finished difference Result 341 states and 750 transitions. [2021-05-03 15:23:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 15:23:10,588 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-05-03 15:23:10,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:10,589 INFO L225 Difference]: With dead ends: 341 [2021-05-03 15:23:10,590 INFO L226 Difference]: Without dead ends: 334 [2021-05-03 15:23:10,591 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 67.6ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-05-03 15:23:10,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-05-03 15:23:10,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 263. [2021-05-03 15:23:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 2.377862595419847) internal successors, (623), 262 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 623 transitions. [2021-05-03 15:23:10,604 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 623 transitions. Word has length 22 [2021-05-03 15:23:10,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:10,604 INFO L480 AbstractCegarLoop]: Abstraction has 263 states and 623 transitions. [2021-05-03 15:23:10,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:10,605 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 623 transitions. [2021-05-03 15:23:10,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-03 15:23:10,605 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:10,605 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:10,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-05-03 15:23:10,821 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:10,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:10,821 INFO L82 PathProgramCache]: Analyzing trace with hash -462338892, now seen corresponding path program 12 times [2021-05-03 15:23:10,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:10,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363638236] [2021-05-03 15:23:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:10,850 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:10,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363638236] [2021-05-03 15:23:10,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019276836] [2021-05-03 15:23:10,851 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:10,870 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-05-03 15:23:10,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:10,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:23:10,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:10,940 INFO L446 ElimStorePlain]: Different costs {1=[f], 3=[f_inv]} [2021-05-03 15:23:10,945 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:10,945 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 38 [2021-05-03 15:23:10,959 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:23:10,965 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:10,970 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:10,970 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2021-05-03 15:23:10,975 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:10,977 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:10,977 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:10,977 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:3 [2021-05-03 15:23:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:10,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:10,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-05-03 15:23:10,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945056351] [2021-05-03 15:23:10,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-03 15:23:10,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:10,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-03 15:23:10,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-03 15:23:10,988 INFO L87 Difference]: Start difference. First operand 263 states and 623 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:11,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:11,028 INFO L93 Difference]: Finished difference Result 405 states and 917 transitions. [2021-05-03 15:23:11,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 15:23:11,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-05-03 15:23:11,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:11,030 INFO L225 Difference]: With dead ends: 405 [2021-05-03 15:23:11,030 INFO L226 Difference]: Without dead ends: 396 [2021-05-03 15:23:11,030 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 47.5ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-03 15:23:11,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-05-03 15:23:11,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 318. [2021-05-03 15:23:11,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 2.444794952681388) internal successors, (775), 317 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 775 transitions. [2021-05-03 15:23:11,040 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 775 transitions. Word has length 22 [2021-05-03 15:23:11,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:11,040 INFO L480 AbstractCegarLoop]: Abstraction has 318 states and 775 transitions. [2021-05-03 15:23:11,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:11,041 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 775 transitions. [2021-05-03 15:23:11,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-03 15:23:11,041 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:11,041 INFO L551 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:11,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:11,253 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:11,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:11,253 INFO L82 PathProgramCache]: Analyzing trace with hash -2570572, now seen corresponding path program 13 times [2021-05-03 15:23:11,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:11,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808983471] [2021-05-03 15:23:11,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:11,285 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:11,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808983471] [2021-05-03 15:23:11,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978947986] [2021-05-03 15:23:11,286 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:11,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:23:11,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:11,359 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:11,359 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-05-03 15:23:11,361 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:11,366 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:11,367 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:11,367 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2021-05-03 15:23:11,460 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-05-03 15:23:11,460 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 18 [2021-05-03 15:23:11,463 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:11,467 INFO L628 ElimStorePlain]: treesize reduction 21, result has 12.5 percent of original size [2021-05-03 15:23:11,467 INFO L518 ElimStorePlain]: Eliminatee v_prenex_2 vanished before elimination [2021-05-03 15:23:11,468 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:11,468 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:42, output treesize:3 [2021-05-03 15:23:11,479 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:11,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:11,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-05-03 15:23:11,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969641821] [2021-05-03 15:23:11,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-03 15:23:11,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:11,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-03 15:23:11,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-03 15:23:11,480 INFO L87 Difference]: Start difference. First operand 318 states and 775 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:11,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:11,516 INFO L93 Difference]: Finished difference Result 499 states and 1143 transitions. [2021-05-03 15:23:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 15:23:11,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-05-03 15:23:11,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:11,519 INFO L225 Difference]: With dead ends: 499 [2021-05-03 15:23:11,519 INFO L226 Difference]: Without dead ends: 492 [2021-05-03 15:23:11,520 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 50.1ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-05-03 15:23:11,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-05-03 15:23:11,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 374. [2021-05-03 15:23:11,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 373 states have (on average 2.474530831099196) internal successors, (923), 373 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 923 transitions. [2021-05-03 15:23:11,531 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 923 transitions. Word has length 22 [2021-05-03 15:23:11,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:11,532 INFO L480 AbstractCegarLoop]: Abstraction has 374 states and 923 transitions. [2021-05-03 15:23:11,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:11,532 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 923 transitions. [2021-05-03 15:23:11,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:11,533 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:11,533 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:11,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-05-03 15:23:11,755 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:11,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:11,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1932504778, now seen corresponding path program 14 times [2021-05-03 15:23:11,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:11,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023694392] [2021-05-03 15:23:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:11,851 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:11,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023694392] [2021-05-03 15:23:11,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376015917] [2021-05-03 15:23:11,851 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:11,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:23:11,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:11,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:11,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:12,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:12,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-05-03 15:23:12,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076713682] [2021-05-03 15:23:12,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-03 15:23:12,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:12,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-03 15:23:12,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-05-03 15:23:12,029 INFO L87 Difference]: Start difference. First operand 374 states and 923 transitions. Second operand has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:12,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:12,573 INFO L93 Difference]: Finished difference Result 665 states and 1470 transitions. [2021-05-03 15:23:12,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 15:23:12,573 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 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 24 [2021-05-03 15:23:12,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:12,576 INFO L225 Difference]: With dead ends: 665 [2021-05-03 15:23:12,576 INFO L226 Difference]: Without dead ends: 665 [2021-05-03 15:23:12,577 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 449.5ms TimeCoverageRelationStatistics Valid=402, Invalid=1080, Unknown=0, NotChecked=0, Total=1482 [2021-05-03 15:23:12,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2021-05-03 15:23:12,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 325. [2021-05-03 15:23:12,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 2.450617283950617) internal successors, (794), 324 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:12,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 794 transitions. [2021-05-03 15:23:12,587 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 794 transitions. Word has length 24 [2021-05-03 15:23:12,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:12,587 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 794 transitions. [2021-05-03 15:23:12,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:12,588 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 794 transitions. [2021-05-03 15:23:12,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:12,588 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:12,588 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:12,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:12,805 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:12,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:12,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1929426830, now seen corresponding path program 15 times [2021-05-03 15:23:12,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:12,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92429314] [2021-05-03 15:23:12,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:12,862 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:12,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92429314] [2021-05-03 15:23:12,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925326689] [2021-05-03 15:23:12,862 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:12,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-05-03 15:23:12,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:12,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:12,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:13,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:13,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-05-03 15:23:13,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196603336] [2021-05-03 15:23:13,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 15:23:13,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:13,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 15:23:13,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:23:13,026 INFO L87 Difference]: Start difference. First operand 325 states and 794 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 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) [2021-05-03 15:23:13,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:13,701 INFO L93 Difference]: Finished difference Result 786 states and 1670 transitions. [2021-05-03 15:23:13,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-03 15:23:13,713 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 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 24 [2021-05-03 15:23:13,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:13,716 INFO L225 Difference]: With dead ends: 786 [2021-05-03 15:23:13,716 INFO L226 Difference]: Without dead ends: 742 [2021-05-03 15:23:13,717 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 611.2ms TimeCoverageRelationStatistics Valid=449, Invalid=1357, Unknown=0, NotChecked=0, Total=1806 [2021-05-03 15:23:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2021-05-03 15:23:13,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 342. [2021-05-03 15:23:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 341 states have (on average 2.4134897360703813) internal successors, (823), 341 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:13,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 823 transitions. [2021-05-03 15:23:13,730 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 823 transitions. Word has length 24 [2021-05-03 15:23:13,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:13,730 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 823 transitions. [2021-05-03 15:23:13,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 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) [2021-05-03 15:23:13,730 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 823 transitions. [2021-05-03 15:23:13,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:13,731 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:13,731 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:13,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:13,952 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:13,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:13,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1265887354, now seen corresponding path program 16 times [2021-05-03 15:23:13,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:13,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961106884] [2021-05-03 15:23:13,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:14,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961106884] [2021-05-03 15:23:14,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797723985] [2021-05-03 15:23:14,021 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:14,050 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:23:14,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:14,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:14,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:14,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:14,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-05-03 15:23:14,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517962075] [2021-05-03 15:23:14,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-03 15:23:14,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:14,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-03 15:23:14,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-05-03 15:23:14,179 INFO L87 Difference]: Start difference. First operand 342 states and 823 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 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) [2021-05-03 15:23:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:14,740 INFO L93 Difference]: Finished difference Result 742 states and 1645 transitions. [2021-05-03 15:23:14,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-03 15:23:14,741 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 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 24 [2021-05-03 15:23:14,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:14,744 INFO L225 Difference]: With dead ends: 742 [2021-05-03 15:23:14,744 INFO L226 Difference]: Without dead ends: 740 [2021-05-03 15:23:14,745 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 498.6ms TimeCoverageRelationStatistics Valid=387, Invalid=945, Unknown=0, NotChecked=0, Total=1332 [2021-05-03 15:23:14,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-05-03 15:23:14,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 404. [2021-05-03 15:23:14,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 403 states have (on average 2.424317617866005) internal successors, (977), 403 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:14,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 977 transitions. [2021-05-03 15:23:14,758 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 977 transitions. Word has length 24 [2021-05-03 15:23:14,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:14,759 INFO L480 AbstractCegarLoop]: Abstraction has 404 states and 977 transitions. [2021-05-03 15:23:14,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 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) [2021-05-03 15:23:14,760 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 977 transitions. [2021-05-03 15:23:14,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:14,761 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:14,761 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:14,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:14,984 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:14,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:14,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1645181860, now seen corresponding path program 17 times [2021-05-03 15:23:14,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:14,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214977055] [2021-05-03 15:23:14,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:15,048 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:15,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214977055] [2021-05-03 15:23:15,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098009004] [2021-05-03 15:23:15,049 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:15,069 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-03 15:23:15,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:15,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:15,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:15,196 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:15,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:15,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-05-03 15:23:15,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042513443] [2021-05-03 15:23:15,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-03 15:23:15,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:15,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-03 15:23:15,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2021-05-03 15:23:15,198 INFO L87 Difference]: Start difference. First operand 404 states and 977 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 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) [2021-05-03 15:23:15,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:15,621 INFO L93 Difference]: Finished difference Result 548 states and 1247 transitions. [2021-05-03 15:23:15,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-03 15:23:15,621 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 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 24 [2021-05-03 15:23:15,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:15,623 INFO L225 Difference]: With dead ends: 548 [2021-05-03 15:23:15,623 INFO L226 Difference]: Without dead ends: 544 [2021-05-03 15:23:15,624 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 391.2ms TimeCoverageRelationStatistics Valid=356, Invalid=976, Unknown=0, NotChecked=0, Total=1332 [2021-05-03 15:23:15,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2021-05-03 15:23:15,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 404. [2021-05-03 15:23:15,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 403 states have (on average 2.4218362282878414) internal successors, (976), 403 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:15,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 976 transitions. [2021-05-03 15:23:15,634 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 976 transitions. Word has length 24 [2021-05-03 15:23:15,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:15,634 INFO L480 AbstractCegarLoop]: Abstraction has 404 states and 976 transitions. [2021-05-03 15:23:15,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 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) [2021-05-03 15:23:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 976 transitions. [2021-05-03 15:23:15,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:15,635 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:15,635 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:15,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-05-03 15:23:15,857 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:15,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:15,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1445869170, now seen corresponding path program 18 times [2021-05-03 15:23:15,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:15,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346641735] [2021-05-03 15:23:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:15,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346641735] [2021-05-03 15:23:15,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398976137] [2021-05-03 15:23:15,905 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:15,934 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-05-03 15:23:15,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:15,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:15,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:16,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:16,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-05-03 15:23:16,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001585657] [2021-05-03 15:23:16,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-03 15:23:16,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:16,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-03 15:23:16,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-05-03 15:23:16,104 INFO L87 Difference]: Start difference. First operand 404 states and 976 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 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) [2021-05-03 15:23:16,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:16,514 INFO L93 Difference]: Finished difference Result 648 states and 1454 transitions. [2021-05-03 15:23:16,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-03 15:23:16,515 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 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 24 [2021-05-03 15:23:16,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:16,517 INFO L225 Difference]: With dead ends: 648 [2021-05-03 15:23:16,517 INFO L226 Difference]: Without dead ends: 636 [2021-05-03 15:23:16,518 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 341.4ms TimeCoverageRelationStatistics Valid=235, Invalid=695, Unknown=0, NotChecked=0, Total=930 [2021-05-03 15:23:16,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-05-03 15:23:16,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 426. [2021-05-03 15:23:16,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 2.4376470588235293) internal successors, (1036), 425 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:16,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 1036 transitions. [2021-05-03 15:23:16,529 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 1036 transitions. Word has length 24 [2021-05-03 15:23:16,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:16,529 INFO L480 AbstractCegarLoop]: Abstraction has 426 states and 1036 transitions. [2021-05-03 15:23:16,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 14 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) [2021-05-03 15:23:16,529 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1036 transitions. [2021-05-03 15:23:16,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:16,530 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:16,530 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:16,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-05-03 15:23:16,744 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:16,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:16,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1709303038, now seen corresponding path program 19 times [2021-05-03 15:23:16,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:16,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753731858] [2021-05-03 15:23:16,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:16,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753731858] [2021-05-03 15:23:16,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439298696] [2021-05-03 15:23:16,796 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:16,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:16,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:16,948 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:16,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:16,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-05-03 15:23:16,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218564537] [2021-05-03 15:23:16,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-03 15:23:16,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:16,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-03 15:23:16,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-05-03 15:23:16,951 INFO L87 Difference]: Start difference. First operand 426 states and 1036 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 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) [2021-05-03 15:23:17,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:17,406 INFO L93 Difference]: Finished difference Result 690 states and 1541 transitions. [2021-05-03 15:23:17,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-03 15:23:17,407 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 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 24 [2021-05-03 15:23:17,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:17,409 INFO L225 Difference]: With dead ends: 690 [2021-05-03 15:23:17,409 INFO L226 Difference]: Without dead ends: 676 [2021-05-03 15:23:17,409 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 397.4ms TimeCoverageRelationStatistics Valid=382, Invalid=1100, Unknown=0, NotChecked=0, Total=1482 [2021-05-03 15:23:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2021-05-03 15:23:17,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 412. [2021-05-03 15:23:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 2.4184914841849148) internal successors, (994), 411 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:17,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 994 transitions. [2021-05-03 15:23:17,420 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 994 transitions. Word has length 24 [2021-05-03 15:23:17,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:17,420 INFO L480 AbstractCegarLoop]: Abstraction has 412 states and 994 transitions. [2021-05-03 15:23:17,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 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) [2021-05-03 15:23:17,420 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 994 transitions. [2021-05-03 15:23:17,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:17,421 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:17,421 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:17,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-05-03 15:23:17,637 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:17,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:17,637 INFO L82 PathProgramCache]: Analyzing trace with hash 919841334, now seen corresponding path program 20 times [2021-05-03 15:23:17,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:17,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120009495] [2021-05-03 15:23:17,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:17,704 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:17,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120009495] [2021-05-03 15:23:17,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357726992] [2021-05-03 15:23:17,704 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:17,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:23:17,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:17,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:17,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:17,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:17,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-05-03 15:23:17,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287741035] [2021-05-03 15:23:17,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 15:23:17,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:17,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 15:23:17,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:23:17,856 INFO L87 Difference]: Start difference. First operand 412 states and 994 transitions. Second operand has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 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) [2021-05-03 15:23:18,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:18,339 INFO L93 Difference]: Finished difference Result 791 states and 1734 transitions. [2021-05-03 15:23:18,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-05-03 15:23:18,340 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 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 24 [2021-05-03 15:23:18,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:18,342 INFO L225 Difference]: With dead ends: 791 [2021-05-03 15:23:18,342 INFO L226 Difference]: Without dead ends: 791 [2021-05-03 15:23:18,343 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 438.6ms TimeCoverageRelationStatistics Valid=414, Invalid=1068, Unknown=0, NotChecked=0, Total=1482 [2021-05-03 15:23:18,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-05-03 15:23:18,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 429. [2021-05-03 15:23:18,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 428 states have (on average 2.397196261682243) internal successors, (1026), 428 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:18,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 1026 transitions. [2021-05-03 15:23:18,354 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 1026 transitions. Word has length 24 [2021-05-03 15:23:18,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:18,354 INFO L480 AbstractCegarLoop]: Abstraction has 429 states and 1026 transitions. [2021-05-03 15:23:18,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 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) [2021-05-03 15:23:18,354 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 1026 transitions. [2021-05-03 15:23:18,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:18,355 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:18,355 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:18,578 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-05-03 15:23:18,578 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:18,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:18,579 INFO L82 PathProgramCache]: Analyzing trace with hash 2005876850, now seen corresponding path program 21 times [2021-05-03 15:23:18,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:18,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095313481] [2021-05-03 15:23:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:18,627 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:18,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095313481] [2021-05-03 15:23:18,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053547699] [2021-05-03 15:23:18,628 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:18,649 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-03 15:23:18,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:18,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:18,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:18,766 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:18,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:18,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-05-03 15:23:18,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552665872] [2021-05-03 15:23:18,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-03 15:23:18,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:18,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-03 15:23:18,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-05-03 15:23:18,767 INFO L87 Difference]: Start difference. First operand 429 states and 1026 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:19,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:19,184 INFO L93 Difference]: Finished difference Result 588 states and 1296 transitions. [2021-05-03 15:23:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-03 15:23:19,184 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-05-03 15:23:19,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:19,185 INFO L225 Difference]: With dead ends: 588 [2021-05-03 15:23:19,185 INFO L226 Difference]: Without dead ends: 570 [2021-05-03 15:23:19,186 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 358.0ms TimeCoverageRelationStatistics Valid=286, Invalid=904, Unknown=0, NotChecked=0, Total=1190 [2021-05-03 15:23:19,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2021-05-03 15:23:19,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 423. [2021-05-03 15:23:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 2.3981042654028437) internal successors, (1012), 422 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:19,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1012 transitions. [2021-05-03 15:23:19,194 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1012 transitions. Word has length 24 [2021-05-03 15:23:19,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:19,195 INFO L480 AbstractCegarLoop]: Abstraction has 423 states and 1012 transitions. [2021-05-03 15:23:19,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:19,195 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1012 transitions. [2021-05-03 15:23:19,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:19,196 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:19,196 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:19,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-05-03 15:23:19,418 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:19,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:19,418 INFO L82 PathProgramCache]: Analyzing trace with hash 198787894, now seen corresponding path program 22 times [2021-05-03 15:23:19,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:19,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673949424] [2021-05-03 15:23:19,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:19,470 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:19,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673949424] [2021-05-03 15:23:19,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629607053] [2021-05-03 15:23:19,471 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:19,488 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:23:19,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:19,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:19,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:19,596 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:19,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:19,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-05-03 15:23:19,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134946000] [2021-05-03 15:23:19,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-03 15:23:19,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:19,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-03 15:23:19,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-05-03 15:23:19,598 INFO L87 Difference]: Start difference. First operand 423 states and 1012 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:20,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:20,120 INFO L93 Difference]: Finished difference Result 898 states and 2037 transitions. [2021-05-03 15:23:20,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-03 15:23:20,121 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 15 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 24 [2021-05-03 15:23:20,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:20,123 INFO L225 Difference]: With dead ends: 898 [2021-05-03 15:23:20,123 INFO L226 Difference]: Without dead ends: 898 [2021-05-03 15:23:20,123 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 458.1ms TimeCoverageRelationStatistics Valid=520, Invalid=1202, Unknown=0, NotChecked=0, Total=1722 [2021-05-03 15:23:20,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-05-03 15:23:20,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 622. [2021-05-03 15:23:20,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 2.4621578099838968) internal successors, (1529), 621 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:20,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1529 transitions. [2021-05-03 15:23:20,136 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1529 transitions. Word has length 24 [2021-05-03 15:23:20,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:20,136 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 1529 transitions. [2021-05-03 15:23:20,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 15 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:20,137 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1529 transitions. [2021-05-03 15:23:20,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:20,138 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:20,138 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:20,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:20,360 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:20,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:20,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1747232740, now seen corresponding path program 23 times [2021-05-03 15:23:20,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:20,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987775892] [2021-05-03 15:23:20,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:20,407 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:20,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987775892] [2021-05-03 15:23:20,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38496482] [2021-05-03 15:23:20,407 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:20,426 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-05-03 15:23:20,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:20,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:20,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:20,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:20,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2021-05-03 15:23:20,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213158615] [2021-05-03 15:23:20,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-03 15:23:20,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:20,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-03 15:23:20,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-05-03 15:23:20,546 INFO L87 Difference]: Start difference. First operand 622 states and 1529 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 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) [2021-05-03 15:23:20,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:20,917 INFO L93 Difference]: Finished difference Result 871 states and 1982 transitions. [2021-05-03 15:23:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-03 15:23:20,918 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 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 24 [2021-05-03 15:23:20,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:20,920 INFO L225 Difference]: With dead ends: 871 [2021-05-03 15:23:20,920 INFO L226 Difference]: Without dead ends: 867 [2021-05-03 15:23:20,920 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 335.4ms TimeCoverageRelationStatistics Valid=342, Invalid=848, Unknown=0, NotChecked=0, Total=1190 [2021-05-03 15:23:20,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2021-05-03 15:23:20,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 622. [2021-05-03 15:23:20,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 2.4557165861513686) internal successors, (1525), 621 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1525 transitions. [2021-05-03 15:23:20,933 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1525 transitions. Word has length 24 [2021-05-03 15:23:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:20,933 INFO L480 AbstractCegarLoop]: Abstraction has 622 states and 1525 transitions. [2021-05-03 15:23:20,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 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) [2021-05-03 15:23:20,934 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1525 transitions. [2021-05-03 15:23:20,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:20,935 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:20,935 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:21,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-05-03 15:23:21,149 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:21,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:21,149 INFO L82 PathProgramCache]: Analyzing trace with hash 2041388290, now seen corresponding path program 24 times [2021-05-03 15:23:21,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:21,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155119871] [2021-05-03 15:23:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:21,201 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:21,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155119871] [2021-05-03 15:23:21,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012272249] [2021-05-03 15:23:21,201 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:21,221 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-05-03 15:23:21,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:21,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:21,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:21,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:21,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2021-05-03 15:23:21,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300732594] [2021-05-03 15:23:21,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-03 15:23:21,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:21,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-03 15:23:21,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2021-05-03 15:23:21,344 INFO L87 Difference]: Start difference. First operand 622 states and 1525 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 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) [2021-05-03 15:23:21,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:21,761 INFO L93 Difference]: Finished difference Result 948 states and 2156 transitions. [2021-05-03 15:23:21,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 15:23:21,761 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 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 24 [2021-05-03 15:23:21,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:21,763 INFO L225 Difference]: With dead ends: 948 [2021-05-03 15:23:21,763 INFO L226 Difference]: Without dead ends: 936 [2021-05-03 15:23:21,764 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 379.0ms TimeCoverageRelationStatistics Valid=355, Invalid=977, Unknown=0, NotChecked=0, Total=1332 [2021-05-03 15:23:21,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2021-05-03 15:23:21,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 675. [2021-05-03 15:23:21,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 2.4614243323442135) internal successors, (1659), 674 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:21,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 1659 transitions. [2021-05-03 15:23:21,777 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 1659 transitions. Word has length 24 [2021-05-03 15:23:21,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:21,777 INFO L480 AbstractCegarLoop]: Abstraction has 675 states and 1659 transitions. [2021-05-03 15:23:21,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 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) [2021-05-03 15:23:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 1659 transitions. [2021-05-03 15:23:21,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-05-03 15:23:21,779 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:21,779 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:22,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-05-03 15:23:22,000 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:22,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:22,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1814166910, now seen corresponding path program 25 times [2021-05-03 15:23:22,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:22,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013951883] [2021-05-03 15:23:22,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:22,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013951883] [2021-05-03 15:23:22,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986010283] [2021-05-03 15:23:22,058 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:22,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-03 15:23:22,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:22,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:22,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-05-03 15:23:22,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555444533] [2021-05-03 15:23:22,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 15:23:22,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:22,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 15:23:22,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:23:22,184 INFO L87 Difference]: Start difference. First operand 675 states and 1659 transitions. Second operand has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 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) [2021-05-03 15:23:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:22,655 INFO L93 Difference]: Finished difference Result 948 states and 2180 transitions. [2021-05-03 15:23:22,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-03 15:23:22,656 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 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 24 [2021-05-03 15:23:22,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:22,659 INFO L225 Difference]: With dead ends: 948 [2021-05-03 15:23:22,659 INFO L226 Difference]: Without dead ends: 928 [2021-05-03 15:23:22,659 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 442.9ms TimeCoverageRelationStatistics Valid=419, Invalid=1221, Unknown=0, NotChecked=0, Total=1640 [2021-05-03 15:23:22,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2021-05-03 15:23:22,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 699. [2021-05-03 15:23:22,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 2.4713467048710602) internal successors, (1725), 698 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1725 transitions. [2021-05-03 15:23:22,672 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1725 transitions. Word has length 24 [2021-05-03 15:23:22,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:22,672 INFO L480 AbstractCegarLoop]: Abstraction has 699 states and 1725 transitions. [2021-05-03 15:23:22,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 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) [2021-05-03 15:23:22,673 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1725 transitions. [2021-05-03 15:23:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-03 15:23:22,674 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:22,674 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:22,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-05-03 15:23:22,896 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:22,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:22,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1660693108, now seen corresponding path program 26 times [2021-05-03 15:23:22,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:22,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902665963] [2021-05-03 15:23:22,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:22,930 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:22,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902665963] [2021-05-03 15:23:22,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274346220] [2021-05-03 15:23:22,931 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 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:22,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:23:22,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:22,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 23 conjunts are in the unsatisfiable core [2021-05-03 15:23:22,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:23,034 INFO L354 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2021-05-03 15:23:23,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 51 [2021-05-03 15:23:23,058 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:23:23,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:23,082 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:23:23,083 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:47 [2021-05-03 15:23:23,264 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-05-03 15:23:23,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 22 [2021-05-03 15:23:23,266 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:23,282 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:23,293 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-05-03 15:23:23,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 23 [2021-05-03 15:23:23,294 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:23,309 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:23,325 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-05-03 15:23:23,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 33 [2021-05-03 15:23:23,327 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:23,333 INFO L628 ElimStorePlain]: treesize reduction 16, result has 15.8 percent of original size [2021-05-03 15:23:23,333 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:23,334 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:103, output treesize:3 [2021-05-03 15:23:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:23,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:23,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-05-03 15:23:23,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560045728] [2021-05-03 15:23:23,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-03 15:23:23,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:23,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-03 15:23:23,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-05-03 15:23:23,342 INFO L87 Difference]: Start difference. First operand 699 states and 1725 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 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) [2021-05-03 15:23:23,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:23,424 INFO L93 Difference]: Finished difference Result 1035 states and 2478 transitions. [2021-05-03 15:23:23,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 15:23:23,425 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 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 26 [2021-05-03 15:23:23,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:23,428 INFO L225 Difference]: With dead ends: 1035 [2021-05-03 15:23:23,428 INFO L226 Difference]: Without dead ends: 1028 [2021-05-03 15:23:23,428 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 155.9ms TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-05-03 15:23:23,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2021-05-03 15:23:23,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 866. [2021-05-03 15:23:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 865 states have (on average 2.4959537572254336) internal successors, (2159), 865 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:23,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 2159 transitions. [2021-05-03 15:23:23,443 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 2159 transitions. Word has length 26 [2021-05-03 15:23:23,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:23,443 INFO L480 AbstractCegarLoop]: Abstraction has 866 states and 2159 transitions. [2021-05-03 15:23:23,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 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) [2021-05-03 15:23:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 2159 transitions. [2021-05-03 15:23:23,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-03 15:23:23,445 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:23,445 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:23,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:23,666 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:23,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:23,667 INFO L82 PathProgramCache]: Analyzing trace with hash -439799948, now seen corresponding path program 27 times [2021-05-03 15:23:23,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:23,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090239033] [2021-05-03 15:23:23,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:23,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090239033] [2021-05-03 15:23:23,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199599398] [2021-05-03 15:23:23,698 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 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 [2021-05-03 15:23:23,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-05-03 15:23:23,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:23,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-03 15:23:23,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:23,796 INFO L446 ElimStorePlain]: Different costs {3=[f], 10=[f_inv]} [2021-05-03 15:23:23,811 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-05-03 15:23:23,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 60 [2021-05-03 15:23:23,829 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:23:23,839 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:23,849 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:23,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 53 [2021-05-03 15:23:23,862 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:23,864 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:23,864 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:23,864 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:84, output treesize:3 [2021-05-03 15:23:23,874 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:23,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:23,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-05-03 15:23:23,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122211972] [2021-05-03 15:23:23,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-03 15:23:23,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:23,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-03 15:23:23,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-05-03 15:23:23,876 INFO L87 Difference]: Start difference. First operand 866 states and 2159 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:23,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:23,940 INFO L93 Difference]: Finished difference Result 1098 states and 2666 transitions. [2021-05-03 15:23:23,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 15:23:23,940 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-05-03 15:23:23,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:23,944 INFO L225 Difference]: With dead ends: 1098 [2021-05-03 15:23:23,944 INFO L226 Difference]: Without dead ends: 1089 [2021-05-03 15:23:23,944 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 61.3ms TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-05-03 15:23:23,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2021-05-03 15:23:23,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 972. [2021-05-03 15:23:23,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 971 states have (on average 2.532440782698249) internal successors, (2459), 971 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:23,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 2459 transitions. [2021-05-03 15:23:23,962 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 2459 transitions. Word has length 26 [2021-05-03 15:23:23,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:23,963 INFO L480 AbstractCegarLoop]: Abstraction has 972 states and 2459 transitions. [2021-05-03 15:23:23,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:23,963 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 2459 transitions. [2021-05-03 15:23:23,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-03 15:23:23,965 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:23,965 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:24,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2021-05-03 15:23:24,185 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:24,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:24,185 INFO L82 PathProgramCache]: Analyzing trace with hash -318369164, now seen corresponding path program 28 times [2021-05-03 15:23:24,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:24,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244998127] [2021-05-03 15:23:24,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:24,211 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:24,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244998127] [2021-05-03 15:23:24,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22675261] [2021-05-03 15:23:24,212 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 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:24,234 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:23:24,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:24,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjunts are in the unsatisfiable core [2021-05-03 15:23:24,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:24,302 INFO L354 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2021-05-03 15:23:24,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 43 [2021-05-03 15:23:24,303 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:24,310 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:24,311 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:24,311 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:53, output treesize:32 [2021-05-03 15:23:24,405 INFO L446 ElimStorePlain]: Different costs {1=[f], 3=[v_prenex_10]} [2021-05-03 15:23:24,409 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-05-03 15:23:24,409 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2021-05-03 15:23:24,410 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:24,414 INFO L628 ElimStorePlain]: treesize reduction 30, result has 9.1 percent of original size [2021-05-03 15:23:24,414 INFO L518 ElimStorePlain]: Eliminatee v_prenex_10 vanished before elimination [2021-05-03 15:23:24,414 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:24,414 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:45, output treesize:3 [2021-05-03 15:23:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:24,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:24,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-05-03 15:23:24,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37137234] [2021-05-03 15:23:24,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-03 15:23:24,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:24,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-03 15:23:24,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-05-03 15:23:24,428 INFO L87 Difference]: Start difference. First operand 972 states and 2459 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:24,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:24,485 INFO L93 Difference]: Finished difference Result 1360 states and 3305 transitions. [2021-05-03 15:23:24,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 15:23:24,485 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-05-03 15:23:24,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:24,489 INFO L225 Difference]: With dead ends: 1360 [2021-05-03 15:23:24,489 INFO L226 Difference]: Without dead ends: 1335 [2021-05-03 15:23:24,489 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 107.3ms TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-05-03 15:23:24,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2021-05-03 15:23:24,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1089. [2021-05-03 15:23:24,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1088 states have (on average 2.557904411764706) internal successors, (2783), 1088 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:24,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 2783 transitions. [2021-05-03 15:23:24,510 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 2783 transitions. Word has length 26 [2021-05-03 15:23:24,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:24,510 INFO L480 AbstractCegarLoop]: Abstraction has 1089 states and 2783 transitions. [2021-05-03 15:23:24,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:24,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 2783 transitions. [2021-05-03 15:23:24,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-03 15:23:24,512 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:24,512 INFO L551 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:24,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:24,725 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:24,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:24,725 INFO L82 PathProgramCache]: Analyzing trace with hash 412497268, now seen corresponding path program 29 times [2021-05-03 15:23:24,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:24,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843534837] [2021-05-03 15:23:24,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:24,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843534837] [2021-05-03 15:23:24,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137589824] [2021-05-03 15:23:24,761 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 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 15:23:24,788 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-05-03 15:23:24,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:24,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2021-05-03 15:23:24,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:24,890 INFO L354 Elim1Store]: treesize reduction 32, result has 34.7 percent of original size [2021-05-03 15:23:24,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 57 [2021-05-03 15:23:24,909 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:23:24,919 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:24,930 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:23:24,930 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:49 [2021-05-03 15:23:25,026 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-05-03 15:23:25,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 33 [2021-05-03 15:23:25,030 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:25,038 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:25,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 20 [2021-05-03 15:23:25,040 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:25,049 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:25,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 20 [2021-05-03 15:23:25,051 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:25,055 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:25,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 19 [2021-05-03 15:23:25,057 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:25,061 INFO L628 ElimStorePlain]: treesize reduction 9, result has 25.0 percent of original size [2021-05-03 15:23:25,062 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:25,062 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:137, output treesize:3 [2021-05-03 15:23:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:25,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:25,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2021-05-03 15:23:25,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307638653] [2021-05-03 15:23:25,073 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-03 15:23:25,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:25,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-03 15:23:25,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-05-03 15:23:25,073 INFO L87 Difference]: Start difference. First operand 1089 states and 2783 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 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) [2021-05-03 15:23:25,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:25,172 INFO L93 Difference]: Finished difference Result 1426 states and 3542 transitions. [2021-05-03 15:23:25,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 15:23:25,172 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 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 26 [2021-05-03 15:23:25,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:25,176 INFO L225 Difference]: With dead ends: 1426 [2021-05-03 15:23:25,176 INFO L226 Difference]: Without dead ends: 1419 [2021-05-03 15:23:25,176 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 103.1ms TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-05-03 15:23:25,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2021-05-03 15:23:25,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1225. [2021-05-03 15:23:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1224 states have (on average 2.5784313725490198) internal successors, (3156), 1224 states have internal predecessors, (3156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:25,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 3156 transitions. [2021-05-03 15:23:25,198 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 3156 transitions. Word has length 26 [2021-05-03 15:23:25,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:25,198 INFO L480 AbstractCegarLoop]: Abstraction has 1225 states and 3156 transitions. [2021-05-03 15:23:25,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 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) [2021-05-03 15:23:25,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 3156 transitions. [2021-05-03 15:23:25,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:25,201 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:25,201 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:25,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-05-03 15:23:25,417 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:25,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:25,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1387752458, now seen corresponding path program 30 times [2021-05-03 15:23:25,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:25,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577370043] [2021-05-03 15:23:25,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:25,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577370043] [2021-05-03 15:23:25,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375901136] [2021-05-03 15:23:25,495 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 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:25,514 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-05-03 15:23:25,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:25,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:25,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:25,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:25,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2021-05-03 15:23:25,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796642515] [2021-05-03 15:23:25,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-03 15:23:25,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:25,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-03 15:23:25,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2021-05-03 15:23:25,680 INFO L87 Difference]: Start difference. First operand 1225 states and 3156 transitions. Second operand has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 21 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:26,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:26,527 INFO L93 Difference]: Finished difference Result 1761 states and 4199 transitions. [2021-05-03 15:23:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-03 15:23:26,527 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 21 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-05-03 15:23:26,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:26,533 INFO L225 Difference]: With dead ends: 1761 [2021-05-03 15:23:26,533 INFO L226 Difference]: Without dead ends: 1761 [2021-05-03 15:23:26,534 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 720.4ms TimeCoverageRelationStatistics Valid=757, Invalid=2105, Unknown=0, NotChecked=0, Total=2862 [2021-05-03 15:23:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2021-05-03 15:23:26,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1090. [2021-05-03 15:23:26,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1089 states have (on average 2.5629017447199267) internal successors, (2791), 1089 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 2791 transitions. [2021-05-03 15:23:26,554 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 2791 transitions. Word has length 28 [2021-05-03 15:23:26,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:26,554 INFO L480 AbstractCegarLoop]: Abstraction has 1090 states and 2791 transitions. [2021-05-03 15:23:26,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 21 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:26,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 2791 transitions. [2021-05-03 15:23:26,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:26,556 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:26,556 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:26,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:26,773 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:26,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:26,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1570155570, now seen corresponding path program 31 times [2021-05-03 15:23:26,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:26,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937681981] [2021-05-03 15:23:26,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:26,854 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:26,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937681981] [2021-05-03 15:23:26,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891721824] [2021-05-03 15:23:26,855 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 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:26,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:26,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:27,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:27,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-05-03 15:23:27,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549199438] [2021-05-03 15:23:27,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-03 15:23:27,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:27,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-03 15:23:27,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2021-05-03 15:23:27,056 INFO L87 Difference]: Start difference. First operand 1090 states and 2791 transitions. Second operand has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 20 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:28,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:28,090 INFO L93 Difference]: Finished difference Result 2078 states and 4785 transitions. [2021-05-03 15:23:28,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-03 15:23:28,091 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 20 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-05-03 15:23:28,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:28,101 INFO L225 Difference]: With dead ends: 2078 [2021-05-03 15:23:28,101 INFO L226 Difference]: Without dead ends: 2007 [2021-05-03 15:23:28,102 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1149 ImplicationChecksByTransitivity, 960.3ms TimeCoverageRelationStatistics Valid=946, Invalid=3086, Unknown=0, NotChecked=0, Total=4032 [2021-05-03 15:23:28,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2021-05-03 15:23:28,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1154. [2021-05-03 15:23:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 2.5481352992194277) internal successors, (2938), 1153 states have internal predecessors, (2938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:28,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 2938 transitions. [2021-05-03 15:23:28,126 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 2938 transitions. Word has length 28 [2021-05-03 15:23:28,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:28,126 INFO L480 AbstractCegarLoop]: Abstraction has 1154 states and 2938 transitions. [2021-05-03 15:23:28,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 20 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:28,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 2938 transitions. [2021-05-03 15:23:28,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:28,128 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:28,128 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:28,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2021-05-03 15:23:28,336 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:28,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1031109750, now seen corresponding path program 32 times [2021-05-03 15:23:28,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:28,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246575619] [2021-05-03 15:23:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:28,386 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:28,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246575619] [2021-05-03 15:23:28,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841267591] [2021-05-03 15:23:28,387 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 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:28,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:23:28,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:28,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:28,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:28,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:28,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-05-03 15:23:28,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935762432] [2021-05-03 15:23:28,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-03 15:23:28,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:28,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-03 15:23:28,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-05-03 15:23:28,576 INFO L87 Difference]: Start difference. First operand 1154 states and 2938 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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) [2021-05-03 15:23:29,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:29,412 INFO L93 Difference]: Finished difference Result 2302 states and 5553 transitions. [2021-05-03 15:23:29,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-03 15:23:29,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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 28 [2021-05-03 15:23:29,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:29,417 INFO L225 Difference]: With dead ends: 2302 [2021-05-03 15:23:29,417 INFO L226 Difference]: Without dead ends: 2294 [2021-05-03 15:23:29,418 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 744.3ms TimeCoverageRelationStatistics Valid=836, Invalid=2134, Unknown=0, NotChecked=0, Total=2970 [2021-05-03 15:23:29,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2021-05-03 15:23:29,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 1436. [2021-05-03 15:23:29,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 2.5491289198606273) internal successors, (3658), 1435 states have internal predecessors, (3658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:29,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 3658 transitions. [2021-05-03 15:23:29,445 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 3658 transitions. Word has length 28 [2021-05-03 15:23:29,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:29,445 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 3658 transitions. [2021-05-03 15:23:29,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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) [2021-05-03 15:23:29,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 3658 transitions. [2021-05-03 15:23:29,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:29,447 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:29,447 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:29,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2021-05-03 15:23:29,653 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:29,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:29,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1879959464, now seen corresponding path program 33 times [2021-05-03 15:23:29,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:29,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391300646] [2021-05-03 15:23:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:29,701 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:29,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391300646] [2021-05-03 15:23:29,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156849359] [2021-05-03 15:23:29,701 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 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:29,722 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-05-03 15:23:29,722 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:29,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:29,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:29,921 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:29,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:29,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-05-03 15:23:29,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830381239] [2021-05-03 15:23:29,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-03 15:23:29,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:29,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-03 15:23:29,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-05-03 15:23:29,923 INFO L87 Difference]: Start difference. First operand 1436 states and 3658 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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) [2021-05-03 15:23:30,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:30,608 INFO L93 Difference]: Finished difference Result 1661 states and 4081 transitions. [2021-05-03 15:23:30,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-03 15:23:30,608 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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 28 [2021-05-03 15:23:30,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:30,612 INFO L225 Difference]: With dead ends: 1661 [2021-05-03 15:23:30,612 INFO L226 Difference]: Without dead ends: 1657 [2021-05-03 15:23:30,613 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 674.4ms TimeCoverageRelationStatistics Valid=647, Invalid=1903, Unknown=0, NotChecked=0, Total=2550 [2021-05-03 15:23:30,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2021-05-03 15:23:30,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1436. [2021-05-03 15:23:30,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 2.5477351916376305) internal successors, (3656), 1435 states have internal predecessors, (3656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 3656 transitions. [2021-05-03 15:23:30,630 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 3656 transitions. Word has length 28 [2021-05-03 15:23:30,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:30,631 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 3656 transitions. [2021-05-03 15:23:30,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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) [2021-05-03 15:23:30,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 3656 transitions. [2021-05-03 15:23:30,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:30,633 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:30,633 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:30,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-05-03 15:23:30,855 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:30,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:30,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1630957874, now seen corresponding path program 34 times [2021-05-03 15:23:30,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:30,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12945109] [2021-05-03 15:23:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:30,901 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:30,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12945109] [2021-05-03 15:23:30,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432219853] [2021-05-03 15:23:30,901 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 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:30,919 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:23:30,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:30,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:30,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:31,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:31,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-05-03 15:23:31,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118375052] [2021-05-03 15:23:31,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-03 15:23:31,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:31,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-03 15:23:31,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2021-05-03 15:23:31,081 INFO L87 Difference]: Start difference. First operand 1436 states and 3656 transitions. Second operand has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:31,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:31,660 INFO L93 Difference]: Finished difference Result 2041 states and 4979 transitions. [2021-05-03 15:23:31,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-03 15:23:31,661 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-05-03 15:23:31,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:31,664 INFO L225 Difference]: With dead ends: 2041 [2021-05-03 15:23:31,664 INFO L226 Difference]: Without dead ends: 2026 [2021-05-03 15:23:31,664 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 492.0ms TimeCoverageRelationStatistics Valid=421, Invalid=1301, Unknown=0, NotChecked=0, Total=1722 [2021-05-03 15:23:31,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2021-05-03 15:23:31,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1482. [2021-05-03 15:23:31,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 2.553004726536124) internal successors, (3781), 1481 states have internal predecessors, (3781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:31,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 3781 transitions. [2021-05-03 15:23:31,684 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 3781 transitions. Word has length 28 [2021-05-03 15:23:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:31,684 INFO L480 AbstractCegarLoop]: Abstraction has 1482 states and 3781 transitions. [2021-05-03 15:23:31,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 17 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:31,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 3781 transitions. [2021-05-03 15:23:31,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:31,687 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:31,687 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:31,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-05-03 15:23:31,895 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:31,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:31,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1524214334, now seen corresponding path program 35 times [2021-05-03 15:23:31,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:31,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497277816] [2021-05-03 15:23:31,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:31,950 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:31,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497277816] [2021-05-03 15:23:31,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596209149] [2021-05-03 15:23:31,950 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 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:31,970 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-05-03 15:23:31,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:31,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:31,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:32,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:32,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-05-03 15:23:32,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023278068] [2021-05-03 15:23:32,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-03 15:23:32,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:32,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-03 15:23:32,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2021-05-03 15:23:32,123 INFO L87 Difference]: Start difference. First operand 1482 states and 3781 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 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) [2021-05-03 15:23:32,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:32,828 INFO L93 Difference]: Finished difference Result 1955 states and 4722 transitions. [2021-05-03 15:23:32,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-03 15:23:32,828 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 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 28 [2021-05-03 15:23:32,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:32,831 INFO L225 Difference]: With dead ends: 1955 [2021-05-03 15:23:32,831 INFO L226 Difference]: Without dead ends: 1941 [2021-05-03 15:23:32,832 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 620.4ms TimeCoverageRelationStatistics Valid=680, Invalid=2076, Unknown=0, NotChecked=0, Total=2756 [2021-05-03 15:23:32,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2021-05-03 15:23:32,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1492. [2021-05-03 15:23:32,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1491 states have (on average 2.551307847082495) internal successors, (3804), 1491 states have internal predecessors, (3804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:32,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 3804 transitions. [2021-05-03 15:23:32,860 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 3804 transitions. Word has length 28 [2021-05-03 15:23:32,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:32,860 INFO L480 AbstractCegarLoop]: Abstraction has 1492 states and 3804 transitions. [2021-05-03 15:23:32,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 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) [2021-05-03 15:23:32,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 3804 transitions. [2021-05-03 15:23:32,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:32,862 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:32,862 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:33,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-05-03 15:23:33,083 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:33,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:33,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1020569282, now seen corresponding path program 36 times [2021-05-03 15:23:33,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:33,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190168135] [2021-05-03 15:23:33,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:33,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190168135] [2021-05-03 15:23:33,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851595765] [2021-05-03 15:23:33,149 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 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:33,176 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-03 15:23:33,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:33,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:33,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:33,320 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:33,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:33,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-05-03 15:23:33,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431975161] [2021-05-03 15:23:33,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:23:33,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:33,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:23:33,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:23:33,321 INFO L87 Difference]: Start difference. First operand 1492 states and 3804 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 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) [2021-05-03 15:23:34,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:34,014 INFO L93 Difference]: Finished difference Result 2120 states and 5066 transitions. [2021-05-03 15:23:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-03 15:23:34,015 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 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 28 [2021-05-03 15:23:34,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:34,019 INFO L225 Difference]: With dead ends: 2120 [2021-05-03 15:23:34,019 INFO L226 Difference]: Without dead ends: 2094 [2021-05-03 15:23:34,020 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 643.6ms TimeCoverageRelationStatistics Valid=724, Invalid=2246, Unknown=0, NotChecked=0, Total=2970 [2021-05-03 15:23:34,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2021-05-03 15:23:34,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 1363. [2021-05-03 15:23:34,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1362 states have (on average 2.530102790014684) internal successors, (3446), 1362 states have internal predecessors, (3446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:34,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 3446 transitions. [2021-05-03 15:23:34,045 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 3446 transitions. Word has length 28 [2021-05-03 15:23:34,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:34,045 INFO L480 AbstractCegarLoop]: Abstraction has 1363 states and 3446 transitions. [2021-05-03 15:23:34,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 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) [2021-05-03 15:23:34,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 3446 transitions. [2021-05-03 15:23:34,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:34,047 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:34,047 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:34,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-05-03 15:23:34,268 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:34,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:34,269 INFO L82 PathProgramCache]: Analyzing trace with hash 873893366, now seen corresponding path program 37 times [2021-05-03 15:23:34,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:34,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286218835] [2021-05-03 15:23:34,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:34,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286218835] [2021-05-03 15:23:34,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168283684] [2021-05-03 15:23:34,344 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 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:34,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:34,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:34,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:34,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-05-03 15:23:34,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059853797] [2021-05-03 15:23:34,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-03 15:23:34,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:34,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-03 15:23:34,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-05-03 15:23:34,537 INFO L87 Difference]: Start difference. First operand 1363 states and 3446 transitions. Second operand has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 20 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:35,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:35,224 INFO L93 Difference]: Finished difference Result 2078 states and 4835 transitions. [2021-05-03 15:23:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-03 15:23:35,225 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 20 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-05-03 15:23:35,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:35,228 INFO L225 Difference]: With dead ends: 2078 [2021-05-03 15:23:35,228 INFO L226 Difference]: Without dead ends: 2078 [2021-05-03 15:23:35,229 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 628.0ms TimeCoverageRelationStatistics Valid=756, Invalid=2106, Unknown=0, NotChecked=0, Total=2862 [2021-05-03 15:23:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2021-05-03 15:23:35,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1171. [2021-05-03 15:23:35,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1170 states have (on average 2.500854700854701) internal successors, (2926), 1170 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:35,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 2926 transitions. [2021-05-03 15:23:35,249 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 2926 transitions. Word has length 28 [2021-05-03 15:23:35,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:35,250 INFO L480 AbstractCegarLoop]: Abstraction has 1171 states and 2926 transitions. [2021-05-03 15:23:35,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 20 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:35,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 2926 transitions. [2021-05-03 15:23:35,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:35,251 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:35,251 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:35,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2021-05-03 15:23:35,465 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:35,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:35,465 INFO L82 PathProgramCache]: Analyzing trace with hash 876971314, now seen corresponding path program 38 times [2021-05-03 15:23:35,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:35,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814540425] [2021-05-03 15:23:35,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:35,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814540425] [2021-05-03 15:23:35,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877931316] [2021-05-03 15:23:35,532 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 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 15:23:35,567 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:23:35,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:35,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:35,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:35,722 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:35,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:35,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-05-03 15:23:35,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323346845] [2021-05-03 15:23:35,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:23:35,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:35,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:23:35,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:23:35,723 INFO L87 Difference]: Start difference. First operand 1171 states and 2926 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:36,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:36,454 INFO L93 Difference]: Finished difference Result 1575 states and 3659 transitions. [2021-05-03 15:23:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-03 15:23:36,455 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 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 28 [2021-05-03 15:23:36,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:36,458 INFO L225 Difference]: With dead ends: 1575 [2021-05-03 15:23:36,458 INFO L226 Difference]: Without dead ends: 1536 [2021-05-03 15:23:36,459 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 642.1ms TimeCoverageRelationStatistics Valid=599, Invalid=2053, Unknown=0, NotChecked=0, Total=2652 [2021-05-03 15:23:36,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2021-05-03 15:23:36,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1078. [2021-05-03 15:23:36,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1077 states have (on average 2.4753946146703805) internal successors, (2666), 1077 states have internal predecessors, (2666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:36,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 2666 transitions. [2021-05-03 15:23:36,478 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 2666 transitions. Word has length 28 [2021-05-03 15:23:36,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:36,479 INFO L480 AbstractCegarLoop]: Abstraction has 1078 states and 2666 transitions. [2021-05-03 15:23:36,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:36,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 2666 transitions. [2021-05-03 15:23:36,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:36,481 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:36,481 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:36,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:36,697 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:36,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:36,697 INFO L82 PathProgramCache]: Analyzing trace with hash 706414582, now seen corresponding path program 39 times [2021-05-03 15:23:36,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:36,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911417780] [2021-05-03 15:23:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:36,770 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:36,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911417780] [2021-05-03 15:23:36,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923827154] [2021-05-03 15:23:36,770 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 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:36,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-05-03 15:23:36,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:36,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:36,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:36,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:36,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-05-03 15:23:36,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043810093] [2021-05-03 15:23:36,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:23:36,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:36,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:23:36,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:23:36,967 INFO L87 Difference]: Start difference. First operand 1078 states and 2666 transitions. Second operand has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:37,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:37,805 INFO L93 Difference]: Finished difference Result 1983 states and 4574 transitions. [2021-05-03 15:23:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-03 15:23:37,806 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-05-03 15:23:37,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:37,809 INFO L225 Difference]: With dead ends: 1983 [2021-05-03 15:23:37,809 INFO L226 Difference]: Without dead ends: 1983 [2021-05-03 15:23:37,810 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 756.3ms TimeCoverageRelationStatistics Valid=892, Invalid=2300, Unknown=0, NotChecked=0, Total=3192 [2021-05-03 15:23:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2021-05-03 15:23:37,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1181. [2021-05-03 15:23:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 1180 states have (on average 2.440677966101695) internal successors, (2880), 1180 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:37,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 2880 transitions. [2021-05-03 15:23:37,831 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 2880 transitions. Word has length 28 [2021-05-03 15:23:37,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:37,831 INFO L480 AbstractCegarLoop]: Abstraction has 1181 states and 2880 transitions. [2021-05-03 15:23:37,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:37,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 2880 transitions. [2021-05-03 15:23:37,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:37,833 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:37,833 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:38,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2021-05-03 15:23:38,049 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:38,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:38,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1792450098, now seen corresponding path program 40 times [2021-05-03 15:23:38,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:38,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526561789] [2021-05-03 15:23:38,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:38,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526561789] [2021-05-03 15:23:38,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201182469] [2021-05-03 15:23:38,103 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 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:38,122 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:23:38,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:38,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:38,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:38,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:38,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-05-03 15:23:38,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820377764] [2021-05-03 15:23:38,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-03 15:23:38,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:38,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-03 15:23:38,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2021-05-03 15:23:38,300 INFO L87 Difference]: Start difference. First operand 1181 states and 2880 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:38,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:38,969 INFO L93 Difference]: Finished difference Result 1515 states and 3517 transitions. [2021-05-03 15:23:38,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-03 15:23:38,970 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 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 28 [2021-05-03 15:23:38,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:38,971 INFO L225 Difference]: With dead ends: 1515 [2021-05-03 15:23:38,971 INFO L226 Difference]: Without dead ends: 1497 [2021-05-03 15:23:38,972 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 564.6ms TimeCoverageRelationStatistics Valid=519, Invalid=1737, Unknown=0, NotChecked=0, Total=2256 [2021-05-03 15:23:38,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2021-05-03 15:23:38,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1209. [2021-05-03 15:23:38,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1208 states have (on average 2.447019867549669) internal successors, (2956), 1208 states have internal predecessors, (2956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:38,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 2956 transitions. [2021-05-03 15:23:38,990 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 2956 transitions. Word has length 28 [2021-05-03 15:23:38,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:38,990 INFO L480 AbstractCegarLoop]: Abstraction has 1209 states and 2956 transitions. [2021-05-03 15:23:38,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:38,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 2956 transitions. [2021-05-03 15:23:38,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:38,992 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:38,992 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:39,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:39,205 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:39,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:39,205 INFO L82 PathProgramCache]: Analyzing trace with hash -352976394, now seen corresponding path program 41 times [2021-05-03 15:23:39,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:39,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123666873] [2021-05-03 15:23:39,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:39,261 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:39,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123666873] [2021-05-03 15:23:39,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517205947] [2021-05-03 15:23:39,261 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 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:39,280 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-05-03 15:23:39,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:39,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:39,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:39,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:39,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-05-03 15:23:39,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030873075] [2021-05-03 15:23:39,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-03 15:23:39,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:39,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-03 15:23:39,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-05-03 15:23:39,423 INFO L87 Difference]: Start difference. First operand 1209 states and 2956 transitions. Second operand has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:40,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:40,265 INFO L93 Difference]: Finished difference Result 2391 states and 5676 transitions. [2021-05-03 15:23:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-03 15:23:40,265 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-05-03 15:23:40,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:40,267 INFO L225 Difference]: With dead ends: 2391 [2021-05-03 15:23:40,267 INFO L226 Difference]: Without dead ends: 2391 [2021-05-03 15:23:40,268 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1207 ImplicationChecksByTransitivity, 750.5ms TimeCoverageRelationStatistics Valid=1080, Invalid=2580, Unknown=0, NotChecked=0, Total=3660 [2021-05-03 15:23:40,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2021-05-03 15:23:40,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 1853. [2021-05-03 15:23:40,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1852 states have (on average 2.5) internal successors, (4630), 1852 states have internal predecessors, (4630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:40,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 4630 transitions. [2021-05-03 15:23:40,295 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 4630 transitions. Word has length 28 [2021-05-03 15:23:40,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:40,295 INFO L480 AbstractCegarLoop]: Abstraction has 1853 states and 4630 transitions. [2021-05-03 15:23:40,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:40,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 4630 transitions. [2021-05-03 15:23:40,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:40,297 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:40,297 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:40,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:40,518 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:40,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:40,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1995970268, now seen corresponding path program 42 times [2021-05-03 15:23:40,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:40,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059328275] [2021-05-03 15:23:40,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:40,569 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:40,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059328275] [2021-05-03 15:23:40,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63265053] [2021-05-03 15:23:40,569 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 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:40,609 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-05-03 15:23:40,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:40,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:40,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:40,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:40,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-05-03 15:23:40,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857352089] [2021-05-03 15:23:40,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-03 15:23:40,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:40,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-03 15:23:40,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-05-03 15:23:40,775 INFO L87 Difference]: Start difference. First operand 1853 states and 4630 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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) [2021-05-03 15:23:41,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:41,340 INFO L93 Difference]: Finished difference Result 2323 states and 5527 transitions. [2021-05-03 15:23:41,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-03 15:23:41,341 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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 28 [2021-05-03 15:23:41,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:41,343 INFO L225 Difference]: With dead ends: 2323 [2021-05-03 15:23:41,343 INFO L226 Difference]: Without dead ends: 2319 [2021-05-03 15:23:41,343 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 525.6ms TimeCoverageRelationStatistics Valid=634, Invalid=1622, Unknown=0, NotChecked=0, Total=2256 [2021-05-03 15:23:41,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2021-05-03 15:23:41,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 1827. [2021-05-03 15:23:41,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1826 states have (on average 2.4961664841182913) internal successors, (4558), 1826 states have internal predecessors, (4558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:41,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 4558 transitions. [2021-05-03 15:23:41,394 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 4558 transitions. Word has length 28 [2021-05-03 15:23:41,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:41,394 INFO L480 AbstractCegarLoop]: Abstraction has 1827 states and 4558 transitions. [2021-05-03 15:23:41,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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) [2021-05-03 15:23:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 4558 transitions. [2021-05-03 15:23:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:41,397 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:41,397 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:41,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:41,613 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:41,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:41,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1489624002, now seen corresponding path program 43 times [2021-05-03 15:23:41,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:41,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151548764] [2021-05-03 15:23:41,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:41,668 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:41,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151548764] [2021-05-03 15:23:41,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945646051] [2021-05-03 15:23:41,669 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 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:41,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:41,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:41,832 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:41,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:41,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2021-05-03 15:23:41,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459536062] [2021-05-03 15:23:41,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-03 15:23:41,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:41,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-03 15:23:41,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-05-03 15:23:41,833 INFO L87 Difference]: Start difference. First operand 1827 states and 4558 transitions. Second operand has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 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) [2021-05-03 15:23:42,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:42,410 INFO L93 Difference]: Finished difference Result 2472 states and 5895 transitions. [2021-05-03 15:23:42,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-03 15:23:42,410 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 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 28 [2021-05-03 15:23:42,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:42,413 INFO L225 Difference]: With dead ends: 2472 [2021-05-03 15:23:42,413 INFO L226 Difference]: Without dead ends: 2460 [2021-05-03 15:23:42,413 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 535.7ms TimeCoverageRelationStatistics Valid=613, Invalid=1739, Unknown=0, NotChecked=0, Total=2352 [2021-05-03 15:23:42,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2021-05-03 15:23:42,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1976. [2021-05-03 15:23:42,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1975 states have (on average 2.5063291139240507) internal successors, (4950), 1975 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:42,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 4950 transitions. [2021-05-03 15:23:42,436 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 4950 transitions. Word has length 28 [2021-05-03 15:23:42,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:42,436 INFO L480 AbstractCegarLoop]: Abstraction has 1976 states and 4950 transitions. [2021-05-03 15:23:42,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 18 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) [2021-05-03 15:23:42,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 4950 transitions. [2021-05-03 15:23:42,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:42,438 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:42,438 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:42,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:42,639 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:42,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:42,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1262402622, now seen corresponding path program 44 times [2021-05-03 15:23:42,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:42,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177204877] [2021-05-03 15:23:42,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:42,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177204877] [2021-05-03 15:23:42,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349860209] [2021-05-03 15:23:42,700 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 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:42,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:23:42,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:42,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:42,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:42,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:42,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2021-05-03 15:23:42,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598875075] [2021-05-03 15:23:42,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:23:42,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:42,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:23:42,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:23:42,895 INFO L87 Difference]: Start difference. First operand 1976 states and 4950 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 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) [2021-05-03 15:23:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:43,550 INFO L93 Difference]: Finished difference Result 2770 states and 6589 transitions. [2021-05-03 15:23:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-03 15:23:43,551 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 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 28 [2021-05-03 15:23:43,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:43,553 INFO L225 Difference]: With dead ends: 2770 [2021-05-03 15:23:43,553 INFO L226 Difference]: Without dead ends: 2750 [2021-05-03 15:23:43,554 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 619.2ms TimeCoverageRelationStatistics Valid=662, Invalid=1990, Unknown=0, NotChecked=0, Total=2652 [2021-05-03 15:23:43,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2021-05-03 15:23:43,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2206. [2021-05-03 15:23:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 2.510204081632653) internal successors, (5535), 2205 states have internal predecessors, (5535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:43,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5535 transitions. [2021-05-03 15:23:43,580 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5535 transitions. Word has length 28 [2021-05-03 15:23:43,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:43,580 INFO L480 AbstractCegarLoop]: Abstraction has 2206 states and 5535 transitions. [2021-05-03 15:23:43,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 19 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) [2021-05-03 15:23:43,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5535 transitions. [2021-05-03 15:23:43,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-03 15:23:43,582 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:43,582 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:43,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-05-03 15:23:43,782 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:43,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:43,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1945988538, now seen corresponding path program 45 times [2021-05-03 15:23:43,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:43,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556611738] [2021-05-03 15:23:43,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:43,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556611738] [2021-05-03 15:23:43,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219174556] [2021-05-03 15:23:43,856 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 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 15:23:43,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-05-03 15:23:43,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:43,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 15:23:43,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:44,043 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:44,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:44,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-05-03 15:23:44,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124930497] [2021-05-03 15:23:44,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-03 15:23:44,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:44,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-03 15:23:44,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-05-03 15:23:44,044 INFO L87 Difference]: Start difference. First operand 2206 states and 5535 transitions. Second operand has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 20 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) [2021-05-03 15:23:44,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:44,755 INFO L93 Difference]: Finished difference Result 2769 states and 6659 transitions. [2021-05-03 15:23:44,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-03 15:23:44,755 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 20 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 28 [2021-05-03 15:23:44,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:44,758 INFO L225 Difference]: With dead ends: 2769 [2021-05-03 15:23:44,758 INFO L226 Difference]: Without dead ends: 2741 [2021-05-03 15:23:44,761 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 683.1ms TimeCoverageRelationStatistics Valid=778, Invalid=2414, Unknown=0, NotChecked=0, Total=3192 [2021-05-03 15:23:44,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2021-05-03 15:23:44,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2259. [2021-05-03 15:23:44,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2259 states, 2258 states have (on average 2.5230292294065544) internal successors, (5697), 2258 states have internal predecessors, (5697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:44,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 5697 transitions. [2021-05-03 15:23:44,791 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 5697 transitions. Word has length 28 [2021-05-03 15:23:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:44,791 INFO L480 AbstractCegarLoop]: Abstraction has 2259 states and 5697 transitions. [2021-05-03 15:23:44,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 20 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) [2021-05-03 15:23:44,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 5697 transitions. [2021-05-03 15:23:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-03 15:23:44,793 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:44,793 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:44,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-05-03 15:23:44,994 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:44,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:44,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1181662516, now seen corresponding path program 46 times [2021-05-03 15:23:44,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:44,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472581059] [2021-05-03 15:23:44,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:45,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472581059] [2021-05-03 15:23:45,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103269023] [2021-05-03 15:23:45,032 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 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:45,063 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:23:45,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:45,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-05-03 15:23:45,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:45,153 INFO L354 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2021-05-03 15:23:45,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 65 [2021-05-03 15:23:45,155 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:45,173 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:45,174 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:45,174 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:92 [2021-05-03 15:23:45,616 INFO L354 Elim1Store]: treesize reduction 41, result has 16.3 percent of original size [2021-05-03 15:23:45,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 38 [2021-05-03 15:23:45,618 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:45,672 INFO L628 ElimStorePlain]: treesize reduction 51, result has 73.4 percent of original size [2021-05-03 15:23:45,689 INFO L354 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2021-05-03 15:23:45,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 28 [2021-05-03 15:23:45,690 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:45,709 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:45,735 INFO L354 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2021-05-03 15:23:45,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-05-03 15:23:45,737 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:45,743 INFO L628 ElimStorePlain]: treesize reduction 56, result has 5.1 percent of original size [2021-05-03 15:23:45,743 INFO L518 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination [2021-05-03 15:23:45,744 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:45,744 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:242, output treesize:3 [2021-05-03 15:23:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:45,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:45,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-05-03 15:23:45,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370422947] [2021-05-03 15:23:45,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-03 15:23:45,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:45,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-03 15:23:45,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:45,750 INFO L87 Difference]: Start difference. First operand 2259 states and 5697 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:45,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:45,849 INFO L93 Difference]: Finished difference Result 2998 states and 7342 transitions. [2021-05-03 15:23:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 15:23:45,850 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-05-03 15:23:45,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:45,853 INFO L225 Difference]: With dead ends: 2998 [2021-05-03 15:23:45,853 INFO L226 Difference]: Without dead ends: 2991 [2021-05-03 15:23:45,853 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 266.9ms TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2021-05-03 15:23:45,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2615. [2021-05-03 15:23:45,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2614 states have (on average 2.5355776587605203) internal successors, (6628), 2614 states have internal predecessors, (6628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:45,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 6628 transitions. [2021-05-03 15:23:45,884 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 6628 transitions. Word has length 30 [2021-05-03 15:23:45,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:45,884 INFO L480 AbstractCegarLoop]: Abstraction has 2615 states and 6628 transitions. [2021-05-03 15:23:45,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:45,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 6628 transitions. [2021-05-03 15:23:45,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-03 15:23:45,887 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:45,887 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:46,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-05-03 15:23:46,088 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:46,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:46,088 INFO L82 PathProgramCache]: Analyzing trace with hash 61643060, now seen corresponding path program 47 times [2021-05-03 15:23:46,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:46,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532430046] [2021-05-03 15:23:46,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:46,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532430046] [2021-05-03 15:23:46,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395963457] [2021-05-03 15:23:46,124 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 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:46,162 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-03 15:23:46,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:46,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-03 15:23:46,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:46,332 INFO L354 Elim1Store]: treesize reduction 114, result has 37.0 percent of original size [2021-05-03 15:23:46,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 99 [2021-05-03 15:23:46,335 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,348 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:46,349 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,349 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:82, output treesize:86 [2021-05-03 15:23:46,467 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-05-03 15:23:46,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 27 [2021-05-03 15:23:46,469 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,478 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:46,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 1 [2021-05-03 15:23:46,479 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,492 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-05-03 15:23:46,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 25 [2021-05-03 15:23:46,494 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,501 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:46,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 20 [2021-05-03 15:23:46,503 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,515 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-05-03 15:23:46,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 29 [2021-05-03 15:23:46,516 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,523 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:46,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 20 [2021-05-03 15:23:46,525 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,532 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:46,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 24 [2021-05-03 15:23:46,534 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,542 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:46,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 23 [2021-05-03 15:23:46,543 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,551 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:46,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 17 [2021-05-03 15:23:46,552 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,564 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-05-03 15:23:46,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 28 [2021-05-03 15:23:46,566 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,589 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:46,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 24 [2021-05-03 15:23:46,591 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,598 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:46,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 21 [2021-05-03 15:23:46,599 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,604 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-05-03 15:23:46,604 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 13 [2021-05-03 15:23:46,605 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,610 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-05-03 15:23:46,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 28 [2021-05-03 15:23:46,612 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,613 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:46,614 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:46,614 INFO L247 ElimStorePlain]: Needed 15 recursive calls to eliminate 2 variables, input treesize:623, output treesize:3 [2021-05-03 15:23:46,626 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:46,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:46,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-05-03 15:23:46,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135234874] [2021-05-03 15:23:46,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-03 15:23:46,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:46,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-03 15:23:46,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:46,627 INFO L87 Difference]: Start difference. First operand 2615 states and 6628 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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) [2021-05-03 15:23:46,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:46,762 INFO L93 Difference]: Finished difference Result 3125 states and 7770 transitions. [2021-05-03 15:23:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 15:23:46,762 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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 30 [2021-05-03 15:23:46,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:46,766 INFO L225 Difference]: With dead ends: 3125 [2021-05-03 15:23:46,766 INFO L226 Difference]: Without dead ends: 3109 [2021-05-03 15:23:46,766 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 124.6ms TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:46,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-05-03 15:23:46,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2831. [2021-05-03 15:23:46,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2830 states have (on average 2.5547703180212014) internal successors, (7230), 2830 states have internal predecessors, (7230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:46,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 7230 transitions. [2021-05-03 15:23:46,811 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 7230 transitions. Word has length 30 [2021-05-03 15:23:46,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:46,811 INFO L480 AbstractCegarLoop]: Abstraction has 2831 states and 7230 transitions. [2021-05-03 15:23:46,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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) [2021-05-03 15:23:46,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 7230 transitions. [2021-05-03 15:23:46,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-03 15:23:46,815 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:46,815 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:47,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:47,029 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:47,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:47,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1458216244, now seen corresponding path program 48 times [2021-05-03 15:23:47,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:47,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626537479] [2021-05-03 15:23:47,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:47,062 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:47,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626537479] [2021-05-03 15:23:47,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488131245] [2021-05-03 15:23:47,063 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 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:47,131 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-05-03 15:23:47,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:47,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-03 15:23:47,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:47,281 INFO L446 ElimStorePlain]: Different costs {10=[f], 15=[f_inv]} [2021-05-03 15:23:47,324 INFO L354 Elim1Store]: treesize reduction 45, result has 44.4 percent of original size [2021-05-03 15:23:47,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 123 treesize of output 96 [2021-05-03 15:23:47,391 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:23:47,429 INFO L628 ElimStorePlain]: treesize reduction 11, result has 91.0 percent of original size [2021-05-03 15:23:47,453 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:47,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 96 [2021-05-03 15:23:47,483 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:47,485 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:47,485 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:47,485 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:123, output treesize:3 [2021-05-03 15:23:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:47,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:47,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-05-03 15:23:47,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57010655] [2021-05-03 15:23:47,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-03 15:23:47,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:47,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-03 15:23:47,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:47,494 INFO L87 Difference]: Start difference. First operand 2831 states and 7230 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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) [2021-05-03 15:23:47,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:47,584 INFO L93 Difference]: Finished difference Result 3299 states and 8293 transitions. [2021-05-03 15:23:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 15:23:47,584 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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 30 [2021-05-03 15:23:47,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:47,588 INFO L225 Difference]: With dead ends: 3299 [2021-05-03 15:23:47,588 INFO L226 Difference]: Without dead ends: 3281 [2021-05-03 15:23:47,588 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 123.4ms TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:47,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2021-05-03 15:23:47,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3017. [2021-05-03 15:23:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 3016 states have (on average 2.570954907161804) internal successors, (7754), 3016 states have internal predecessors, (7754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:47,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 7754 transitions. [2021-05-03 15:23:47,623 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 7754 transitions. Word has length 30 [2021-05-03 15:23:47,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:47,623 INFO L480 AbstractCegarLoop]: Abstraction has 3017 states and 7754 transitions. [2021-05-03 15:23:47,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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) [2021-05-03 15:23:47,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 7754 transitions. [2021-05-03 15:23:47,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-03 15:23:47,626 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:47,626 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:47,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:47,827 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:47,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:47,827 INFO L82 PathProgramCache]: Analyzing trace with hash -759717580, now seen corresponding path program 49 times [2021-05-03 15:23:47,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:47,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521034716] [2021-05-03 15:23:47,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:47,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521034716] [2021-05-03 15:23:47,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698762932] [2021-05-03 15:23:47,860 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 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:47,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-05-03 15:23:47,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:47,998 INFO L354 Elim1Store]: treesize reduction 16, result has 70.9 percent of original size [2021-05-03 15:23:47,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 69 [2021-05-03 15:23:48,007 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:48,022 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:48,023 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:48,023 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:96 [2021-05-03 15:23:48,349 INFO L446 ElimStorePlain]: Different costs {3=[v_prenex_28], 6=[f, v_prenex_27, v_prenex_26]} [2021-05-03 15:23:48,356 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-05-03 15:23:48,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 25 [2021-05-03 15:23:48,357 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:48,414 INFO L628 ElimStorePlain]: treesize reduction 57, result has 69.7 percent of original size [2021-05-03 15:23:48,444 INFO L354 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2021-05-03 15:23:48,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 49 [2021-05-03 15:23:48,448 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:48,491 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:48,503 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-05-03 15:23:48,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 28 [2021-05-03 15:23:48,505 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:48,520 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:48,533 INFO L354 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2021-05-03 15:23:48,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 26 [2021-05-03 15:23:48,535 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:48,547 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:48,549 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:48,549 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:240, output treesize:3 [2021-05-03 15:23:48,558 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:48,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:48,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-05-03 15:23:48,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719490244] [2021-05-03 15:23:48,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-03 15:23:48,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:48,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-03 15:23:48,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:48,560 INFO L87 Difference]: Start difference. First operand 3017 states and 7754 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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) [2021-05-03 15:23:48,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:48,765 INFO L93 Difference]: Finished difference Result 3711 states and 9322 transitions. [2021-05-03 15:23:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 15:23:48,773 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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 30 [2021-05-03 15:23:48,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:48,778 INFO L225 Difference]: With dead ends: 3711 [2021-05-03 15:23:48,778 INFO L226 Difference]: Without dead ends: 3682 [2021-05-03 15:23:48,778 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 242.1ms TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:48,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2021-05-03 15:23:48,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3254. [2021-05-03 15:23:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3254 states, 3253 states have (on average 2.5853058715032278) internal successors, (8410), 3253 states have internal predecessors, (8410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:48,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 8410 transitions. [2021-05-03 15:23:48,822 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 8410 transitions. Word has length 30 [2021-05-03 15:23:48,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:48,822 INFO L480 AbstractCegarLoop]: Abstraction has 3254 states and 8410 transitions. [2021-05-03 15:23:48,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 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) [2021-05-03 15:23:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 8410 transitions. [2021-05-03 15:23:48,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-03 15:23:48,825 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:48,825 INFO L551 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:49,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:49,030 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:49,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:49,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1890343628, now seen corresponding path program 50 times [2021-05-03 15:23:49,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:49,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202982921] [2021-05-03 15:23:49,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:49,064 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:49,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202982921] [2021-05-03 15:23:49,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283394462] [2021-05-03 15:23:49,064 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 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:49,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:23:49,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:49,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2021-05-03 15:23:49,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:49,197 INFO L354 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2021-05-03 15:23:49,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 65 [2021-05-03 15:23:49,199 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:49,216 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:23:49,217 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:49,217 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:92 [2021-05-03 15:23:49,663 INFO L354 Elim1Store]: treesize reduction 46, result has 6.1 percent of original size [2021-05-03 15:23:49,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 33 [2021-05-03 15:23:49,665 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:49,722 INFO L628 ElimStorePlain]: treesize reduction 52, result has 72.9 percent of original size [2021-05-03 15:23:49,757 INFO L354 Elim1Store]: treesize reduction 24, result has 51.0 percent of original size [2021-05-03 15:23:49,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-05-03 15:23:49,760 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:23:49,769 INFO L628 ElimStorePlain]: treesize reduction 93, result has 3.1 percent of original size [2021-05-03 15:23:49,769 INFO L518 ElimStorePlain]: Eliminatee v_prenex_35 vanished before elimination [2021-05-03 15:23:49,769 INFO L518 ElimStorePlain]: Eliminatee v_prenex_37 vanished before elimination [2021-05-03 15:23:49,770 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:23:49,770 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:242, output treesize:3 [2021-05-03 15:23:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:23:49,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:49,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2021-05-03 15:23:49,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220418031] [2021-05-03 15:23:49,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-03 15:23:49,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:49,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-03 15:23:49,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:49,783 INFO L87 Difference]: Start difference. First operand 3254 states and 8410 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 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) [2021-05-03 15:23:50,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:50,047 INFO L93 Difference]: Finished difference Result 3930 states and 9906 transitions. [2021-05-03 15:23:50,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 15:23:50,048 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 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 30 [2021-05-03 15:23:50,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:50,053 INFO L225 Difference]: With dead ends: 3930 [2021-05-03 15:23:50,053 INFO L226 Difference]: Without dead ends: 3923 [2021-05-03 15:23:50,053 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 261.5ms TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-05-03 15:23:50,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3923 states. [2021-05-03 15:23:50,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3923 to 3481. [2021-05-03 15:23:50,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3481 states, 3480 states have (on average 2.5977011494252875) internal successors, (9040), 3480 states have internal predecessors, (9040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 9040 transitions. [2021-05-03 15:23:50,115 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 9040 transitions. Word has length 30 [2021-05-03 15:23:50,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:50,115 INFO L480 AbstractCegarLoop]: Abstraction has 3481 states and 9040 transitions. [2021-05-03 15:23:50,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 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) [2021-05-03 15:23:50,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 9040 transitions. [2021-05-03 15:23:50,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:23:50,120 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:50,120 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:50,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-05-03 15:23:50,333 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:50,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:50,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1501992374, now seen corresponding path program 51 times [2021-05-03 15:23:50,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:50,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342301030] [2021-05-03 15:23:50,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:50,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342301030] [2021-05-03 15:23:50,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63672903] [2021-05-03 15:23:50,449 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 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:50,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-05-03 15:23:50,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:50,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:23:50,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:50,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:50,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 25 [2021-05-03 15:23:50,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625111196] [2021-05-03 15:23:50,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-03 15:23:50,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:50,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-03 15:23:50,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2021-05-03 15:23:50,724 INFO L87 Difference]: Start difference. First operand 3481 states and 9040 transitions. Second operand has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:51,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:51,896 INFO L93 Difference]: Finished difference Result 4394 states and 10868 transitions. [2021-05-03 15:23:51,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-03 15:23:51,896 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-05-03 15:23:51,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:51,900 INFO L225 Difference]: With dead ends: 4394 [2021-05-03 15:23:51,900 INFO L226 Difference]: Without dead ends: 4394 [2021-05-03 15:23:51,901 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 1074.1ms TimeCoverageRelationStatistics Valid=1299, Invalid=3671, Unknown=0, NotChecked=0, Total=4970 [2021-05-03 15:23:51,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2021-05-03 15:23:51,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3164. [2021-05-03 15:23:51,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3164 states, 3163 states have (on average 2.5861523869743914) internal successors, (8180), 3163 states have internal predecessors, (8180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:51,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 8180 transitions. [2021-05-03 15:23:51,943 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 8180 transitions. Word has length 32 [2021-05-03 15:23:51,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:51,943 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 8180 transitions. [2021-05-03 15:23:51,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:51,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 8180 transitions. [2021-05-03 15:23:51,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:23:51,946 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:51,946 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:52,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable216 [2021-05-03 15:23:52,147 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:52,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:52,147 INFO L82 PathProgramCache]: Analyzing trace with hash 783257330, now seen corresponding path program 52 times [2021-05-03 15:23:52,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:52,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634331916] [2021-05-03 15:23:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:52,241 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:52,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634331916] [2021-05-03 15:23:52,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550111903] [2021-05-03 15:23:52,241 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 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:52,266 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:23:52,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:52,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:23:52,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:52,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:52,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-05-03 15:23:52,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526972607] [2021-05-03 15:23:52,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 15:23:52,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:52,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 15:23:52,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2021-05-03 15:23:52,464 INFO L87 Difference]: Start difference. First operand 3164 states and 8180 transitions. Second operand has 25 states, 25 states have (on average 2.24) internal successors, (56), 24 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:54,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:54,043 INFO L93 Difference]: Finished difference Result 5243 states and 12644 transitions. [2021-05-03 15:23:54,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-05-03 15:23:54,043 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 24 states have internal predecessors, (56), 0 states have call successors, (0), 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 32 [2021-05-03 15:23:54,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:54,048 INFO L225 Difference]: With dead ends: 5243 [2021-05-03 15:23:54,048 INFO L226 Difference]: Without dead ends: 5139 [2021-05-03 15:23:54,049 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2425 ImplicationChecksByTransitivity, 1479.8ms TimeCoverageRelationStatistics Valid=1756, Invalid=6076, Unknown=0, NotChecked=0, Total=7832 [2021-05-03 15:23:54,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5139 states. [2021-05-03 15:23:54,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5139 to 3339. [2021-05-03 15:23:54,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3339 states, 3338 states have (on average 2.5820850808867584) internal successors, (8619), 3338 states have internal predecessors, (8619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:54,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 8619 transitions. [2021-05-03 15:23:54,101 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 8619 transitions. Word has length 32 [2021-05-03 15:23:54,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:54,101 INFO L480 AbstractCegarLoop]: Abstraction has 3339 states and 8619 transitions. [2021-05-03 15:23:54,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 24 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:54,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 8619 transitions. [2021-05-03 15:23:54,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:23:54,104 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:54,104 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:54,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable217 [2021-05-03 15:23:54,316 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:54,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:54,317 INFO L82 PathProgramCache]: Analyzing trace with hash 325676430, now seen corresponding path program 53 times [2021-05-03 15:23:54,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:54,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272834694] [2021-05-03 15:23:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:54,400 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:54,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272834694] [2021-05-03 15:23:54,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367416239] [2021-05-03 15:23:54,401 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 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 15:23:54,437 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-03 15:23:54,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:54,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:23:54,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:54,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:54,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-05-03 15:23:54,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643934408] [2021-05-03 15:23:54,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-03 15:23:54,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:54,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-03 15:23:54,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2021-05-03 15:23:54,659 INFO L87 Difference]: Start difference. First operand 3339 states and 8619 transitions. Second operand has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:56,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:56,120 INFO L93 Difference]: Finished difference Result 6359 states and 15875 transitions. [2021-05-03 15:23:56,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-05-03 15:23:56,121 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 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 32 [2021-05-03 15:23:56,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:56,127 INFO L225 Difference]: With dead ends: 6359 [2021-05-03 15:23:56,127 INFO L226 Difference]: Without dead ends: 6347 [2021-05-03 15:23:56,127 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1905 ImplicationChecksByTransitivity, 1331.8ms TimeCoverageRelationStatistics Valid=1604, Invalid=4248, Unknown=0, NotChecked=0, Total=5852 [2021-05-03 15:23:56,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6347 states. [2021-05-03 15:23:56,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6347 to 4305. [2021-05-03 15:23:56,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 4304 states have (on average 2.5820167286245352) internal successors, (11113), 4304 states have internal predecessors, (11113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:56,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 11113 transitions. [2021-05-03 15:23:56,202 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 11113 transitions. Word has length 32 [2021-05-03 15:23:56,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:56,203 INFO L480 AbstractCegarLoop]: Abstraction has 4305 states and 11113 transitions. [2021-05-03 15:23:56,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:56,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 11113 transitions. [2021-05-03 15:23:56,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:23:56,208 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:56,208 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:56,425 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable218 [2021-05-03 15:23:56,426 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:56,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:56,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1058221652, now seen corresponding path program 54 times [2021-05-03 15:23:56,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:56,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529689822] [2021-05-03 15:23:56,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:56,500 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:56,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529689822] [2021-05-03 15:23:56,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982729761] [2021-05-03 15:23:56,501 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 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:56,539 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-05-03 15:23:56,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:56,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:23:56,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:56,757 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:56,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:56,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-05-03 15:23:56,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12874693] [2021-05-03 15:23:56,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-03 15:23:56,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:56,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-03 15:23:56,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2021-05-03 15:23:56,758 INFO L87 Difference]: Start difference. First operand 4305 states and 11113 transitions. Second operand has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:57,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:57,716 INFO L93 Difference]: Finished difference Result 4664 states and 11802 transitions. [2021-05-03 15:23:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-05-03 15:23:57,717 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 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 32 [2021-05-03 15:23:57,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:57,722 INFO L225 Difference]: With dead ends: 4664 [2021-05-03 15:23:57,722 INFO L226 Difference]: Without dead ends: 4660 [2021-05-03 15:23:57,723 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 913.0ms TimeCoverageRelationStatistics Valid=1088, Invalid=3334, Unknown=0, NotChecked=0, Total=4422 [2021-05-03 15:23:57,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4660 states. [2021-05-03 15:23:57,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4660 to 4305. [2021-05-03 15:23:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 4304 states have (on average 2.5810873605947955) internal successors, (11109), 4304 states have internal predecessors, (11109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:57,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 11109 transitions. [2021-05-03 15:23:57,786 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 11109 transitions. Word has length 32 [2021-05-03 15:23:57,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:57,786 INFO L480 AbstractCegarLoop]: Abstraction has 4305 states and 11109 transitions. [2021-05-03 15:23:57,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:57,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 11109 transitions. [2021-05-03 15:23:57,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:23:57,790 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:57,790 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:57,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219,55 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:57,990 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:57,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:57,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1813615886, now seen corresponding path program 55 times [2021-05-03 15:23:57,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:57,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802520632] [2021-05-03 15:23:57,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:23:58,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802520632] [2021-05-03 15:23:58,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344564223] [2021-05-03 15:23:58,051 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 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:58,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:23:58,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:58,289 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:58,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:58,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-05-03 15:23:58,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058405420] [2021-05-03 15:23:58,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-03 15:23:58,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:58,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-03 15:23:58,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2021-05-03 15:23:58,290 INFO L87 Difference]: Start difference. First operand 4305 states and 11109 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:59,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:23:59,127 INFO L93 Difference]: Finished difference Result 5836 states and 14714 transitions. [2021-05-03 15:23:59,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-05-03 15:23:59,128 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 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 32 [2021-05-03 15:23:59,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:23:59,134 INFO L225 Difference]: With dead ends: 5836 [2021-05-03 15:23:59,134 INFO L226 Difference]: Without dead ends: 5818 [2021-05-03 15:23:59,134 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 714.7ms TimeCoverageRelationStatistics Valid=721, Invalid=2249, Unknown=0, NotChecked=0, Total=2970 [2021-05-03 15:23:59,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2021-05-03 15:23:59,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 4428. [2021-05-03 15:23:59,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4428 states, 4427 states have (on average 2.5897899254574206) internal successors, (11465), 4427 states have internal predecessors, (11465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 11465 transitions. [2021-05-03 15:23:59,199 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 11465 transitions. Word has length 32 [2021-05-03 15:23:59,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:23:59,199 INFO L480 AbstractCegarLoop]: Abstraction has 4428 states and 11465 transitions. [2021-05-03 15:23:59,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:23:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 11465 transitions. [2021-05-03 15:23:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:23:59,203 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:23:59,203 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:23:59,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:59,424 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:23:59,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:23:59,425 INFO L82 PathProgramCache]: Analyzing trace with hash -673820798, now seen corresponding path program 56 times [2021-05-03 15:23:59,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:23:59,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703313244] [2021-05-03 15:23:59,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:23:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:23:59,490 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:59,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703313244] [2021-05-03 15:23:59,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581838211] [2021-05-03 15:23:59,490 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 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:23:59,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:23:59,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:23:59,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:23:59,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:23:59,734 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:23:59,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:23:59,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-05-03 15:23:59,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310779824] [2021-05-03 15:23:59,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-03 15:23:59,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:23:59,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-03 15:23:59,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-05-03 15:23:59,735 INFO L87 Difference]: Start difference. First operand 4428 states and 11465 transitions. Second operand has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:00,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:00,735 INFO L93 Difference]: Finished difference Result 5254 states and 13180 transitions. [2021-05-03 15:24:00,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-03 15:24:00,736 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:00,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:00,741 INFO L225 Difference]: With dead ends: 5254 [2021-05-03 15:24:00,741 INFO L226 Difference]: Without dead ends: 5238 [2021-05-03 15:24:00,742 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1414 ImplicationChecksByTransitivity, 946.2ms TimeCoverageRelationStatistics Valid=1130, Invalid=3562, Unknown=0, NotChecked=0, Total=4692 [2021-05-03 15:24:00,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5238 states. [2021-05-03 15:24:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5238 to 4516. [2021-05-03 15:24:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4515 states have (on average 2.5918050941306756) internal successors, (11702), 4515 states have internal predecessors, (11702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:00,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 11702 transitions. [2021-05-03 15:24:00,811 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 11702 transitions. Word has length 32 [2021-05-03 15:24:00,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:00,811 INFO L480 AbstractCegarLoop]: Abstraction has 4516 states and 11702 transitions. [2021-05-03 15:24:00,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:00,811 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 11702 transitions. [2021-05-03 15:24:00,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:00,815 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:00,815 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:01,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable221 [2021-05-03 15:24:01,016 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:01,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:01,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1175991294, now seen corresponding path program 57 times [2021-05-03 15:24:01,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:01,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130157078] [2021-05-03 15:24:01,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:01,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130157078] [2021-05-03 15:24:01,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952663367] [2021-05-03 15:24:01,090 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 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:01,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-05-03 15:24:01,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:01,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:01,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:01,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:01,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-05-03 15:24:01,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503615995] [2021-05-03 15:24:01,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:24:01,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:01,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:24:01,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:24:01,336 INFO L87 Difference]: Start difference. First operand 4516 states and 11702 transitions. Second operand has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:02,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:02,393 INFO L93 Difference]: Finished difference Result 5594 states and 13918 transitions. [2021-05-03 15:24:02,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-03 15:24:02,394 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:02,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:02,400 INFO L225 Difference]: With dead ends: 5594 [2021-05-03 15:24:02,400 INFO L226 Difference]: Without dead ends: 5566 [2021-05-03 15:24:02,401 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1574 ImplicationChecksByTransitivity, 949.1ms TimeCoverageRelationStatistics Valid=1183, Invalid=3787, Unknown=0, NotChecked=0, Total=4970 [2021-05-03 15:24:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5566 states. [2021-05-03 15:24:02,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5566 to 4347. [2021-05-03 15:24:02,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4347 states, 4346 states have (on average 2.588587206626783) internal successors, (11250), 4346 states have internal predecessors, (11250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:02,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 11250 transitions. [2021-05-03 15:24:02,454 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 11250 transitions. Word has length 32 [2021-05-03 15:24:02,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:02,454 INFO L480 AbstractCegarLoop]: Abstraction has 4347 states and 11250 transitions. [2021-05-03 15:24:02,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:02,454 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 11250 transitions. [2021-05-03 15:24:02,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:02,458 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:02,458 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:02,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:02,659 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:02,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:02,659 INFO L82 PathProgramCache]: Analyzing trace with hash 728951162, now seen corresponding path program 58 times [2021-05-03 15:24:02,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:02,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317423234] [2021-05-03 15:24:02,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:02,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317423234] [2021-05-03 15:24:02,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387838879] [2021-05-03 15:24:02,746 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 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 15:24:02,774 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:24:02,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:02,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:02,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:03,007 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:03,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:03,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-05-03 15:24:03,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347081266] [2021-05-03 15:24:03,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 15:24:03,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:03,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 15:24:03,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2021-05-03 15:24:03,009 INFO L87 Difference]: Start difference. First operand 4347 states and 11250 transitions. Second operand has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:04,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:04,148 INFO L93 Difference]: Finished difference Result 5720 states and 14080 transitions. [2021-05-03 15:24:04,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-05-03 15:24:04,149 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:04,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:04,155 INFO L225 Difference]: With dead ends: 5720 [2021-05-03 15:24:04,156 INFO L226 Difference]: Without dead ends: 5686 [2021-05-03 15:24:04,156 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 1056.6ms TimeCoverageRelationStatistics Valid=1246, Invalid=4010, Unknown=0, NotChecked=0, Total=5256 [2021-05-03 15:24:04,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5686 states. [2021-05-03 15:24:04,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5686 to 3872. [2021-05-03 15:24:04,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3872 states, 3871 states have (on average 2.579178506845776) internal successors, (9984), 3871 states have internal predecessors, (9984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:04,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 9984 transitions. [2021-05-03 15:24:04,227 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 9984 transitions. Word has length 32 [2021-05-03 15:24:04,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:04,227 INFO L480 AbstractCegarLoop]: Abstraction has 3872 states and 9984 transitions. [2021-05-03 15:24:04,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:04,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 9984 transitions. [2021-05-03 15:24:04,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:04,230 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:04,230 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:04,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable223 [2021-05-03 15:24:04,431 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:04,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1717407562, now seen corresponding path program 59 times [2021-05-03 15:24:04,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:04,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996403210] [2021-05-03 15:24:04,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:04,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996403210] [2021-05-03 15:24:04,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28478591] [2021-05-03 15:24:04,529 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 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:04,559 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-03 15:24:04,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:04,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:04,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:04,760 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:04,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:04,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-05-03 15:24:04,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762799525] [2021-05-03 15:24:04,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 15:24:04,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:04,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 15:24:04,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2021-05-03 15:24:04,761 INFO L87 Difference]: Start difference. First operand 3872 states and 9984 transitions. Second operand has 25 states, 25 states have (on average 2.28) internal successors, (57), 24 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:05,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:05,892 INFO L93 Difference]: Finished difference Result 5197 states and 12616 transitions. [2021-05-03 15:24:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-05-03 15:24:05,892 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 24 states have internal predecessors, (57), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:05,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:05,898 INFO L225 Difference]: With dead ends: 5197 [2021-05-03 15:24:05,898 INFO L226 Difference]: Without dead ends: 5197 [2021-05-03 15:24:05,898 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 990.1ms TimeCoverageRelationStatistics Valid=1262, Invalid=3708, Unknown=0, NotChecked=0, Total=4970 [2021-05-03 15:24:05,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2021-05-03 15:24:05,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 3402. [2021-05-03 15:24:05,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 3401 states have (on average 2.5633637165539547) internal successors, (8718), 3401 states have internal predecessors, (8718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:05,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 8718 transitions. [2021-05-03 15:24:05,940 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 8718 transitions. Word has length 32 [2021-05-03 15:24:05,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:05,940 INFO L480 AbstractCegarLoop]: Abstraction has 3402 states and 8718 transitions. [2021-05-03 15:24:05,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 24 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:05,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 8718 transitions. [2021-05-03 15:24:05,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:05,942 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:05,942 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:06,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable224 [2021-05-03 15:24:06,143 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:06,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:06,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1240500466, now seen corresponding path program 60 times [2021-05-03 15:24:06,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:06,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159232649] [2021-05-03 15:24:06,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:06,249 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:06,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159232649] [2021-05-03 15:24:06,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634704355] [2021-05-03 15:24:06,249 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 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:06,275 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-05-03 15:24:06,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:06,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:06,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:06,482 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:06,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:06,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-05-03 15:24:06,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122825432] [2021-05-03 15:24:06,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 15:24:06,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:06,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 15:24:06,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2021-05-03 15:24:06,483 INFO L87 Difference]: Start difference. First operand 3402 states and 8718 transitions. Second operand has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:07,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:07,642 INFO L93 Difference]: Finished difference Result 4252 states and 10318 transitions. [2021-05-03 15:24:07,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-05-03 15:24:07,642 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:07,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:07,646 INFO L225 Difference]: With dead ends: 4252 [2021-05-03 15:24:07,647 INFO L226 Difference]: Without dead ends: 4186 [2021-05-03 15:24:07,647 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1720 ImplicationChecksByTransitivity, 1032.7ms TimeCoverageRelationStatistics Valid=1147, Invalid=4109, Unknown=0, NotChecked=0, Total=5256 [2021-05-03 15:24:07,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2021-05-03 15:24:07,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3264. [2021-05-03 15:24:07,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3264 states, 3263 states have (on average 2.5485749310450507) internal successors, (8316), 3263 states have internal predecessors, (8316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 8316 transitions. [2021-05-03 15:24:07,688 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 8316 transitions. Word has length 32 [2021-05-03 15:24:07,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:07,688 INFO L480 AbstractCegarLoop]: Abstraction has 3264 states and 8316 transitions. [2021-05-03 15:24:07,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.2916666666666665) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:07,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 8316 transitions. [2021-05-03 15:24:07,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:07,690 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:07,690 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:07,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable225 [2021-05-03 15:24:07,891 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:07,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:07,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1425607606, now seen corresponding path program 61 times [2021-05-03 15:24:07,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:07,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457692838] [2021-05-03 15:24:07,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:07,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457692838] [2021-05-03 15:24:07,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325585221] [2021-05-03 15:24:07,974 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 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:07,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:07,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:08,189 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:08,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:08,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-05-03 15:24:08,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177935600] [2021-05-03 15:24:08,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 15:24:08,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:08,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 15:24:08,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2021-05-03 15:24:08,190 INFO L87 Difference]: Start difference. First operand 3264 states and 8316 transitions. Second operand has 24 states, 24 states have (on average 2.375) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:09,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:09,426 INFO L93 Difference]: Finished difference Result 4881 states and 11710 transitions. [2021-05-03 15:24:09,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-05-03 15:24:09,427 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.375) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:09,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:09,431 INFO L225 Difference]: With dead ends: 4881 [2021-05-03 15:24:09,431 INFO L226 Difference]: Without dead ends: 4881 [2021-05-03 15:24:09,432 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1700 ImplicationChecksByTransitivity, 1072.9ms TimeCoverageRelationStatistics Valid=1473, Invalid=4077, Unknown=0, NotChecked=0, Total=5550 [2021-05-03 15:24:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4881 states. [2021-05-03 15:24:09,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4881 to 2860. [2021-05-03 15:24:09,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2859 states have (on average 2.5183630640083945) internal successors, (7200), 2859 states have internal predecessors, (7200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:09,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 7200 transitions. [2021-05-03 15:24:09,467 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 7200 transitions. Word has length 32 [2021-05-03 15:24:09,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:09,467 INFO L480 AbstractCegarLoop]: Abstraction has 2860 states and 7200 transitions. [2021-05-03 15:24:09,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.375) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:09,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 7200 transitions. [2021-05-03 15:24:09,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:09,469 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:09,469 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:09,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:09,673 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:09,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:09,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1428685554, now seen corresponding path program 62 times [2021-05-03 15:24:09,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:09,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656717746] [2021-05-03 15:24:09,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:09,754 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:09,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656717746] [2021-05-03 15:24:09,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199117662] [2021-05-03 15:24:09,755 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 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 15:24:09,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:24:09,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:09,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:09,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:10,025 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:10,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:10,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-05-03 15:24:10,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371499131] [2021-05-03 15:24:10,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:24:10,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:10,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:24:10,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:24:10,027 INFO L87 Difference]: Start difference. First operand 2860 states and 7200 transitions. Second operand has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:11,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:11,058 INFO L93 Difference]: Finished difference Result 3661 states and 8825 transitions. [2021-05-03 15:24:11,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-05-03 15:24:11,059 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:11,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:11,062 INFO L225 Difference]: With dead ends: 3661 [2021-05-03 15:24:11,062 INFO L226 Difference]: Without dead ends: 3622 [2021-05-03 15:24:11,063 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1460 ImplicationChecksByTransitivity, 941.1ms TimeCoverageRelationStatistics Valid=968, Invalid=3454, Unknown=0, NotChecked=0, Total=4422 [2021-05-03 15:24:11,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2021-05-03 15:24:11,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 2809. [2021-05-03 15:24:11,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 2808 states have (on average 2.508190883190883) internal successors, (7043), 2808 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:11,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 7043 transitions. [2021-05-03 15:24:11,095 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 7043 transitions. Word has length 32 [2021-05-03 15:24:11,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:11,095 INFO L480 AbstractCegarLoop]: Abstraction has 2809 states and 7043 transitions. [2021-05-03 15:24:11,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:11,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 7043 transitions. [2021-05-03 15:24:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:11,097 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:11,097 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:11,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable227 [2021-05-03 15:24:11,301 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:11,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:11,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1690671434, now seen corresponding path program 63 times [2021-05-03 15:24:11,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:11,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472432399] [2021-05-03 15:24:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:11,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472432399] [2021-05-03 15:24:11,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986474514] [2021-05-03 15:24:11,381 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 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 15:24:11,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-05-03 15:24:11,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:11,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:11,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:11,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:11,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-05-03 15:24:11,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270339023] [2021-05-03 15:24:11,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:24:11,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:11,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:24:11,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:24:11,642 INFO L87 Difference]: Start difference. First operand 2809 states and 7043 transitions. Second operand has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:13,003 INFO L93 Difference]: Finished difference Result 4911 states and 11694 transitions. [2021-05-03 15:24:13,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-05-03 15:24:13,004 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:13,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:13,008 INFO L225 Difference]: With dead ends: 4911 [2021-05-03 15:24:13,008 INFO L226 Difference]: Without dead ends: 4911 [2021-05-03 15:24:13,009 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2155 ImplicationChecksByTransitivity, 1215.1ms TimeCoverageRelationStatistics Valid=1768, Invalid=4552, Unknown=0, NotChecked=0, Total=6320 [2021-05-03 15:24:13,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4911 states. [2021-05-03 15:24:13,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4911 to 3307. [2021-05-03 15:24:13,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 3306 states have (on average 2.481246218995765) internal successors, (8203), 3306 states have internal predecessors, (8203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 8203 transitions. [2021-05-03 15:24:13,058 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 8203 transitions. Word has length 32 [2021-05-03 15:24:13,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:13,058 INFO L480 AbstractCegarLoop]: Abstraction has 3307 states and 8203 transitions. [2021-05-03 15:24:13,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:13,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 8203 transitions. [2021-05-03 15:24:13,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:13,060 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:13,060 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:13,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:13,261 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:13,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:13,261 INFO L82 PathProgramCache]: Analyzing trace with hash -604635918, now seen corresponding path program 64 times [2021-05-03 15:24:13,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:13,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029735349] [2021-05-03 15:24:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:13,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029735349] [2021-05-03 15:24:13,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751196581] [2021-05-03 15:24:13,334 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 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:13,353 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:24:13,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:13,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:13,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:13,558 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:13,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:13,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-05-03 15:24:13,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137015787] [2021-05-03 15:24:13,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-03 15:24:13,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:13,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-03 15:24:13,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-05-03 15:24:13,559 INFO L87 Difference]: Start difference. First operand 3307 states and 8203 transitions. Second operand has 22 states, 22 states have (on average 2.5) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:14,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:14,486 INFO L93 Difference]: Finished difference Result 3840 states and 9263 transitions. [2021-05-03 15:24:14,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-05-03 15:24:14,486 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:14,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:14,490 INFO L225 Difference]: With dead ends: 3840 [2021-05-03 15:24:14,490 INFO L226 Difference]: Without dead ends: 3822 [2021-05-03 15:24:14,491 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 820.3ms TimeCoverageRelationStatistics Valid=879, Invalid=3027, Unknown=0, NotChecked=0, Total=3906 [2021-05-03 15:24:14,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2021-05-03 15:24:14,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 3381. [2021-05-03 15:24:14,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 2.486094674556213) internal successors, (8403), 3380 states have internal predecessors, (8403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:14,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 8403 transitions. [2021-05-03 15:24:14,537 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 8403 transitions. Word has length 32 [2021-05-03 15:24:14,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:14,537 INFO L480 AbstractCegarLoop]: Abstraction has 3381 states and 8403 transitions. [2021-05-03 15:24:14,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:14,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 8403 transitions. [2021-05-03 15:24:14,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:14,540 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:14,540 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:14,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:14,750 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:14,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:14,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1474920010, now seen corresponding path program 65 times [2021-05-03 15:24:14,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:14,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517355601] [2021-05-03 15:24:14,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:14,823 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:14,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517355601] [2021-05-03 15:24:14,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564796773] [2021-05-03 15:24:14,823 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 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 15:24:14,860 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-03 15:24:14,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:14,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:14,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:15,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:15,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-05-03 15:24:15,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149549134] [2021-05-03 15:24:15,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-03 15:24:15,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:15,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-03 15:24:15,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2021-05-03 15:24:15,107 INFO L87 Difference]: Start difference. First operand 3381 states and 8403 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:16,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:16,507 INFO L93 Difference]: Finished difference Result 6180 states and 15068 transitions. [2021-05-03 15:24:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-05-03 15:24:16,508 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-05-03 15:24:16,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:16,514 INFO L225 Difference]: With dead ends: 6180 [2021-05-03 15:24:16,514 INFO L226 Difference]: Without dead ends: 6180 [2021-05-03 15:24:16,515 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2540 ImplicationChecksByTransitivity, 1287.8ms TimeCoverageRelationStatistics Valid=2010, Invalid=4962, Unknown=0, NotChecked=0, Total=6972 [2021-05-03 15:24:16,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6180 states. [2021-05-03 15:24:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6180 to 5144. [2021-05-03 15:24:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5144 states, 5143 states have (on average 2.52109663620455) internal successors, (12966), 5143 states have internal predecessors, (12966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:16,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5144 states to 5144 states and 12966 transitions. [2021-05-03 15:24:16,581 INFO L78 Accepts]: Start accepts. Automaton has 5144 states and 12966 transitions. Word has length 32 [2021-05-03 15:24:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:16,581 INFO L480 AbstractCegarLoop]: Abstraction has 5144 states and 12966 transitions. [2021-05-03 15:24:16,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5144 states and 12966 transitions. [2021-05-03 15:24:16,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:16,585 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:16,585 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:16,785 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable230 [2021-05-03 15:24:16,785 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:16,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:16,785 INFO L82 PathProgramCache]: Analyzing trace with hash 874026652, now seen corresponding path program 66 times [2021-05-03 15:24:16,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:16,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478593962] [2021-05-03 15:24:16,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:16,843 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:16,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478593962] [2021-05-03 15:24:16,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689089511] [2021-05-03 15:24:16,843 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 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:16,864 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-05-03 15:24:16,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:16,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:16,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:17,084 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:17,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:17,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 20 [2021-05-03 15:24:17,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365716290] [2021-05-03 15:24:17,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-03 15:24:17,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:17,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-03 15:24:17,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-05-03 15:24:17,085 INFO L87 Difference]: Start difference. First operand 5144 states and 12966 transitions. Second operand has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:18,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:18,007 INFO L93 Difference]: Finished difference Result 6009 states and 14677 transitions. [2021-05-03 15:24:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-03 15:24:18,007 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:18,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:18,013 INFO L225 Difference]: With dead ends: 6009 [2021-05-03 15:24:18,013 INFO L226 Difference]: Without dead ends: 6005 [2021-05-03 15:24:18,014 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 830.0ms TimeCoverageRelationStatistics Valid=1087, Invalid=2819, Unknown=0, NotChecked=0, Total=3906 [2021-05-03 15:24:18,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6005 states. [2021-05-03 15:24:18,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6005 to 5062. [2021-05-03 15:24:18,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5062 states, 5061 states have (on average 2.517091483896463) internal successors, (12739), 5061 states have internal predecessors, (12739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:18,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5062 states to 5062 states and 12739 transitions. [2021-05-03 15:24:18,091 INFO L78 Accepts]: Start accepts. Automaton has 5062 states and 12739 transitions. Word has length 32 [2021-05-03 15:24:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:18,091 INFO L480 AbstractCegarLoop]: Abstraction has 5062 states and 12739 transitions. [2021-05-03 15:24:18,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 20 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:18,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5062 states and 12739 transitions. [2021-05-03 15:24:18,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:18,094 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:18,094 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:18,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231,67 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:18,295 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:18,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:18,296 INFO L82 PathProgramCache]: Analyzing trace with hash 367680386, now seen corresponding path program 67 times [2021-05-03 15:24:18,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:18,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147392255] [2021-05-03 15:24:18,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:18,362 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 17 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:18,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147392255] [2021-05-03 15:24:18,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046741974] [2021-05-03 15:24:18,362 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 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:18,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:18,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:18,595 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:18,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:18,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-05-03 15:24:18,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14693695] [2021-05-03 15:24:18,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-03 15:24:18,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:18,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-03 15:24:18,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2021-05-03 15:24:18,596 INFO L87 Difference]: Start difference. First operand 5062 states and 12739 transitions. Second operand has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:19,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:19,494 INFO L93 Difference]: Finished difference Result 6244 states and 15277 transitions. [2021-05-03 15:24:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-05-03 15:24:19,495 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:19,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:19,501 INFO L225 Difference]: With dead ends: 6244 [2021-05-03 15:24:19,501 INFO L226 Difference]: Without dead ends: 6232 [2021-05-03 15:24:19,502 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1197 ImplicationChecksByTransitivity, 825.3ms TimeCoverageRelationStatistics Valid=1011, Invalid=2895, Unknown=0, NotChecked=0, Total=3906 [2021-05-03 15:24:19,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6232 states. [2021-05-03 15:24:19,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6232 to 5108. [2021-05-03 15:24:19,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5108 states, 5107 states have (on average 2.522811826904249) internal successors, (12884), 5107 states have internal predecessors, (12884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:19,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 12884 transitions. [2021-05-03 15:24:19,571 INFO L78 Accepts]: Start accepts. Automaton has 5108 states and 12884 transitions. Word has length 32 [2021-05-03 15:24:19,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:19,571 INFO L480 AbstractCegarLoop]: Abstraction has 5108 states and 12884 transitions. [2021-05-03 15:24:19,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 21 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:19,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5108 states and 12884 transitions. [2021-05-03 15:24:19,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:19,574 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:19,574 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:19,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:19,775 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:19,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:19,775 INFO L82 PathProgramCache]: Analyzing trace with hash 140459006, now seen corresponding path program 68 times [2021-05-03 15:24:19,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:19,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745586170] [2021-05-03 15:24:19,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:19,869 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:19,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745586170] [2021-05-03 15:24:19,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90974029] [2021-05-03 15:24:19,869 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 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:19,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:24:19,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:19,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:19,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:20,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:20,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2021-05-03 15:24:20,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16840058] [2021-05-03 15:24:20,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:24:20,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:20,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:24:20,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:24:20,087 INFO L87 Difference]: Start difference. First operand 5108 states and 12884 transitions. Second operand has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:21,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:21,015 INFO L93 Difference]: Finished difference Result 6722 states and 16413 transitions. [2021-05-03 15:24:21,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-03 15:24:21,016 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:21,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:21,023 INFO L225 Difference]: With dead ends: 6722 [2021-05-03 15:24:21,023 INFO L226 Difference]: Without dead ends: 6702 [2021-05-03 15:24:21,024 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 854.5ms TimeCoverageRelationStatistics Valid=1025, Invalid=3135, Unknown=0, NotChecked=0, Total=4160 [2021-05-03 15:24:21,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2021-05-03 15:24:21,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5738. [2021-05-03 15:24:21,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5737 states have (on average 2.5281506013595956) internal successors, (14504), 5737 states have internal predecessors, (14504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 14504 transitions. [2021-05-03 15:24:21,120 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 14504 transitions. Word has length 32 [2021-05-03 15:24:21,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:21,120 INFO L480 AbstractCegarLoop]: Abstraction has 5738 states and 14504 transitions. [2021-05-03 15:24:21,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:21,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 14504 transitions. [2021-05-03 15:24:21,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:21,124 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:21,124 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:21,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable233 [2021-05-03 15:24:21,324 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:21,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:21,325 INFO L82 PathProgramCache]: Analyzing trace with hash 824044922, now seen corresponding path program 69 times [2021-05-03 15:24:21,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:21,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108734088] [2021-05-03 15:24:21,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:21,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108734088] [2021-05-03 15:24:21,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512447703] [2021-05-03 15:24:21,415 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 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:21,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-05-03 15:24:21,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:21,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:21,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:21,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:21,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2021-05-03 15:24:21,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174553921] [2021-05-03 15:24:21,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 15:24:21,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:21,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 15:24:21,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-05-03 15:24:21,722 INFO L87 Difference]: Start difference. First operand 5738 states and 14504 transitions. Second operand has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:22,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:22,841 INFO L93 Difference]: Finished difference Result 7634 states and 18636 transitions. [2021-05-03 15:24:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-05-03 15:24:22,842 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:22,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:22,850 INFO L225 Difference]: With dead ends: 7634 [2021-05-03 15:24:22,850 INFO L226 Difference]: Without dead ends: 7606 [2021-05-03 15:24:22,851 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1454 ImplicationChecksByTransitivity, 1058.4ms TimeCoverageRelationStatistics Valid=1128, Invalid=3564, Unknown=0, NotChecked=0, Total=4692 [2021-05-03 15:24:22,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7606 states. [2021-05-03 15:24:22,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7606 to 6549. [2021-05-03 15:24:22,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6549 states, 6548 states have (on average 2.5284056200366525) internal successors, (16556), 6548 states have internal predecessors, (16556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:22,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 16556 transitions. [2021-05-03 15:24:22,943 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 16556 transitions. Word has length 32 [2021-05-03 15:24:22,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:22,943 INFO L480 AbstractCegarLoop]: Abstraction has 6549 states and 16556 transitions. [2021-05-03 15:24:22,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 23 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:22,944 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 16556 transitions. [2021-05-03 15:24:22,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-03 15:24:22,948 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:22,948 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:23,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable234 [2021-05-03 15:24:23,148 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:23,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:23,149 INFO L82 PathProgramCache]: Analyzing trace with hash 620113910, now seen corresponding path program 70 times [2021-05-03 15:24:23,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:23,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445635445] [2021-05-03 15:24:23,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:23,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445635445] [2021-05-03 15:24:23,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094585171] [2021-05-03 15:24:23,244 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 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:23,263 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:24:23,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:23,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 15:24:23,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:23,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:23,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-05-03 15:24:23,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215058982] [2021-05-03 15:24:23,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 15:24:23,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:23,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 15:24:23,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-05-03 15:24:23,507 INFO L87 Difference]: Start difference. First operand 6549 states and 16556 transitions. Second operand has 25 states, 25 states have (on average 2.16) internal successors, (54), 24 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:24,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:24,610 INFO L93 Difference]: Finished difference Result 7611 states and 18726 transitions. [2021-05-03 15:24:24,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-05-03 15:24:24,610 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 24 states have internal predecessors, (54), 0 states have call successors, (0), 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 32 [2021-05-03 15:24:24,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:24,619 INFO L225 Difference]: With dead ends: 7611 [2021-05-03 15:24:24,619 INFO L226 Difference]: Without dead ends: 7575 [2021-05-03 15:24:24,619 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1782 ImplicationChecksByTransitivity, 1035.9ms TimeCoverageRelationStatistics Valid=1318, Invalid=4232, Unknown=0, NotChecked=0, Total=5550 [2021-05-03 15:24:24,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7575 states. [2021-05-03 15:24:24,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7575 to 6635. [2021-05-03 15:24:24,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6635 states, 6634 states have (on average 2.537232438950859) internal successors, (16832), 6634 states have internal predecessors, (16832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:24,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6635 states to 6635 states and 16832 transitions. [2021-05-03 15:24:24,717 INFO L78 Accepts]: Start accepts. Automaton has 6635 states and 16832 transitions. Word has length 32 [2021-05-03 15:24:24,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:24,717 INFO L480 AbstractCegarLoop]: Abstraction has 6635 states and 16832 transitions. [2021-05-03 15:24:24,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.16) internal successors, (54), 24 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:24,717 INFO L276 IsEmpty]: Start isEmpty. Operand 6635 states and 16832 transitions. [2021-05-03 15:24:24,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-03 15:24:24,722 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:24,722 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:24,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable235 [2021-05-03 15:24:24,923 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:24,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:24,923 INFO L82 PathProgramCache]: Analyzing trace with hash -617394444, now seen corresponding path program 71 times [2021-05-03 15:24:24,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:24,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245677938] [2021-05-03 15:24:24,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:24,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245677938] [2021-05-03 15:24:24,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104440582] [2021-05-03 15:24:24,967 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 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:24,995 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-03 15:24:24,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:24,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 39 conjunts are in the unsatisfiable core [2021-05-03 15:24:24,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:25,209 INFO L354 Elim1Store]: treesize reduction 72, result has 40.5 percent of original size [2021-05-03 15:24:25,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 130 treesize of output 111 [2021-05-03 15:24:25,460 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:24:25,488 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:25,592 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:24:25,592 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:130, output treesize:171 [2021-05-03 15:24:25,796 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-05-03 15:24:26,142 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-05-03 15:24:26,576 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 38 [2021-05-03 15:24:26,713 INFO L354 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2021-05-03 15:24:26,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 103 treesize of output 40 [2021-05-03 15:24:26,715 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:26,802 INFO L628 ElimStorePlain]: treesize reduction 158, result has 59.5 percent of original size [2021-05-03 15:24:26,854 INFO L354 Elim1Store]: treesize reduction 40, result has 50.6 percent of original size [2021-05-03 15:24:26,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 75 [2021-05-03 15:24:26,858 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:26,868 INFO L628 ElimStorePlain]: treesize reduction 169, result has 1.7 percent of original size [2021-05-03 15:24:26,868 INFO L518 ElimStorePlain]: Eliminatee v_prenex_46 vanished before elimination [2021-05-03 15:24:26,868 INFO L518 ElimStorePlain]: Eliminatee v_prenex_44 vanished before elimination [2021-05-03 15:24:26,868 INFO L518 ElimStorePlain]: Eliminatee v_prenex_48 vanished before elimination [2021-05-03 15:24:26,869 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:24:26,869 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:486, output treesize:3 [2021-05-03 15:24:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:26,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:26,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-05-03 15:24:26,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586539529] [2021-05-03 15:24:26,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 15:24:26,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:26,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 15:24:26,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:26,876 INFO L87 Difference]: Start difference. First operand 6635 states and 16832 transitions. Second operand has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:27,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:27,189 INFO L93 Difference]: Finished difference Result 7845 states and 19757 transitions. [2021-05-03 15:24:27,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 15:24:27,190 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 0 states have call successors, (0), 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 34 [2021-05-03 15:24:27,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:27,199 INFO L225 Difference]: With dead ends: 7845 [2021-05-03 15:24:27,200 INFO L226 Difference]: Without dead ends: 7838 [2021-05-03 15:24:27,200 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 823.9ms TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-05-03 15:24:27,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7838 states. [2021-05-03 15:24:27,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7838 to 7360. [2021-05-03 15:24:27,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 7359 states have (on average 2.545726321511075) internal successors, (18734), 7359 states have internal predecessors, (18734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 18734 transitions. [2021-05-03 15:24:27,308 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 18734 transitions. Word has length 34 [2021-05-03 15:24:27,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:27,309 INFO L480 AbstractCegarLoop]: Abstraction has 7360 states and 18734 transitions. [2021-05-03 15:24:27,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 17 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:27,309 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 18734 transitions. [2021-05-03 15:24:27,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-03 15:24:27,315 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:27,315 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:27,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable236 [2021-05-03 15:24:27,527 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:27,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:27,527 INFO L82 PathProgramCache]: Analyzing trace with hash -100122124, now seen corresponding path program 72 times [2021-05-03 15:24:27,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:27,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181114943] [2021-05-03 15:24:27,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:27,570 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:24:27,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181114943] [2021-05-03 15:24:27,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658069930] [2021-05-03 15:24:27,570 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 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:27,599 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-03 15:24:27,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:27,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 41 conjunts are in the unsatisfiable core [2021-05-03 15:24:27,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:27,848 INFO L446 ElimStorePlain]: Different costs {10=[f], 36=[f_inv]} [2021-05-03 15:24:27,899 INFO L354 Elim1Store]: treesize reduction 32, result has 60.5 percent of original size [2021-05-03 15:24:27,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 120 [2021-05-03 15:24:28,293 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:24:28,317 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:28,352 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:28,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 187 treesize of output 147 [2021-05-03 15:24:28,423 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:28,424 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:28,425 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:24:28,425 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:158, output treesize:3 [2021-05-03 15:24:28,434 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:28,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:28,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-05-03 15:24:28,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924096627] [2021-05-03 15:24:28,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 15:24:28,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:28,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 15:24:28,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:28,435 INFO L87 Difference]: Start difference. First operand 7360 states and 18734 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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) [2021-05-03 15:24:28,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:28,541 INFO L93 Difference]: Finished difference Result 8008 states and 20271 transitions. [2021-05-03 15:24:28,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 15:24:28,541 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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 34 [2021-05-03 15:24:28,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:28,551 INFO L225 Difference]: With dead ends: 8008 [2021-05-03 15:24:28,551 INFO L226 Difference]: Without dead ends: 7999 [2021-05-03 15:24:28,551 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 220.2ms TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7999 states. [2021-05-03 15:24:28,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7999 to 7776. [2021-05-03 15:24:28,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7776 states, 7775 states have (on average 2.5569131832797427) internal successors, (19880), 7775 states have internal predecessors, (19880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:28,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7776 states to 7776 states and 19880 transitions. [2021-05-03 15:24:28,643 INFO L78 Accepts]: Start accepts. Automaton has 7776 states and 19880 transitions. Word has length 34 [2021-05-03 15:24:28,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:28,643 INFO L480 AbstractCegarLoop]: Abstraction has 7776 states and 19880 transitions. [2021-05-03 15:24:28,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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) [2021-05-03 15:24:28,644 INFO L276 IsEmpty]: Start isEmpty. Operand 7776 states and 19880 transitions. [2021-05-03 15:24:28,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-03 15:24:28,650 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:28,650 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:28,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable448 [2021-05-03 15:24:28,871 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:28,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:28,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1652349196, now seen corresponding path program 73 times [2021-05-03 15:24:28,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:28,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906538158] [2021-05-03 15:24:28,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:28,907 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:24:28,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906538158] [2021-05-03 15:24:28,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556470196] [2021-05-03 15:24:28,907 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 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:28,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-03 15:24:28,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:29,128 INFO L354 Elim1Store]: treesize reduction 154, result has 36.1 percent of original size [2021-05-03 15:24:29,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 119 treesize of output 127 [2021-05-03 15:24:29,144 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:29,173 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:29,175 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:24:29,175 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:124 [2021-05-03 15:24:29,228 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-05-03 15:24:29,396 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 31 [2021-05-03 15:24:29,414 INFO L446 ElimStorePlain]: Different costs {3=[f], 6=[v_prenex_50], 10=[v_prenex_51]} [2021-05-03 15:24:29,427 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:29,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-05-03 15:24:29,429 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:29,434 INFO L628 ElimStorePlain]: treesize reduction 97, result has 3.0 percent of original size [2021-05-03 15:24:29,434 INFO L518 ElimStorePlain]: Eliminatee v_prenex_50 vanished before elimination [2021-05-03 15:24:29,434 INFO L518 ElimStorePlain]: Eliminatee v_prenex_51 vanished before elimination [2021-05-03 15:24:29,435 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:24:29,435 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:116, output treesize:3 [2021-05-03 15:24:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:29,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:29,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-05-03 15:24:29,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949961322] [2021-05-03 15:24:29,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 15:24:29,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:29,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 15:24:29,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:29,445 INFO L87 Difference]: Start difference. First operand 7776 states and 19880 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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) [2021-05-03 15:24:29,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:29,613 INFO L93 Difference]: Finished difference Result 8649 states and 21915 transitions. [2021-05-03 15:24:29,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 15:24:29,613 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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 34 [2021-05-03 15:24:29,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:29,624 INFO L225 Difference]: With dead ends: 8649 [2021-05-03 15:24:29,624 INFO L226 Difference]: Without dead ends: 8624 [2021-05-03 15:24:29,624 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 305.9ms TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:29,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8624 states. [2021-05-03 15:24:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8624 to 8091. [2021-05-03 15:24:29,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8091 states, 8090 states have (on average 2.5673671199011125) internal successors, (20770), 8090 states have internal predecessors, (20770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:29,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8091 states to 8091 states and 20770 transitions. [2021-05-03 15:24:29,735 INFO L78 Accepts]: Start accepts. Automaton has 8091 states and 20770 transitions. Word has length 34 [2021-05-03 15:24:29,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:29,735 INFO L480 AbstractCegarLoop]: Abstraction has 8091 states and 20770 transitions. [2021-05-03 15:24:29,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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) [2021-05-03 15:24:29,736 INFO L276 IsEmpty]: Start isEmpty. Operand 8091 states and 20770 transitions. [2021-05-03 15:24:29,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-03 15:24:29,741 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:29,741 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:29,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:29,942 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:29,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:29,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1306053620, now seen corresponding path program 74 times [2021-05-03 15:24:29,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:29,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714076390] [2021-05-03 15:24:29,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:29,978 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:24:29,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714076390] [2021-05-03 15:24:29,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329294548] [2021-05-03 15:24:29,978 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 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:30,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:24:30,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:30,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-03 15:24:30,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:30,187 INFO L354 Elim1Store]: treesize reduction 79, result has 47.7 percent of original size [2021-05-03 15:24:30,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 117 treesize of output 110 [2021-05-03 15:24:30,190 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:30,213 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:30,214 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:24:30,214 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:132 [2021-05-03 15:24:30,358 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-05-03 15:24:30,579 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 35 [2021-05-03 15:24:30,684 INFO L446 ElimStorePlain]: Different costs {6=[f], 10=[v_prenex_54, v_prenex_55]} [2021-05-03 15:24:30,712 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:30,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-05-03 15:24:30,714 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:30,720 INFO L628 ElimStorePlain]: treesize reduction 153, result has 1.9 percent of original size [2021-05-03 15:24:30,720 INFO L518 ElimStorePlain]: Eliminatee v_prenex_54 vanished before elimination [2021-05-03 15:24:30,720 INFO L518 ElimStorePlain]: Eliminatee v_prenex_55 vanished before elimination [2021-05-03 15:24:30,720 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:24:30,721 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:176, output treesize:3 [2021-05-03 15:24:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:30,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:30,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-05-03 15:24:30,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338989770] [2021-05-03 15:24:30,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 15:24:30,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:30,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 15:24:30,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:30,731 INFO L87 Difference]: Start difference. First operand 8091 states and 20770 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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) [2021-05-03 15:24:31,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:31,008 INFO L93 Difference]: Finished difference Result 9127 states and 23212 transitions. [2021-05-03 15:24:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 15:24:31,009 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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 34 [2021-05-03 15:24:31,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:31,019 INFO L225 Difference]: With dead ends: 9127 [2021-05-03 15:24:31,020 INFO L226 Difference]: Without dead ends: 9098 [2021-05-03 15:24:31,020 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 389.5ms TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:31,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9098 states. [2021-05-03 15:24:31,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9098 to 8475. [2021-05-03 15:24:31,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8475 states, 8474 states have (on average 2.577059240028322) internal successors, (21838), 8474 states have internal predecessors, (21838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:31,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8475 states to 8475 states and 21838 transitions. [2021-05-03 15:24:31,136 INFO L78 Accepts]: Start accepts. Automaton has 8475 states and 21838 transitions. Word has length 34 [2021-05-03 15:24:31,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:31,136 INFO L480 AbstractCegarLoop]: Abstraction has 8475 states and 21838 transitions. [2021-05-03 15:24:31,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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) [2021-05-03 15:24:31,136 INFO L276 IsEmpty]: Start isEmpty. Operand 8475 states and 21838 transitions. [2021-05-03 15:24:31,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-03 15:24:31,142 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:31,142 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:31,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable612 [2021-05-03 15:24:31,342 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:31,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:31,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1062809844, now seen corresponding path program 75 times [2021-05-03 15:24:31,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:31,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640657418] [2021-05-03 15:24:31,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:24:31,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640657418] [2021-05-03 15:24:31,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979371093] [2021-05-03 15:24:31,398 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 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:31,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-05-03 15:24:31,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:31,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 37 conjunts are in the unsatisfiable core [2021-05-03 15:24:31,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:31,635 INFO L446 ElimStorePlain]: Different costs {15=[f_inv], 28=[f]} [2021-05-03 15:24:31,685 INFO L354 Elim1Store]: treesize reduction 74, result has 43.5 percent of original size [2021-05-03 15:24:31,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 158 treesize of output 123 [2021-05-03 15:24:31,821 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:24:31,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:31,880 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:31,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 139 treesize of output 144 [2021-05-03 15:24:31,899 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:31,900 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:31,900 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:24:31,900 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:158, output treesize:3 [2021-05-03 15:24:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:31,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:31,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-05-03 15:24:31,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080413839] [2021-05-03 15:24:31,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 15:24:31,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:31,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 15:24:31,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:31,911 INFO L87 Difference]: Start difference. First operand 8475 states and 21838 transitions. Second operand has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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) [2021-05-03 15:24:32,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:32,092 INFO L93 Difference]: Finished difference Result 9518 states and 24331 transitions. [2021-05-03 15:24:32,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 15:24:32,093 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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 34 [2021-05-03 15:24:32,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:32,104 INFO L225 Difference]: With dead ends: 9518 [2021-05-03 15:24:32,104 INFO L226 Difference]: Without dead ends: 9492 [2021-05-03 15:24:32,104 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 184.4ms TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:32,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9492 states. [2021-05-03 15:24:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9492 to 8919. [2021-05-03 15:24:32,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8919 states, 8918 states have (on average 2.588024220677282) internal successors, (23080), 8918 states have internal predecessors, (23080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:32,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8919 states to 8919 states and 23080 transitions. [2021-05-03 15:24:32,279 INFO L78 Accepts]: Start accepts. Automaton has 8919 states and 23080 transitions. Word has length 34 [2021-05-03 15:24:32,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:32,279 INFO L480 AbstractCegarLoop]: Abstraction has 8919 states and 23080 transitions. [2021-05-03 15:24:32,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 17 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) [2021-05-03 15:24:32,279 INFO L276 IsEmpty]: Start isEmpty. Operand 8919 states and 23080 transitions. [2021-05-03 15:24:32,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-05-03 15:24:32,285 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:32,285 INFO L551 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:32,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable635,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:32,485 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:32,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:32,486 INFO L82 PathProgramCache]: Analyzing trace with hash -766224908, now seen corresponding path program 76 times [2021-05-03 15:24:32,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:32,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689395995] [2021-05-03 15:24:32,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:32,531 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:24:32,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689395995] [2021-05-03 15:24:32,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564858172] [2021-05-03 15:24:32,532 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 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:32,568 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:24:32,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:32,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-03 15:24:32,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:32,687 INFO L354 Elim1Store]: treesize reduction 32, result has 60.5 percent of original size [2021-05-03 15:24:32,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 89 treesize of output 89 [2021-05-03 15:24:32,690 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:32,713 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:32,714 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:24:32,715 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:89, output treesize:162 [2021-05-03 15:24:32,837 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-05-03 15:24:33,251 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 38 [2021-05-03 15:24:33,665 INFO L354 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2021-05-03 15:24:33,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 98 treesize of output 43 [2021-05-03 15:24:33,666 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:33,744 INFO L628 ElimStorePlain]: treesize reduction 171, result has 56.8 percent of original size [2021-05-03 15:24:33,773 INFO L354 Elim1Store]: treesize reduction 66, result has 18.5 percent of original size [2021-05-03 15:24:33,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 48 treesize of output 40 [2021-05-03 15:24:33,775 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:33,803 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:33,825 INFO L354 Elim1Store]: treesize reduction 71, result has 12.3 percent of original size [2021-05-03 15:24:33,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 34 [2021-05-03 15:24:33,827 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:33,896 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:24:33,952 INFO L354 Elim1Store]: treesize reduction 40, result has 50.6 percent of original size [2021-05-03 15:24:33,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 75 [2021-05-03 15:24:33,955 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 15:24:33,963 INFO L628 ElimStorePlain]: treesize reduction 78, result has 3.7 percent of original size [2021-05-03 15:24:33,964 INFO L518 ElimStorePlain]: Eliminatee v_prenex_66 vanished before elimination [2021-05-03 15:24:33,964 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:24:33,964 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 10 variables, input treesize:486, output treesize:3 [2021-05-03 15:24:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:24:33,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:33,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 17 [2021-05-03 15:24:33,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894291754] [2021-05-03 15:24:33,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-03 15:24:33,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:33,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-03 15:24:33,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:33,976 INFO L87 Difference]: Start difference. First operand 8919 states and 23080 transitions. Second operand has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:34,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:34,326 INFO L93 Difference]: Finished difference Result 9867 states and 25209 transitions. [2021-05-03 15:24:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 15:24:34,326 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 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 34 [2021-05-03 15:24:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:34,338 INFO L225 Difference]: With dead ends: 9867 [2021-05-03 15:24:34,338 INFO L226 Difference]: Without dead ends: 9860 [2021-05-03 15:24:34,338 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 617.2ms TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-05-03 15:24:34,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9860 states. [2021-05-03 15:24:34,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9860 to 9257. [2021-05-03 15:24:34,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9257 states, 9256 states have (on average 2.5956136560069143) internal successors, (24025), 9256 states have internal predecessors, (24025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:34,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9257 states to 9257 states and 24025 transitions. [2021-05-03 15:24:34,507 INFO L78 Accepts]: Start accepts. Automaton has 9257 states and 24025 transitions. Word has length 34 [2021-05-03 15:24:34,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:34,508 INFO L480 AbstractCegarLoop]: Abstraction has 9257 states and 24025 transitions. [2021-05-03 15:24:34,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:34,508 INFO L276 IsEmpty]: Start isEmpty. Operand 9257 states and 24025 transitions. [2021-05-03 15:24:34,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:34,515 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:34,515 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:34,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable696 [2021-05-03 15:24:34,716 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:34,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:34,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1975981686, now seen corresponding path program 77 times [2021-05-03 15:24:34,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:34,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951475984] [2021-05-03 15:24:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:34,849 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:34,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951475984] [2021-05-03 15:24:34,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277390339] [2021-05-03 15:24:34,849 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 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:34,872 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-05-03 15:24:34,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:34,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:34,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:35,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:35,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 29 [2021-05-03 15:24:35,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599705846] [2021-05-03 15:24:35,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-03 15:24:35,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:35,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-03 15:24:35,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2021-05-03 15:24:35,135 INFO L87 Difference]: Start difference. First operand 9257 states and 24025 transitions. Second operand has 30 states, 30 states have (on average 2.2) internal successors, (66), 29 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:36,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:36,744 INFO L93 Difference]: Finished difference Result 10763 states and 27124 transitions. [2021-05-03 15:24:36,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-05-03 15:24:36,745 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 29 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 36 [2021-05-03 15:24:36,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:36,758 INFO L225 Difference]: With dead ends: 10763 [2021-05-03 15:24:36,758 INFO L226 Difference]: Without dead ends: 10763 [2021-05-03 15:24:36,759 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2236 ImplicationChecksByTransitivity, 1391.1ms TimeCoverageRelationStatistics Valid=2085, Invalid=5925, Unknown=0, NotChecked=0, Total=8010 [2021-05-03 15:24:36,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10763 states. [2021-05-03 15:24:36,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 8556. [2021-05-03 15:24:36,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8556 states, 8555 states have (on average 2.586791350087668) internal successors, (22130), 8555 states have internal predecessors, (22130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8556 states to 8556 states and 22130 transitions. [2021-05-03 15:24:36,920 INFO L78 Accepts]: Start accepts. Automaton has 8556 states and 22130 transitions. Word has length 36 [2021-05-03 15:24:36,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:36,920 INFO L480 AbstractCegarLoop]: Abstraction has 8556 states and 22130 transitions. [2021-05-03 15:24:36,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 29 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:36,920 INFO L276 IsEmpty]: Start isEmpty. Operand 8556 states and 22130 transitions. [2021-05-03 15:24:36,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:36,927 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:36,927 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:37,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable736 [2021-05-03 15:24:37,129 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:37,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:37,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1533628238, now seen corresponding path program 78 times [2021-05-03 15:24:37,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:37,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632994831] [2021-05-03 15:24:37,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:37,266 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:37,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632994831] [2021-05-03 15:24:37,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291396559] [2021-05-03 15:24:37,266 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 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:37,297 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-03 15:24:37,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:37,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:37,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:37,645 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:37,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:37,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-05-03 15:24:37,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885543983] [2021-05-03 15:24:37,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-03 15:24:37,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:37,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-03 15:24:37,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2021-05-03 15:24:37,646 INFO L87 Difference]: Start difference. First operand 8556 states and 22130 transitions. Second operand has 29 states, 29 states have (on average 2.206896551724138) internal successors, (64), 28 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:40,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:40,094 INFO L93 Difference]: Finished difference Result 12764 states and 31601 transitions. [2021-05-03 15:24:40,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-05-03 15:24:40,095 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.206896551724138) internal successors, (64), 28 states have internal predecessors, (64), 0 states have call successors, (0), 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 36 [2021-05-03 15:24:40,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:40,110 INFO L225 Difference]: With dead ends: 12764 [2021-05-03 15:24:40,110 INFO L226 Difference]: Without dead ends: 12621 [2021-05-03 15:24:40,111 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4553 ImplicationChecksByTransitivity, 2382.0ms TimeCoverageRelationStatistics Valid=2979, Invalid=10827, Unknown=0, NotChecked=0, Total=13806 [2021-05-03 15:24:40,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12621 states. [2021-05-03 15:24:40,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12621 to 8919. [2021-05-03 15:24:40,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8919 states, 8918 states have (on average 2.585557299843014) internal successors, (23058), 8918 states have internal predecessors, (23058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:40,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8919 states to 8919 states and 23058 transitions. [2021-05-03 15:24:40,262 INFO L78 Accepts]: Start accepts. Automaton has 8919 states and 23058 transitions. Word has length 36 [2021-05-03 15:24:40,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:40,262 INFO L480 AbstractCegarLoop]: Abstraction has 8919 states and 23058 transitions. [2021-05-03 15:24:40,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.206896551724138) internal successors, (64), 28 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:40,262 INFO L276 IsEmpty]: Start isEmpty. Operand 8919 states and 23058 transitions. [2021-05-03 15:24:40,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:40,269 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:40,269 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:40,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable737,79 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:40,470 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:40,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:40,470 INFO L82 PathProgramCache]: Analyzing trace with hash 800183698, now seen corresponding path program 79 times [2021-05-03 15:24:40,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:40,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451936168] [2021-05-03 15:24:40,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:40,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451936168] [2021-05-03 15:24:40,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950908553] [2021-05-03 15:24:40,542 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 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:40,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:40,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:40,824 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:40,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:40,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-05-03 15:24:40,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195028764] [2021-05-03 15:24:40,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 15:24:40,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:40,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 15:24:40,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2021-05-03 15:24:40,825 INFO L87 Difference]: Start difference. First operand 8919 states and 23058 transitions. Second operand has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:42,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:42,814 INFO L93 Difference]: Finished difference Result 16283 states and 41247 transitions. [2021-05-03 15:24:42,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-05-03 15:24:42,815 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 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 36 [2021-05-03 15:24:42,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:42,834 INFO L225 Difference]: With dead ends: 16283 [2021-05-03 15:24:42,834 INFO L226 Difference]: Without dead ends: 16267 [2021-05-03 15:24:42,834 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3729 ImplicationChecksByTransitivity, 1722.8ms TimeCoverageRelationStatistics Valid=2811, Invalid=7695, Unknown=0, NotChecked=0, Total=10506 [2021-05-03 15:24:42,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16267 states. [2021-05-03 15:24:42,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16267 to 11626. [2021-05-03 15:24:43,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11626 states, 11625 states have (on average 2.584602150537634) internal successors, (30046), 11625 states have internal predecessors, (30046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:43,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11626 states to 11626 states and 30046 transitions. [2021-05-03 15:24:43,022 INFO L78 Accepts]: Start accepts. Automaton has 11626 states and 30046 transitions. Word has length 36 [2021-05-03 15:24:43,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:43,022 INFO L480 AbstractCegarLoop]: Abstraction has 11626 states and 30046 transitions. [2021-05-03 15:24:43,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:43,022 INFO L276 IsEmpty]: Start isEmpty. Operand 11626 states and 30046 transitions. [2021-05-03 15:24:43,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:43,029 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:43,029 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:43,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable738,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:43,230 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:43,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:43,230 INFO L82 PathProgramCache]: Analyzing trace with hash -583714384, now seen corresponding path program 80 times [2021-05-03 15:24:43,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:43,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250788175] [2021-05-03 15:24:43,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:43,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250788175] [2021-05-03 15:24:43,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051548020] [2021-05-03 15:24:43,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:43,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:24:43,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:43,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:43,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:43,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:43,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-05-03 15:24:43,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546421945] [2021-05-03 15:24:43,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 15:24:43,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:43,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 15:24:43,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-05-03 15:24:43,579 INFO L87 Difference]: Start difference. First operand 11626 states and 30046 transitions. Second operand has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:45,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:45,032 INFO L93 Difference]: Finished difference Result 12191 states and 31159 transitions. [2021-05-03 15:24:45,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-05-03 15:24:45,032 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 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 36 [2021-05-03 15:24:45,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:45,047 INFO L225 Difference]: With dead ends: 12191 [2021-05-03 15:24:45,047 INFO L226 Difference]: Without dead ends: 12187 [2021-05-03 15:24:45,048 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2261 ImplicationChecksByTransitivity, 1356.1ms TimeCoverageRelationStatistics Valid=1724, Invalid=5416, Unknown=0, NotChecked=0, Total=7140 [2021-05-03 15:24:45,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12187 states. [2021-05-03 15:24:45,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12187 to 11626. [2021-05-03 15:24:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11626 states, 11625 states have (on average 2.5839139784946235) internal successors, (30038), 11625 states have internal predecessors, (30038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:45,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11626 states to 11626 states and 30038 transitions. [2021-05-03 15:24:45,253 INFO L78 Accepts]: Start accepts. Automaton has 11626 states and 30038 transitions. Word has length 36 [2021-05-03 15:24:45,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:45,254 INFO L480 AbstractCegarLoop]: Abstraction has 11626 states and 30038 transitions. [2021-05-03 15:24:45,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:45,254 INFO L276 IsEmpty]: Start isEmpty. Operand 11626 states and 30038 transitions. [2021-05-03 15:24:45,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:45,262 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:45,262 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:45,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable739,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:45,462 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:45,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:45,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1643832242, now seen corresponding path program 81 times [2021-05-03 15:24:45,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:45,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049040157] [2021-05-03 15:24:45,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 39 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:45,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049040157] [2021-05-03 15:24:45,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747718935] [2021-05-03 15:24:45,537 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 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:45,562 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-05-03 15:24:45,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:45,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:45,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:45,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:45,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-05-03 15:24:45,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900777166] [2021-05-03 15:24:45,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 15:24:45,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:45,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 15:24:45,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2021-05-03 15:24:45,835 INFO L87 Difference]: Start difference. First operand 11626 states and 30038 transitions. Second operand has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:47,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:47,042 INFO L93 Difference]: Finished difference Result 15216 states and 38818 transitions. [2021-05-03 15:24:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-05-03 15:24:47,042 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 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 36 [2021-05-03 15:24:47,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:47,062 INFO L225 Difference]: With dead ends: 15216 [2021-05-03 15:24:47,062 INFO L226 Difference]: Without dead ends: 15195 [2021-05-03 15:24:47,063 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1417 ImplicationChecksByTransitivity, 1009.1ms TimeCoverageRelationStatistics Valid=1176, Invalid=3654, Unknown=0, NotChecked=0, Total=4830 [2021-05-03 15:24:47,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15195 states. [2021-05-03 15:24:47,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15195 to 11850. [2021-05-03 15:24:47,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11850 states, 11849 states have (on average 2.593467803190143) internal successors, (30730), 11849 states have internal predecessors, (30730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:47,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11850 states to 11850 states and 30730 transitions. [2021-05-03 15:24:47,246 INFO L78 Accepts]: Start accepts. Automaton has 11850 states and 30730 transitions. Word has length 36 [2021-05-03 15:24:47,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:47,247 INFO L480 AbstractCegarLoop]: Abstraction has 11850 states and 30730 transitions. [2021-05-03 15:24:47,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:47,247 INFO L276 IsEmpty]: Start isEmpty. Operand 11850 states and 30730 transitions. [2021-05-03 15:24:47,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:47,255 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:47,255 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:47,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable740 [2021-05-03 15:24:47,455 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:47,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:47,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1511339966, now seen corresponding path program 82 times [2021-05-03 15:24:47,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:47,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222069471] [2021-05-03 15:24:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:47,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222069471] [2021-05-03 15:24:47,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253657576] [2021-05-03 15:24:47,533 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 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:47,555 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:24:47,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:47,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:47,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:47,805 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:47,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:47,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-05-03 15:24:47,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538248410] [2021-05-03 15:24:47,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 15:24:47,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:47,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 15:24:47,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2021-05-03 15:24:47,806 INFO L87 Difference]: Start difference. First operand 11850 states and 30730 transitions. Second operand has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:49,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:49,438 INFO L93 Difference]: Finished difference Result 13259 states and 33760 transitions. [2021-05-03 15:24:49,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-05-03 15:24:49,438 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-05-03 15:24:49,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:49,454 INFO L225 Difference]: With dead ends: 13259 [2021-05-03 15:24:49,455 INFO L226 Difference]: Without dead ends: 13241 [2021-05-03 15:24:49,455 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2419 ImplicationChecksByTransitivity, 1381.5ms TimeCoverageRelationStatistics Valid=1777, Invalid=5705, Unknown=0, NotChecked=0, Total=7482 [2021-05-03 15:24:49,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13241 states. [2021-05-03 15:24:49,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13241 to 12104. [2021-05-03 15:24:49,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12104 states, 12103 states have (on average 2.5956374452615054) internal successors, (31415), 12103 states have internal predecessors, (31415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12104 states to 12104 states and 31415 transitions. [2021-05-03 15:24:49,618 INFO L78 Accepts]: Start accepts. Automaton has 12104 states and 31415 transitions. Word has length 36 [2021-05-03 15:24:49,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:49,618 INFO L480 AbstractCegarLoop]: Abstraction has 12104 states and 31415 transitions. [2021-05-03 15:24:49,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 12104 states and 31415 transitions. [2021-05-03 15:24:49,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:49,626 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:49,626 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:49,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable741 [2021-05-03 15:24:49,826 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:49,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:49,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1219841470, now seen corresponding path program 83 times [2021-05-03 15:24:49,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:49,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545403868] [2021-05-03 15:24:49,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:49,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545403868] [2021-05-03 15:24:49,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294443396] [2021-05-03 15:24:49,905 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 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:49,929 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-05-03 15:24:49,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:49,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:49,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:50,181 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:50,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:50,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-05-03 15:24:50,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723465304] [2021-05-03 15:24:50,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-03 15:24:50,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:50,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-03 15:24:50,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=524, Unknown=0, NotChecked=0, Total=650 [2021-05-03 15:24:50,182 INFO L87 Difference]: Start difference. First operand 12104 states and 31415 transitions. Second operand has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:51,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:51,758 INFO L93 Difference]: Finished difference Result 13923 states and 35275 transitions. [2021-05-03 15:24:51,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-05-03 15:24:51,759 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 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 36 [2021-05-03 15:24:51,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:51,778 INFO L225 Difference]: With dead ends: 13923 [2021-05-03 15:24:51,778 INFO L226 Difference]: Without dead ends: 13889 [2021-05-03 15:24:51,779 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2629 ImplicationChecksByTransitivity, 1353.9ms TimeCoverageRelationStatistics Valid=1841, Invalid=5991, Unknown=0, NotChecked=0, Total=7832 [2021-05-03 15:24:51,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13889 states. [2021-05-03 15:24:51,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13889 to 11939. [2021-05-03 15:24:51,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11939 states, 11938 states have (on average 2.5983414307254145) internal successors, (31019), 11938 states have internal predecessors, (31019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11939 states to 11939 states and 31019 transitions. [2021-05-03 15:24:51,982 INFO L78 Accepts]: Start accepts. Automaton has 11939 states and 31019 transitions. Word has length 36 [2021-05-03 15:24:51,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:51,982 INFO L480 AbstractCegarLoop]: Abstraction has 11939 states and 31019 transitions. [2021-05-03 15:24:51,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:51,983 INFO L276 IsEmpty]: Start isEmpty. Operand 11939 states and 31019 transitions. [2021-05-03 15:24:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:51,990 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:51,991 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:52,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable742,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:52,191 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:52,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:52,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1660183610, now seen corresponding path program 84 times [2021-05-03 15:24:52,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:52,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995411497] [2021-05-03 15:24:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:52,300 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:52,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995411497] [2021-05-03 15:24:52,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318217952] [2021-05-03 15:24:52,300 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 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:52,326 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-05-03 15:24:52,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:52,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:52,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:52,585 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:52,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:52,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-05-03 15:24:52,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592020827] [2021-05-03 15:24:52,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-03 15:24:52,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:52,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-03 15:24:52,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2021-05-03 15:24:52,586 INFO L87 Difference]: Start difference. First operand 11939 states and 31019 transitions. Second operand has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:54,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:54,172 INFO L93 Difference]: Finished difference Result 14229 states and 35822 transitions. [2021-05-03 15:24:54,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-05-03 15:24:54,173 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-05-03 15:24:54,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:54,191 INFO L225 Difference]: With dead ends: 14229 [2021-05-03 15:24:54,192 INFO L226 Difference]: Without dead ends: 14185 [2021-05-03 15:24:54,193 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2812 ImplicationChecksByTransitivity, 1381.2ms TimeCoverageRelationStatistics Valid=1915, Invalid=6275, Unknown=0, NotChecked=0, Total=8190 [2021-05-03 15:24:54,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14185 states. [2021-05-03 15:24:54,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14185 to 11149. [2021-05-03 15:24:54,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11149 states, 11148 states have (on average 2.601184068891281) internal successors, (28998), 11148 states have internal predecessors, (28998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:54,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11149 states to 11149 states and 28998 transitions. [2021-05-03 15:24:54,359 INFO L78 Accepts]: Start accepts. Automaton has 11149 states and 28998 transitions. Word has length 36 [2021-05-03 15:24:54,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:54,359 INFO L480 AbstractCegarLoop]: Abstraction has 11149 states and 28998 transitions. [2021-05-03 15:24:54,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:54,360 INFO L276 IsEmpty]: Start isEmpty. Operand 11149 states and 28998 transitions. [2021-05-03 15:24:54,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:54,367 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:54,367 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:54,567 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable743 [2021-05-03 15:24:54,567 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:54,568 INFO L82 PathProgramCache]: Analyzing trace with hash -372782154, now seen corresponding path program 85 times [2021-05-03 15:24:54,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:54,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261141089] [2021-05-03 15:24:54,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:54,668 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:54,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261141089] [2021-05-03 15:24:54,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976983664] [2021-05-03 15:24:54,669 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 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:54,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:54,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:54,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:54,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-05-03 15:24:54,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983957296] [2021-05-03 15:24:54,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 15:24:54,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:54,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 15:24:54,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2021-05-03 15:24:54,975 INFO L87 Difference]: Start difference. First operand 11149 states and 28998 transitions. Second operand has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:56,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:56,551 INFO L93 Difference]: Finished difference Result 13990 states and 34960 transitions. [2021-05-03 15:24:56,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-05-03 15:24:56,551 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 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 36 [2021-05-03 15:24:56,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:56,569 INFO L225 Difference]: With dead ends: 13990 [2021-05-03 15:24:56,569 INFO L226 Difference]: Without dead ends: 13948 [2021-05-03 15:24:56,570 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2949 ImplicationChecksByTransitivity, 1463.3ms TimeCoverageRelationStatistics Valid=1998, Invalid=6558, Unknown=0, NotChecked=0, Total=8556 [2021-05-03 15:24:56,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13948 states. [2021-05-03 15:24:56,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13948 to 9962. [2021-05-03 15:24:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9962 states, 9961 states have (on average 2.597731151490814) internal successors, (25876), 9961 states have internal predecessors, (25876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9962 states to 9962 states and 25876 transitions. [2021-05-03 15:24:56,737 INFO L78 Accepts]: Start accepts. Automaton has 9962 states and 25876 transitions. Word has length 36 [2021-05-03 15:24:56,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:56,737 INFO L480 AbstractCegarLoop]: Abstraction has 9962 states and 25876 transitions. [2021-05-03 15:24:56,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:56,738 INFO L276 IsEmpty]: Start isEmpty. Operand 9962 states and 25876 transitions. [2021-05-03 15:24:56,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:56,744 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:56,744 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:56,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable744,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:56,944 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:56,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:56,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1742466442, now seen corresponding path program 86 times [2021-05-03 15:24:56,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:56,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232898701] [2021-05-03 15:24:56,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:57,068 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:57,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232898701] [2021-05-03 15:24:57,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013848728] [2021-05-03 15:24:57,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:57,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:24:57,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:57,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:57,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:57,354 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:57,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:57,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-05-03 15:24:57,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952012686] [2021-05-03 15:24:57,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-03 15:24:57,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:57,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-03 15:24:57,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=665, Unknown=0, NotChecked=0, Total=812 [2021-05-03 15:24:57,355 INFO L87 Difference]: Start difference. First operand 9962 states and 25876 transitions. Second operand has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:59,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:24:59,031 INFO L93 Difference]: Finished difference Result 12322 states and 30673 transitions. [2021-05-03 15:24:59,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-05-03 15:24:59,032 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 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 36 [2021-05-03 15:24:59,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:24:59,045 INFO L225 Difference]: With dead ends: 12322 [2021-05-03 15:24:59,045 INFO L226 Difference]: Without dead ends: 12322 [2021-05-03 15:24:59,046 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2304 ImplicationChecksByTransitivity, 1450.8ms TimeCoverageRelationStatistics Valid=1981, Invalid=6029, Unknown=0, NotChecked=0, Total=8010 [2021-05-03 15:24:59,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12322 states. [2021-05-03 15:24:59,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12322 to 8944. [2021-05-03 15:24:59,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8944 states, 8943 states have (on average 2.5896231689589624) internal successors, (23159), 8943 states have internal predecessors, (23159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:59,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8944 states to 8944 states and 23159 transitions. [2021-05-03 15:24:59,160 INFO L78 Accepts]: Start accepts. Automaton has 8944 states and 23159 transitions. Word has length 36 [2021-05-03 15:24:59,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:24:59,160 INFO L480 AbstractCegarLoop]: Abstraction has 8944 states and 23159 transitions. [2021-05-03 15:24:59,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:24:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 8944 states and 23159 transitions. [2021-05-03 15:24:59,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:24:59,166 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:24:59,166 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:24:59,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable745 [2021-05-03 15:24:59,369 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:24:59,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:24:59,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1833765810, now seen corresponding path program 87 times [2021-05-03 15:24:59,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:24:59,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163776109] [2021-05-03 15:24:59,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:24:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:24:59,480 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:24:59,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163776109] [2021-05-03 15:24:59,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875474495] [2021-05-03 15:24:59,480 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 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:24:59,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-05-03 15:24:59,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:24:59,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:24:59,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:24:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:24:59,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:24:59,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-05-03 15:24:59,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358257201] [2021-05-03 15:24:59,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 15:24:59,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:24:59,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 15:24:59,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2021-05-03 15:24:59,825 INFO L87 Difference]: Start difference. First operand 8944 states and 23159 transitions. Second operand has 28 states, 28 states have (on average 2.25) internal successors, (63), 27 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:01,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:01,666 INFO L93 Difference]: Finished difference Result 10626 states and 26434 transitions. [2021-05-03 15:25:01,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-05-03 15:25:01,667 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.25) internal successors, (63), 27 states have internal predecessors, (63), 0 states have call successors, (0), 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 36 [2021-05-03 15:25:01,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:01,679 INFO L225 Difference]: With dead ends: 10626 [2021-05-03 15:25:01,679 INFO L226 Difference]: Without dead ends: 10527 [2021-05-03 15:25:01,680 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3285 ImplicationChecksByTransitivity, 1695.3ms TimeCoverageRelationStatistics Valid=2020, Invalid=7486, Unknown=0, NotChecked=0, Total=9506 [2021-05-03 15:25:01,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2021-05-03 15:25:01,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 8656. [2021-05-03 15:25:01,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8656 states, 8655 states have (on average 2.577007510109763) internal successors, (22304), 8655 states have internal predecessors, (22304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8656 states to 8656 states and 22304 transitions. [2021-05-03 15:25:01,811 INFO L78 Accepts]: Start accepts. Automaton has 8656 states and 22304 transitions. Word has length 36 [2021-05-03 15:25:01,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:01,811 INFO L480 AbstractCegarLoop]: Abstraction has 8656 states and 22304 transitions. [2021-05-03 15:25:01,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.25) internal successors, (63), 27 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 8656 states and 22304 transitions. [2021-05-03 15:25:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:01,817 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:01,817 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:02,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable746,88 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:02,017 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:02,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:02,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1703939702, now seen corresponding path program 88 times [2021-05-03 15:25:02,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:02,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990386104] [2021-05-03 15:25:02,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:02,125 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:02,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990386104] [2021-05-03 15:25:02,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080116396] [2021-05-03 15:25:02,125 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 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:02,146 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:25:02,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:02,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:02,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:02,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:02,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-05-03 15:25:02,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891954955] [2021-05-03 15:25:02,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 15:25:02,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:02,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 15:25:02,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756 [2021-05-03 15:25:02,416 INFO L87 Difference]: Start difference. First operand 8656 states and 22304 transitions. Second operand has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 27 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:04,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:04,258 INFO L93 Difference]: Finished difference Result 11669 states and 28734 transitions. [2021-05-03 15:25:04,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-05-03 15:25:04,259 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 27 states have internal predecessors, (65), 0 states have call successors, (0), 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 36 [2021-05-03 15:25:04,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:04,273 INFO L225 Difference]: With dead ends: 11669 [2021-05-03 15:25:04,274 INFO L226 Difference]: Without dead ends: 11669 [2021-05-03 15:25:04,275 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2824 ImplicationChecksByTransitivity, 1608.0ms TimeCoverageRelationStatistics Valid=2270, Invalid=6660, Unknown=0, NotChecked=0, Total=8930 [2021-05-03 15:25:04,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11669 states. [2021-05-03 15:25:04,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11669 to 7769. [2021-05-03 15:25:04,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7769 states, 7768 states have (on average 2.5607621009268797) internal successors, (19892), 7768 states have internal predecessors, (19892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:04,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7769 states to 7769 states and 19892 transitions. [2021-05-03 15:25:04,404 INFO L78 Accepts]: Start accepts. Automaton has 7769 states and 19892 transitions. Word has length 36 [2021-05-03 15:25:04,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:04,405 INFO L480 AbstractCegarLoop]: Abstraction has 7769 states and 19892 transitions. [2021-05-03 15:25:04,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 27 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:04,405 INFO L276 IsEmpty]: Start isEmpty. Operand 7769 states and 19892 transitions. [2021-05-03 15:25:04,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:04,410 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:04,411 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:04,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable747,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:04,611 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:04,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:04,611 INFO L82 PathProgramCache]: Analyzing trace with hash 366880434, now seen corresponding path program 89 times [2021-05-03 15:25:04,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:04,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469742404] [2021-05-03 15:25:04,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:04,708 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:04,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469742404] [2021-05-03 15:25:04,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809692449] [2021-05-03 15:25:04,708 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 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:04,734 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-03 15:25:04,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:04,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:04,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:05,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:05,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-05-03 15:25:05,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126168499] [2021-05-03 15:25:05,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-03 15:25:05,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:05,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-03 15:25:05,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2021-05-03 15:25:05,002 INFO L87 Difference]: Start difference. First operand 7769 states and 19892 transitions. Second operand has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 26 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:06,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:06,666 INFO L93 Difference]: Finished difference Result 9358 states and 23204 transitions. [2021-05-03 15:25:06,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-05-03 15:25:06,667 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 26 states have internal predecessors, (63), 0 states have call successors, (0), 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 36 [2021-05-03 15:25:06,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:06,678 INFO L225 Difference]: With dead ends: 9358 [2021-05-03 15:25:06,679 INFO L226 Difference]: Without dead ends: 9292 [2021-05-03 15:25:06,679 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2837 ImplicationChecksByTransitivity, 1468.6ms TimeCoverageRelationStatistics Valid=1697, Invalid=6313, Unknown=0, NotChecked=0, Total=8010 [2021-05-03 15:25:06,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9292 states. [2021-05-03 15:25:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9292 to 7746. [2021-05-03 15:25:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7746 states, 7745 states have (on average 2.5536475145255) internal successors, (19778), 7745 states have internal predecessors, (19778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:06,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7746 states to 7746 states and 19778 transitions. [2021-05-03 15:25:06,797 INFO L78 Accepts]: Start accepts. Automaton has 7746 states and 19778 transitions. Word has length 36 [2021-05-03 15:25:06,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:06,797 INFO L480 AbstractCegarLoop]: Abstraction has 7746 states and 19778 transitions. [2021-05-03 15:25:06,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 26 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:06,797 INFO L276 IsEmpty]: Start isEmpty. Operand 7746 states and 19778 transitions. [2021-05-03 15:25:06,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:06,804 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:06,804 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:07,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable748,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:07,004 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:07,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:07,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1439369846, now seen corresponding path program 90 times [2021-05-03 15:25:07,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:07,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445964403] [2021-05-03 15:25:07,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:07,097 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:07,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445964403] [2021-05-03 15:25:07,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229010265] [2021-05-03 15:25:07,097 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 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:07,121 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-03 15:25:07,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:07,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:07,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:07,400 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:07,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:07,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-05-03 15:25:07,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616975444] [2021-05-03 15:25:07,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-03 15:25:07,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:07,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-03 15:25:07,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2021-05-03 15:25:07,401 INFO L87 Difference]: Start difference. First operand 7746 states and 19778 transitions. Second operand has 27 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 26 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:09,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:09,494 INFO L93 Difference]: Finished difference Result 11275 states and 27529 transitions. [2021-05-03 15:25:09,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-05-03 15:25:09,495 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 26 states have internal predecessors, (65), 0 states have call successors, (0), 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 36 [2021-05-03 15:25:09,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:09,507 INFO L225 Difference]: With dead ends: 11275 [2021-05-03 15:25:09,508 INFO L226 Difference]: Without dead ends: 11275 [2021-05-03 15:25:09,509 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3564 ImplicationChecksByTransitivity, 1780.8ms TimeCoverageRelationStatistics Valid=2740, Invalid=7562, Unknown=0, NotChecked=0, Total=10302 [2021-05-03 15:25:09,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11275 states. [2021-05-03 15:25:09,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11275 to 7094. [2021-05-03 15:25:09,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7094 states, 7093 states have (on average 2.531791907514451) internal successors, (17958), 7093 states have internal predecessors, (17958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:09,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7094 states to 7094 states and 17958 transitions. [2021-05-03 15:25:09,633 INFO L78 Accepts]: Start accepts. Automaton has 7094 states and 17958 transitions. Word has length 36 [2021-05-03 15:25:09,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:09,633 INFO L480 AbstractCegarLoop]: Abstraction has 7094 states and 17958 transitions. [2021-05-03 15:25:09,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.4074074074074074) internal successors, (65), 26 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:09,634 INFO L276 IsEmpty]: Start isEmpty. Operand 7094 states and 17958 transitions. [2021-05-03 15:25:09,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:09,638 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:09,638 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:09,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable749,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:09,839 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:09,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:09,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1442447794, now seen corresponding path program 91 times [2021-05-03 15:25:09,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:09,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469788339] [2021-05-03 15:25:09,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:09,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469788339] [2021-05-03 15:25:09,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220922623] [2021-05-03 15:25:09,921 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:09,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:09,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:10,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:10,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-05-03 15:25:10,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063568638] [2021-05-03 15:25:10,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-03 15:25:10,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:10,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-03 15:25:10,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2021-05-03 15:25:10,248 INFO L87 Difference]: Start difference. First operand 7094 states and 17958 transitions. Second operand has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:11,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:11,753 INFO L93 Difference]: Finished difference Result 8391 states and 20772 transitions. [2021-05-03 15:25:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-05-03 15:25:11,754 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 0 states have call successors, (0), 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 36 [2021-05-03 15:25:11,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:11,764 INFO L225 Difference]: With dead ends: 8391 [2021-05-03 15:25:11,764 INFO L226 Difference]: Without dead ends: 8352 [2021-05-03 15:25:11,765 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2476 ImplicationChecksByTransitivity, 1347.2ms TimeCoverageRelationStatistics Valid=1507, Invalid=5465, Unknown=0, NotChecked=0, Total=6972 [2021-05-03 15:25:11,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8352 states. [2021-05-03 15:25:11,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8352 to 7183. [2021-05-03 15:25:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7183 states, 7182 states have (on average 2.532442216652743) internal successors, (18188), 7182 states have internal predecessors, (18188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:11,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7183 states to 7183 states and 18188 transitions. [2021-05-03 15:25:11,870 INFO L78 Accepts]: Start accepts. Automaton has 7183 states and 18188 transitions. Word has length 36 [2021-05-03 15:25:11,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:11,871 INFO L480 AbstractCegarLoop]: Abstraction has 7183 states and 18188 transitions. [2021-05-03 15:25:11,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:11,871 INFO L276 IsEmpty]: Start isEmpty. Operand 7183 states and 18188 transitions. [2021-05-03 15:25:11,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:11,875 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:11,875 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:12,076 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable750 [2021-05-03 15:25:12,076 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:12,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:12,076 INFO L82 PathProgramCache]: Analyzing trace with hash -795539850, now seen corresponding path program 92 times [2021-05-03 15:25:12,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:12,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984069613] [2021-05-03 15:25:12,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:12,169 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:12,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984069613] [2021-05-03 15:25:12,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275589101] [2021-05-03 15:25:12,169 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 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:12,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:25:12,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:12,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:12,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:12,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:12,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-05-03 15:25:12,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995366660] [2021-05-03 15:25:12,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-03 15:25:12,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:12,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-03 15:25:12,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-05-03 15:25:12,465 INFO L87 Difference]: Start difference. First operand 7183 states and 18188 transitions. Second operand has 26 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:14,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:14,680 INFO L93 Difference]: Finished difference Result 11937 states and 29010 transitions. [2021-05-03 15:25:14,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-05-03 15:25:14,681 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 0 states have call successors, (0), 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 36 [2021-05-03 15:25:14,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:14,693 INFO L225 Difference]: With dead ends: 11937 [2021-05-03 15:25:14,694 INFO L226 Difference]: Without dead ends: 11937 [2021-05-03 15:25:14,694 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4334 ImplicationChecksByTransitivity, 1931.0ms TimeCoverageRelationStatistics Valid=3216, Invalid=8340, Unknown=0, NotChecked=0, Total=11556 [2021-05-03 15:25:14,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11937 states. [2021-05-03 15:25:14,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11937 to 8770. [2021-05-03 15:25:14,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8770 states, 8769 states have (on average 2.5070133424563803) internal successors, (21984), 8769 states have internal predecessors, (21984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:14,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8770 states to 8770 states and 21984 transitions. [2021-05-03 15:25:14,827 INFO L78 Accepts]: Start accepts. Automaton has 8770 states and 21984 transitions. Word has length 36 [2021-05-03 15:25:14,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:14,827 INFO L480 AbstractCegarLoop]: Abstraction has 8770 states and 21984 transitions. [2021-05-03 15:25:14,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.5) internal successors, (65), 25 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:14,827 INFO L276 IsEmpty]: Start isEmpty. Operand 8770 states and 21984 transitions. [2021-05-03 15:25:14,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:14,833 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:14,833 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:15,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable751 [2021-05-03 15:25:15,033 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:15,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:15,033 INFO L82 PathProgramCache]: Analyzing trace with hash 290495666, now seen corresponding path program 93 times [2021-05-03 15:25:15,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:15,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738141849] [2021-05-03 15:25:15,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:15,133 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:15,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738141849] [2021-05-03 15:25:15,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964862810] [2021-05-03 15:25:15,134 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 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:15,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-05-03 15:25:15,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:15,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:15,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:15,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:15,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-05-03 15:25:15,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072002757] [2021-05-03 15:25:15,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 15:25:15,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:15,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 15:25:15,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-05-03 15:25:15,463 INFO L87 Difference]: Start difference. First operand 8770 states and 21984 transitions. Second operand has 25 states, 25 states have (on average 2.52) internal successors, (63), 24 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:16,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:16,998 INFO L93 Difference]: Finished difference Result 9544 states and 23558 transitions. [2021-05-03 15:25:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-05-03 15:25:16,999 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.52) internal successors, (63), 24 states have internal predecessors, (63), 0 states have call successors, (0), 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 36 [2021-05-03 15:25:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:17,009 INFO L225 Difference]: With dead ends: 9544 [2021-05-03 15:25:17,009 INFO L226 Difference]: Without dead ends: 9526 [2021-05-03 15:25:17,010 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2221 ImplicationChecksByTransitivity, 1324.4ms TimeCoverageRelationStatistics Valid=1407, Invalid=4913, Unknown=0, NotChecked=0, Total=6320 [2021-05-03 15:25:17,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9526 states. [2021-05-03 15:25:17,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9526 to 8902. [2021-05-03 15:25:17,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8902 states, 8901 states have (on average 2.510055049994383) internal successors, (22342), 8901 states have internal predecessors, (22342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8902 states to 8902 states and 22342 transitions. [2021-05-03 15:25:17,129 INFO L78 Accepts]: Start accepts. Automaton has 8902 states and 22342 transitions. Word has length 36 [2021-05-03 15:25:17,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:17,129 INFO L480 AbstractCegarLoop]: Abstraction has 8902 states and 22342 transitions. [2021-05-03 15:25:17,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.52) internal successors, (63), 24 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:17,129 INFO L276 IsEmpty]: Start isEmpty. Operand 8902 states and 22342 transitions. [2021-05-03 15:25:17,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:17,134 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:17,134 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:17,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable752 [2021-05-03 15:25:17,335 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:17,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:17,335 INFO L82 PathProgramCache]: Analyzing trace with hash 766378614, now seen corresponding path program 94 times [2021-05-03 15:25:17,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:17,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439717456] [2021-05-03 15:25:17,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:17,420 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:17,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439717456] [2021-05-03 15:25:17,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547715088] [2021-05-03 15:25:17,420 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:17,442 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:25:17,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:17,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:17,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:17,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:17,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-05-03 15:25:17,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521767152] [2021-05-03 15:25:17,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 15:25:17,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:17,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 15:25:17,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2021-05-03 15:25:17,756 INFO L87 Difference]: Start difference. First operand 8902 states and 22342 transitions. Second operand has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:20,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:20,001 INFO L93 Difference]: Finished difference Result 15319 states and 37889 transitions. [2021-05-03 15:25:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-05-03 15:25:20,002 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 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 36 [2021-05-03 15:25:20,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:20,024 INFO L225 Difference]: With dead ends: 15319 [2021-05-03 15:25:20,024 INFO L226 Difference]: Without dead ends: 15319 [2021-05-03 15:25:20,026 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4780 ImplicationChecksByTransitivity, 1996.6ms TimeCoverageRelationStatistics Valid=3440, Invalid=8770, Unknown=0, NotChecked=0, Total=12210 [2021-05-03 15:25:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15319 states. [2021-05-03 15:25:20,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15319 to 13330. [2021-05-03 15:25:20,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 13329 states have (on average 2.5292219971490733) internal successors, (33712), 13329 states have internal predecessors, (33712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 33712 transitions. [2021-05-03 15:25:20,238 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 33712 transitions. Word has length 36 [2021-05-03 15:25:20,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:20,238 INFO L480 AbstractCegarLoop]: Abstraction has 13330 states and 33712 transitions. [2021-05-03 15:25:20,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:20,238 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 33712 transitions. [2021-05-03 15:25:20,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:20,246 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:20,246 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:20,446 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable753,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:20,447 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:20,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:20,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1179642020, now seen corresponding path program 95 times [2021-05-03 15:25:20,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:20,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170547157] [2021-05-03 15:25:20,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:20,544 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:20,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170547157] [2021-05-03 15:25:20,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65412023] [2021-05-03 15:25:20,544 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 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:20,567 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-05-03 15:25:20,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:20,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:20,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:20,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:20,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2021-05-03 15:25:20,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680055288] [2021-05-03 15:25:20,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 15:25:20,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:20,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 15:25:20,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2021-05-03 15:25:20,831 INFO L87 Difference]: Start difference. First operand 13330 states and 33712 transitions. Second operand has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:22,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:22,258 INFO L93 Difference]: Finished difference Result 14924 states and 36958 transitions. [2021-05-03 15:25:22,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-05-03 15:25:22,259 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 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 36 [2021-05-03 15:25:22,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:22,278 INFO L225 Difference]: With dead ends: 14924 [2021-05-03 15:25:22,278 INFO L226 Difference]: Without dead ends: 14920 [2021-05-03 15:25:22,279 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2102 ImplicationChecksByTransitivity, 1261.4ms TimeCoverageRelationStatistics Valid=1750, Invalid=4570, Unknown=0, NotChecked=0, Total=6320 [2021-05-03 15:25:22,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14920 states. [2021-05-03 15:25:22,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14920 to 13086. [2021-05-03 15:25:22,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13086 states, 13085 states have (on average 2.525792892625143) internal successors, (33050), 13085 states have internal predecessors, (33050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:22,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13086 states to 13086 states and 33050 transitions. [2021-05-03 15:25:22,495 INFO L78 Accepts]: Start accepts. Automaton has 13086 states and 33050 transitions. Word has length 36 [2021-05-03 15:25:22,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:22,495 INFO L480 AbstractCegarLoop]: Abstraction has 13086 states and 33050 transitions. [2021-05-03 15:25:22,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:22,495 INFO L276 IsEmpty]: Start isEmpty. Operand 13086 states and 33050 transitions. [2021-05-03 15:25:22,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:22,503 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:22,503 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:22,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable754,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:22,704 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:22,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1685988286, now seen corresponding path program 96 times [2021-05-03 15:25:22,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:22,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689945866] [2021-05-03 15:25:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 26 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:22,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689945866] [2021-05-03 15:25:22,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518289008] [2021-05-03 15:25:22,806 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 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:22,837 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-03 15:25:22,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:22,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:22,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:23,133 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:23,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:23,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 24 [2021-05-03 15:25:23,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842664109] [2021-05-03 15:25:23,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 15:25:23,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:23,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 15:25:23,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2021-05-03 15:25:23,134 INFO L87 Difference]: Start difference. First operand 13086 states and 33050 transitions. Second operand has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:24,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:24,493 INFO L93 Difference]: Finished difference Result 15282 states and 37884 transitions. [2021-05-03 15:25:24,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-05-03 15:25:24,494 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-05-03 15:25:24,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:24,513 INFO L225 Difference]: With dead ends: 15282 [2021-05-03 15:25:24,513 INFO L226 Difference]: Without dead ends: 15270 [2021-05-03 15:25:24,514 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2023 ImplicationChecksByTransitivity, 1241.2ms TimeCoverageRelationStatistics Valid=1595, Invalid=4567, Unknown=0, NotChecked=0, Total=6162 [2021-05-03 15:25:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15270 states. [2021-05-03 15:25:24,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15270 to 13017. [2021-05-03 15:25:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13017 states, 13016 states have (on average 2.528272894898586) internal successors, (32908), 13016 states have internal predecessors, (32908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:24,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13017 states to 13017 states and 32908 transitions. [2021-05-03 15:25:24,766 INFO L78 Accepts]: Start accepts. Automaton has 13017 states and 32908 transitions. Word has length 36 [2021-05-03 15:25:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:24,766 INFO L480 AbstractCegarLoop]: Abstraction has 13017 states and 32908 transitions. [2021-05-03 15:25:24,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:24,766 INFO L276 IsEmpty]: Start isEmpty. Operand 13017 states and 32908 transitions. [2021-05-03 15:25:24,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:24,774 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:24,774 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:24,974 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable755 [2021-05-03 15:25:24,974 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:24,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:24,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1913209666, now seen corresponding path program 97 times [2021-05-03 15:25:24,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:24,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354946600] [2021-05-03 15:25:24,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:25,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354946600] [2021-05-03 15:25:25,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180526821] [2021-05-03 15:25:25,065 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 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:25,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:25,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:25,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:25,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 25 [2021-05-03 15:25:25,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391181674] [2021-05-03 15:25:25,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-05-03 15:25:25,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:25,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-05-03 15:25:25,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2021-05-03 15:25:25,368 INFO L87 Difference]: Start difference. First operand 13017 states and 32908 transitions. Second operand has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:26,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:26,757 INFO L93 Difference]: Finished difference Result 16039 states and 39737 transitions. [2021-05-03 15:25:26,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-05-03 15:25:26,758 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 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 36 [2021-05-03 15:25:26,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:26,778 INFO L225 Difference]: With dead ends: 16039 [2021-05-03 15:25:26,778 INFO L226 Difference]: Without dead ends: 16019 [2021-05-03 15:25:26,779 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2051 ImplicationChecksByTransitivity, 1229.9ms TimeCoverageRelationStatistics Valid=1551, Invalid=4769, Unknown=0, NotChecked=0, Total=6320 [2021-05-03 15:25:26,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16019 states. [2021-05-03 15:25:26,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16019 to 13397. [2021-05-03 15:25:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13397 states, 13396 states have (on average 2.5326216781128696) internal successors, (33927), 13396 states have internal predecessors, (33927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:27,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 33927 transitions. [2021-05-03 15:25:27,009 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 33927 transitions. Word has length 36 [2021-05-03 15:25:27,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:27,009 INFO L480 AbstractCegarLoop]: Abstraction has 13397 states and 33927 transitions. [2021-05-03 15:25:27,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.3846153846153846) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:27,009 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 33927 transitions. [2021-05-03 15:25:27,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:27,017 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:27,017 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:27,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable756 [2021-05-03 15:25:27,218 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:27,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:27,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1229623750, now seen corresponding path program 98 times [2021-05-03 15:25:27,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:27,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473355015] [2021-05-03 15:25:27,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 20 proven. 40 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:27,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473355015] [2021-05-03 15:25:27,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801651282] [2021-05-03 15:25:27,317 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 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:27,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:25:27,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:27,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:27,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:27,618 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:27,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:27,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2021-05-03 15:25:27,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923759088] [2021-05-03 15:25:27,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-03 15:25:27,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:27,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-03 15:25:27,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2021-05-03 15:25:27,619 INFO L87 Difference]: Start difference. First operand 13397 states and 33927 transitions. Second operand has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:29,180 INFO L93 Difference]: Finished difference Result 17468 states and 43250 transitions. [2021-05-03 15:25:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-05-03 15:25:29,181 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-05-03 15:25:29,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:29,205 INFO L225 Difference]: With dead ends: 17468 [2021-05-03 15:25:29,205 INFO L226 Difference]: Without dead ends: 17440 [2021-05-03 15:25:29,206 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2204 ImplicationChecksByTransitivity, 1371.5ms TimeCoverageRelationStatistics Valid=1619, Invalid=5187, Unknown=0, NotChecked=0, Total=6806 [2021-05-03 15:25:29,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17440 states. [2021-05-03 15:25:29,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17440 to 15583. [2021-05-03 15:25:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15583 states, 15582 states have (on average 2.5360672570915157) internal successors, (39517), 15582 states have internal predecessors, (39517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:29,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15583 states to 15583 states and 39517 transitions. [2021-05-03 15:25:29,468 INFO L78 Accepts]: Start accepts. Automaton has 15583 states and 39517 transitions. Word has length 36 [2021-05-03 15:25:29,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:29,468 INFO L480 AbstractCegarLoop]: Abstraction has 15583 states and 39517 transitions. [2021-05-03 15:25:29,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.2962962962962963) internal successors, (62), 26 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 15583 states and 39517 transitions. [2021-05-03 15:25:29,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:29,477 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:29,477 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:29,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable757,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:29,677 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:29,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:29,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1433554762, now seen corresponding path program 99 times [2021-05-03 15:25:29,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:29,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307503777] [2021-05-03 15:25:29,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:29,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307503777] [2021-05-03 15:25:29,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065483340] [2021-05-03 15:25:29,794 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 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:29,818 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-05-03 15:25:29,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:29,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:29,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 23 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:30,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:30,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2021-05-03 15:25:30,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034292183] [2021-05-03 15:25:30,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 15:25:30,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:30,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 15:25:30,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2021-05-03 15:25:30,111 INFO L87 Difference]: Start difference. First operand 15583 states and 39517 transitions. Second operand has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:31,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:31,761 INFO L93 Difference]: Finished difference Result 20026 states and 49571 transitions. [2021-05-03 15:25:31,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-05-03 15:25:31,762 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 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 36 [2021-05-03 15:25:31,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:31,788 INFO L225 Difference]: With dead ends: 20026 [2021-05-03 15:25:31,788 INFO L226 Difference]: Without dead ends: 19990 [2021-05-03 15:25:31,789 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2515 ImplicationChecksByTransitivity, 1521.9ms TimeCoverageRelationStatistics Valid=1799, Invalid=5857, Unknown=0, NotChecked=0, Total=7656 [2021-05-03 15:25:31,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19990 states. [2021-05-03 15:25:32,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19990 to 17983. [2021-05-03 15:25:32,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17983 states, 17982 states have (on average 2.533644755866978) internal successors, (45560), 17982 states have internal predecessors, (45560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:32,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17983 states to 17983 states and 45560 transitions. [2021-05-03 15:25:32,120 INFO L78 Accepts]: Start accepts. Automaton has 17983 states and 45560 transitions. Word has length 36 [2021-05-03 15:25:32,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:32,120 INFO L480 AbstractCegarLoop]: Abstraction has 17983 states and 45560 transitions. [2021-05-03 15:25:32,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.2142857142857144) internal successors, (62), 27 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:32,120 INFO L276 IsEmpty]: Start isEmpty. Operand 17983 states and 45560 transitions. [2021-05-03 15:25:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-03 15:25:32,131 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:32,131 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:32,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable758 [2021-05-03 15:25:32,332 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:32,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:32,332 INFO L82 PathProgramCache]: Analyzing trace with hash 157238322, now seen corresponding path program 100 times [2021-05-03 15:25:32,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:32,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495906002] [2021-05-03 15:25:32,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:32,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495906002] [2021-05-03 15:25:32,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989138718] [2021-05-03 15:25:32,484 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 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:32,505 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:25:32,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:32,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-03 15:25:32,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:32,801 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 31 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:32,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:32,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-05-03 15:25:32,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325877567] [2021-05-03 15:25:32,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-03 15:25:32,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:32,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-03 15:25:32,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=659, Unknown=0, NotChecked=0, Total=812 [2021-05-03 15:25:32,802 INFO L87 Difference]: Start difference. First operand 17983 states and 45560 transitions. Second operand has 29 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 28 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:34,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:34,553 INFO L93 Difference]: Finished difference Result 19957 states and 49654 transitions. [2021-05-03 15:25:34,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-05-03 15:25:34,554 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 28 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 36 [2021-05-03 15:25:34,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:34,578 INFO L225 Difference]: With dead ends: 19957 [2021-05-03 15:25:34,578 INFO L226 Difference]: Without dead ends: 19913 [2021-05-03 15:25:34,578 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3033 ImplicationChecksByTransitivity, 1623.2ms TimeCoverageRelationStatistics Valid=2089, Invalid=6841, Unknown=0, NotChecked=0, Total=8930 [2021-05-03 15:25:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19913 states. [2021-05-03 15:25:34,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19913 to 18106. [2021-05-03 15:25:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18106 states, 18105 states have (on average 2.5389671361502346) internal successors, (45968), 18105 states have internal predecessors, (45968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:34,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18106 states to 18106 states and 45968 transitions. [2021-05-03 15:25:34,862 INFO L78 Accepts]: Start accepts. Automaton has 18106 states and 45968 transitions. Word has length 36 [2021-05-03 15:25:34,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:34,862 INFO L480 AbstractCegarLoop]: Abstraction has 18106 states and 45968 transitions. [2021-05-03 15:25:34,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.1379310344827585) internal successors, (62), 28 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:34,862 INFO L276 IsEmpty]: Start isEmpty. Operand 18106 states and 45968 transitions. [2021-05-03 15:25:34,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-03 15:25:34,878 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:34,878 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:35,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable759,101 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:35,101 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:35,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:35,101 INFO L82 PathProgramCache]: Analyzing trace with hash -380198988, now seen corresponding path program 101 times [2021-05-03 15:25:35,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:35,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619831339] [2021-05-03 15:25:35,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:35,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619831339] [2021-05-03 15:25:35,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923538824] [2021-05-03 15:25:35,150 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 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:35,182 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-05-03 15:25:35,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:35,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 45 conjunts are in the unsatisfiable core [2021-05-03 15:25:35,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:35,503 INFO L354 Elim1Store]: treesize reduction 96, result has 43.2 percent of original size [2021-05-03 15:25:35,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 163 treesize of output 143 [2021-05-03 15:25:36,424 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:25:36,468 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:36,885 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:25:36,885 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:163, output treesize:285 [2021-05-03 15:25:37,739 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-05-03 15:25:39,812 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-05-03 15:25:42,663 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 324 DAG size of output: 48 [2021-05-03 15:25:42,995 INFO L354 Elim1Store]: treesize reduction 118, result has 2.5 percent of original size [2021-05-03 15:25:42,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 146 treesize of output 58 [2021-05-03 15:25:42,997 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:43,130 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 84 [2021-05-03 15:25:43,131 INFO L628 ElimStorePlain]: treesize reduction 454, result has 41.9 percent of original size [2021-05-03 15:25:43,192 INFO L354 Elim1Store]: treesize reduction 81, result has 33.1 percent of original size [2021-05-03 15:25:43,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 56 treesize of output 68 [2021-05-03 15:25:43,194 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:43,238 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:43,319 INFO L354 Elim1Store]: treesize reduction 60, result has 50.4 percent of original size [2021-05-03 15:25:43,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 102 [2021-05-03 15:25:43,324 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:43,337 INFO L628 ElimStorePlain]: treesize reduction 198, result has 1.5 percent of original size [2021-05-03 15:25:43,337 INFO L518 ElimStorePlain]: Eliminatee v_prenex_80 vanished before elimination [2021-05-03 15:25:43,337 INFO L518 ElimStorePlain]: Eliminatee v_prenex_79 vanished before elimination [2021-05-03 15:25:43,337 INFO L518 ElimStorePlain]: Eliminatee v_prenex_78 vanished before elimination [2021-05-03 15:25:43,337 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:25:43,338 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 12 variables, input treesize:920, output treesize:3 [2021-05-03 15:25:43,344 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:25:43,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:43,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-05-03 15:25:43,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499097729] [2021-05-03 15:25:43,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:25:43,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:43,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:25:43,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:43,345 INFO L87 Difference]: Start difference. First operand 18106 states and 45968 transitions. Second operand has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:44,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:44,015 INFO L93 Difference]: Finished difference Result 20298 states and 51395 transitions. [2021-05-03 15:25:44,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 15:25:44,016 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 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 38 [2021-05-03 15:25:44,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:44,043 INFO L225 Difference]: With dead ends: 20298 [2021-05-03 15:25:44,044 INFO L226 Difference]: Without dead ends: 20291 [2021-05-03 15:25:44,044 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 4109.4ms TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:25:44,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20291 states. [2021-05-03 15:25:44,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20291 to 19572. [2021-05-03 15:25:44,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19572 states, 19571 states have (on average 2.545552092381585) internal successors, (49819), 19571 states have internal predecessors, (49819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:44,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19572 states to 19572 states and 49819 transitions. [2021-05-03 15:25:44,408 INFO L78 Accepts]: Start accepts. Automaton has 19572 states and 49819 transitions. Word has length 38 [2021-05-03 15:25:44,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:44,409 INFO L480 AbstractCegarLoop]: Abstraction has 19572 states and 49819 transitions. [2021-05-03 15:25:44,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 19572 states and 49819 transitions. [2021-05-03 15:25:44,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-03 15:25:44,421 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:44,421 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:44,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable760 [2021-05-03 15:25:44,623 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:44,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:44,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1616439732, now seen corresponding path program 102 times [2021-05-03 15:25:44,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:44,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736211950] [2021-05-03 15:25:44,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:25:44,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736211950] [2021-05-03 15:25:44,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209291156] [2021-05-03 15:25:44,677 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 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:44,701 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-05-03 15:25:44,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:44,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 47 conjunts are in the unsatisfiable core [2021-05-03 15:25:44,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:45,014 INFO L446 ElimStorePlain]: Different costs {15=[f], 55=[f_inv]} [2021-05-03 15:25:45,094 INFO L354 Elim1Store]: treesize reduction 48, result has 60.3 percent of original size [2021-05-03 15:25:45,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 158 [2021-05-03 15:25:47,466 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:25:47,511 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:47,576 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:47,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 307 treesize of output 214 [2021-05-03 15:25:47,651 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:47,652 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:47,653 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:25:47,653 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:201, output treesize:3 [2021-05-03 15:25:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:47,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:47,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-05-03 15:25:47,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085539661] [2021-05-03 15:25:47,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:25:47,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:47,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:25:47,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:47,665 INFO L87 Difference]: Start difference. First operand 19572 states and 49819 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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) [2021-05-03 15:25:47,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:47,935 INFO L93 Difference]: Finished difference Result 20658 states and 52485 transitions. [2021-05-03 15:25:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 15:25:47,936 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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 38 [2021-05-03 15:25:47,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:47,965 INFO L225 Difference]: With dead ends: 20658 [2021-05-03 15:25:47,966 INFO L226 Difference]: Without dead ends: 20649 [2021-05-03 15:25:47,966 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 278.1ms TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:47,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20649 states. [2021-05-03 15:25:48,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20649 to 20358. [2021-05-03 15:25:48,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20358 states, 20357 states have (on average 2.5531758117600827) internal successors, (51975), 20357 states have internal predecessors, (51975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:48,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20358 states to 20358 states and 51975 transitions. [2021-05-03 15:25:48,283 INFO L78 Accepts]: Start accepts. Automaton has 20358 states and 51975 transitions. Word has length 38 [2021-05-03 15:25:48,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:48,283 INFO L480 AbstractCegarLoop]: Abstraction has 20358 states and 51975 transitions. [2021-05-03 15:25:48,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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) [2021-05-03 15:25:48,284 INFO L276 IsEmpty]: Start isEmpty. Operand 20358 states and 51975 transitions. [2021-05-03 15:25:48,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-03 15:25:48,297 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:48,297 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:48,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1621,103 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:48,499 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:48,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:48,500 INFO L82 PathProgramCache]: Analyzing trace with hash 945582004, now seen corresponding path program 103 times [2021-05-03 15:25:48,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:48,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933276542] [2021-05-03 15:25:48,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:25:48,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933276542] [2021-05-03 15:25:48,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995467905] [2021-05-03 15:25:48,544 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 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:48,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2021-05-03 15:25:48,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:48,914 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 59 [2021-05-03 15:25:48,915 INFO L354 Elim1Store]: treesize reduction 301, result has 33.0 percent of original size [2021-05-03 15:25:48,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 14 new quantified variables, introduced 36 case distinctions, treesize of input 158 treesize of output 200 [2021-05-03 15:25:48,918 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:48,960 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:48,961 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:25:48,961 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:158, output treesize:216 [2021-05-03 15:25:49,045 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-05-03 15:25:49,350 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 39 [2021-05-03 15:25:49,371 INFO L446 ElimStorePlain]: Different costs {3=[v_prenex_83], 6=[v_prenex_84], 10=[f], 15=[v_prenex_85]} [2021-05-03 15:25:49,387 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:49,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-05-03 15:25:49,389 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:49,397 INFO L628 ElimStorePlain]: treesize reduction 162, result has 1.8 percent of original size [2021-05-03 15:25:49,397 INFO L518 ElimStorePlain]: Eliminatee v_prenex_84 vanished before elimination [2021-05-03 15:25:49,397 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-05-03 15:25:49,397 INFO L518 ElimStorePlain]: Eliminatee v_prenex_85 vanished before elimination [2021-05-03 15:25:49,398 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:25:49,399 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:181, output treesize:3 [2021-05-03 15:25:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:49,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:49,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-05-03 15:25:49,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91518809] [2021-05-03 15:25:49,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:25:49,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:49,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:25:49,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:49,410 INFO L87 Difference]: Start difference. First operand 20358 states and 51975 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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) [2021-05-03 15:25:49,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:49,710 INFO L93 Difference]: Finished difference Result 21714 states and 55240 transitions. [2021-05-03 15:25:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 15:25:49,711 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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 38 [2021-05-03 15:25:49,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:49,741 INFO L225 Difference]: With dead ends: 21714 [2021-05-03 15:25:49,741 INFO L226 Difference]: Without dead ends: 21689 [2021-05-03 15:25:49,741 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 508.6ms TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:49,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21689 states. [2021-05-03 15:25:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21689 to 20898. [2021-05-03 15:25:50,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20898 states, 20897 states have (on average 2.5599368330382353) internal successors, (53495), 20897 states have internal predecessors, (53495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20898 states to 20898 states and 53495 transitions. [2021-05-03 15:25:50,127 INFO L78 Accepts]: Start accepts. Automaton has 20898 states and 53495 transitions. Word has length 38 [2021-05-03 15:25:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:50,127 INFO L480 AbstractCegarLoop]: Abstraction has 20898 states and 53495 transitions. [2021-05-03 15:25:50,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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) [2021-05-03 15:25:50,127 INFO L276 IsEmpty]: Start isEmpty. Operand 20898 states and 53495 transitions. [2021-05-03 15:25:50,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-03 15:25:50,140 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:50,140 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:50,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2415 [2021-05-03 15:25:50,341 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:50,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:50,342 INFO L82 PathProgramCache]: Analyzing trace with hash 496399796, now seen corresponding path program 104 times [2021-05-03 15:25:50,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:50,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539516583] [2021-05-03 15:25:50,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:50,391 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:25:50,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539516583] [2021-05-03 15:25:50,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798618206] [2021-05-03 15:25:50,391 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 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:50,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:25:50,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:50,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2021-05-03 15:25:50,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:50,709 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 57 [2021-05-03 15:25:50,710 INFO L354 Elim1Store]: treesize reduction 190, result has 38.5 percent of original size [2021-05-03 15:25:50,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 28 case distinctions, treesize of input 160 treesize of output 167 [2021-05-03 15:25:50,713 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:50,754 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:50,755 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:25:50,755 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:160, output treesize:186 [2021-05-03 15:25:50,839 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-05-03 15:25:51,049 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2021-05-03 15:25:51,141 INFO L446 ElimStorePlain]: Different costs {3=[v_prenex_86], 6=[v_prenex_88], 10=[f], 15=[v_prenex_87]} [2021-05-03 15:25:51,156 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:51,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-05-03 15:25:51,159 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:51,170 INFO L628 ElimStorePlain]: treesize reduction 162, result has 1.8 percent of original size [2021-05-03 15:25:51,170 INFO L518 ElimStorePlain]: Eliminatee v_prenex_88 vanished before elimination [2021-05-03 15:25:51,170 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-05-03 15:25:51,170 INFO L518 ElimStorePlain]: Eliminatee v_prenex_87 vanished before elimination [2021-05-03 15:25:51,171 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:25:51,171 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:181, output treesize:3 [2021-05-03 15:25:51,186 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:51,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:51,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-05-03 15:25:51,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809635183] [2021-05-03 15:25:51,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:25:51,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:51,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:25:51,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:51,187 INFO L87 Difference]: Start difference. First operand 20898 states and 53495 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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) [2021-05-03 15:25:51,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:51,524 INFO L93 Difference]: Finished difference Result 22481 states and 57375 transitions. [2021-05-03 15:25:51,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 15:25:51,524 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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 38 [2021-05-03 15:25:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:51,554 INFO L225 Difference]: With dead ends: 22481 [2021-05-03 15:25:51,554 INFO L226 Difference]: Without dead ends: 22452 [2021-05-03 15:25:51,554 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 464.5ms TimeCoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:51,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22452 states. [2021-05-03 15:25:51,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22452 to 21528. [2021-05-03 15:25:51,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21528 states, 21527 states have (on average 2.5663585265016025) internal successors, (55246), 21527 states have internal predecessors, (55246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:51,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21528 states to 21528 states and 55246 transitions. [2021-05-03 15:25:51,915 INFO L78 Accepts]: Start accepts. Automaton has 21528 states and 55246 transitions. Word has length 38 [2021-05-03 15:25:51,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:51,915 INFO L480 AbstractCegarLoop]: Abstraction has 21528 states and 55246 transitions. [2021-05-03 15:25:51,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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) [2021-05-03 15:25:51,915 INFO L276 IsEmpty]: Start isEmpty. Operand 21528 states and 55246 transitions. [2021-05-03 15:25:51,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-03 15:25:51,931 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:51,931 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:52,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2421 [2021-05-03 15:25:52,131 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:52,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:52,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1670972492, now seen corresponding path program 105 times [2021-05-03 15:25:52,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:52,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116700817] [2021-05-03 15:25:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:52,178 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:25:52,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116700817] [2021-05-03 15:25:52,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728072048] [2021-05-03 15:25:52,178 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 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:52,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-05-03 15:25:52,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:52,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 43 conjunts are in the unsatisfiable core [2021-05-03 15:25:52,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:52,495 INFO L446 ElimStorePlain]: Different costs {28=[f_inv], 36=[f]} [2021-05-03 15:25:52,601 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 54 [2021-05-03 15:25:52,602 INFO L354 Elim1Store]: treesize reduction 171, result has 36.0 percent of original size [2021-05-03 15:25:52,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 14 new quantified variables, introduced 28 case distinctions, treesize of input 213 treesize of output 170 [2021-05-03 15:25:52,759 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-05-03 15:25:53,167 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:25:53,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:53,272 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:53,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 231 treesize of output 211 [2021-05-03 15:25:53,543 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:53,547 INFO L628 ElimStorePlain]: treesize reduction 9, result has 25.0 percent of original size [2021-05-03 15:25:53,547 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:25:53,547 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:213, output treesize:3 [2021-05-03 15:25:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:53,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:53,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-05-03 15:25:53,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407461973] [2021-05-03 15:25:53,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:25:53,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:53,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:25:53,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:53,560 INFO L87 Difference]: Start difference. First operand 21528 states and 55246 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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) [2021-05-03 15:25:53,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:53,791 INFO L93 Difference]: Finished difference Result 23080 states and 59124 transitions. [2021-05-03 15:25:53,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-03 15:25:53,792 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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 38 [2021-05-03 15:25:53,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:53,822 INFO L225 Difference]: With dead ends: 23080 [2021-05-03 15:25:53,823 INFO L226 Difference]: Without dead ends: 23054 [2021-05-03 15:25:53,823 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 264.3ms TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23054 states. [2021-05-03 15:25:54,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23054 to 22204. [2021-05-03 15:25:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22204 states, 22203 states have (on average 2.572535242985182) internal successors, (57118), 22203 states have internal predecessors, (57118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:25:54,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22204 states to 22204 states and 57118 transitions. [2021-05-03 15:25:54,201 INFO L78 Accepts]: Start accepts. Automaton has 22204 states and 57118 transitions. Word has length 38 [2021-05-03 15:25:54,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:25:54,201 INFO L480 AbstractCegarLoop]: Abstraction has 22204 states and 57118 transitions. [2021-05-03 15:25:54,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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) [2021-05-03 15:25:54,201 INFO L276 IsEmpty]: Start isEmpty. Operand 22204 states and 57118 transitions. [2021-05-03 15:25:54,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-03 15:25:54,215 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:25:54,215 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:25:54,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2433 [2021-05-03 15:25:54,416 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:25:54,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:25:54,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1456602700, now seen corresponding path program 106 times [2021-05-03 15:25:54,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:25:54,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558916097] [2021-05-03 15:25:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:25:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:25:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:25:54,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558916097] [2021-05-03 15:25:54,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009915413] [2021-05-03 15:25:54,463 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 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:25:54,485 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:25:54,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:25:54,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2021-05-03 15:25:54,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:25:54,811 INFO L354 Elim1Store]: treesize reduction 48, result has 63.4 percent of original size [2021-05-03 15:25:54,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 140 treesize of output 129 [2021-05-03 15:25:54,814 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:54,857 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:54,858 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:25:54,858 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:140, output treesize:284 [2021-05-03 15:25:55,334 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-05-03 15:25:57,763 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 324 DAG size of output: 48 [2021-05-03 15:25:58,485 INFO L446 ElimStorePlain]: Different costs {10=[v_prenex_100], 15=[f, v_prenex_101, v_prenex_99, v_prenex_102, v_prenex_103]} [2021-05-03 15:25:58,497 INFO L354 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2021-05-03 15:25:58,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 160 treesize of output 46 [2021-05-03 15:25:58,499 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:58,656 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 81 [2021-05-03 15:25:58,656 INFO L628 ElimStorePlain]: treesize reduction 447, result has 42.9 percent of original size [2021-05-03 15:25:58,746 INFO L354 Elim1Store]: treesize reduction 60, result has 50.4 percent of original size [2021-05-03 15:25:58,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 87 treesize of output 99 [2021-05-03 15:25:58,750 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:58,791 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:58,814 INFO L354 Elim1Store]: treesize reduction 74, result has 8.6 percent of original size [2021-05-03 15:25:58,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 35 [2021-05-03 15:25:58,815 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:58,849 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:58,899 INFO L354 Elim1Store]: treesize reduction 44, result has 45.7 percent of original size [2021-05-03 15:25:58,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 62 [2021-05-03 15:25:58,901 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:58,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:58,960 INFO L354 Elim1Store]: treesize reduction 66, result has 18.5 percent of original size [2021-05-03 15:25:58,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 52 treesize of output 40 [2021-05-03 15:25:58,962 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:58,988 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:59,022 INFO L354 Elim1Store]: treesize reduction 57, result has 29.6 percent of original size [2021-05-03 15:25:59,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 49 [2021-05-03 15:25:59,024 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 15:25:59,047 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:25:59,050 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:25:59,050 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:936, output treesize:3 [2021-05-03 15:25:59,062 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:25:59,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:25:59,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-05-03 15:25:59,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489066409] [2021-05-03 15:25:59,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:25:59,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:25:59,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:25:59,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:59,063 INFO L87 Difference]: Start difference. First operand 22204 states and 57118 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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) [2021-05-03 15:25:59,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:25:59,618 INFO L93 Difference]: Finished difference Result 23947 states and 61327 transitions. [2021-05-03 15:25:59,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 15:25:59,619 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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 38 [2021-05-03 15:25:59,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:25:59,650 INFO L225 Difference]: With dead ends: 23947 [2021-05-03 15:25:59,651 INFO L226 Difference]: Without dead ends: 23910 [2021-05-03 15:25:59,651 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2588.4ms TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:25:59,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23910 states. [2021-05-03 15:25:59,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23910 to 22942. [2021-05-03 15:26:00,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22942 states, 22941 states have (on average 2.580489080685236) internal successors, (59199), 22941 states have internal predecessors, (59199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:00,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22942 states to 22942 states and 59199 transitions. [2021-05-03 15:26:00,059 INFO L78 Accepts]: Start accepts. Automaton has 22942 states and 59199 transitions. Word has length 38 [2021-05-03 15:26:00,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:00,059 INFO L480 AbstractCegarLoop]: Abstraction has 22942 states and 59199 transitions. [2021-05-03 15:26:00,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 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) [2021-05-03 15:26:00,059 INFO L276 IsEmpty]: Start isEmpty. Operand 22942 states and 59199 transitions. [2021-05-03 15:26:00,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-03 15:26:00,074 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:00,074 INFO L551 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:00,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2682,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:00,274 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:00,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:00,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1605662796, now seen corresponding path program 107 times [2021-05-03 15:26:00,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:00,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365388131] [2021-05-03 15:26:00,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:26:00,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365388131] [2021-05-03 15:26:00,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135838140] [2021-05-03 15:26:00,322 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 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:00,345 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-05-03 15:26:00,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:00,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 45 conjunts are in the unsatisfiable core [2021-05-03 15:26:00,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:00,649 INFO L354 Elim1Store]: treesize reduction 96, result has 43.2 percent of original size [2021-05-03 15:26:00,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 163 treesize of output 143 [2021-05-03 15:26:00,792 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-05-03 15:26:01,531 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:26:01,577 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:26:01,987 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:26:01,988 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:163, output treesize:285 [2021-05-03 15:26:02,884 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-05-03 15:26:04,832 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2021-05-03 15:26:05,117 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2021-05-03 15:26:07,351 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 324 DAG size of output: 48 [2021-05-03 15:26:07,740 INFO L354 Elim1Store]: treesize reduction 101, result has 16.5 percent of original size [2021-05-03 15:26:07,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 156 treesize of output 76 [2021-05-03 15:26:07,743 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:26:07,886 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 85 [2021-05-03 15:26:07,886 INFO L628 ElimStorePlain]: treesize reduction 442, result has 42.7 percent of original size [2021-05-03 15:26:07,923 INFO L354 Elim1Store]: treesize reduction 108, result has 10.7 percent of original size [2021-05-03 15:26:07,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 55 treesize of output 40 [2021-05-03 15:26:07,924 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:26:07,969 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:26:08,009 INFO L354 Elim1Store]: treesize reduction 103, result has 14.9 percent of original size [2021-05-03 15:26:08,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 56 treesize of output 46 [2021-05-03 15:26:08,011 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:26:08,051 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:26:08,085 INFO L354 Elim1Store]: treesize reduction 111, result has 8.3 percent of original size [2021-05-03 15:26:08,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 75 treesize of output 41 [2021-05-03 15:26:08,086 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 15:26:08,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:26:08,204 INFO L354 Elim1Store]: treesize reduction 60, result has 50.4 percent of original size [2021-05-03 15:26:08,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 102 [2021-05-03 15:26:08,207 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 15:26:08,218 INFO L628 ElimStorePlain]: treesize reduction 84, result has 3.4 percent of original size [2021-05-03 15:26:08,218 INFO L518 ElimStorePlain]: Eliminatee v_prenex_117 vanished before elimination [2021-05-03 15:26:08,219 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:26:08,219 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 12 variables, input treesize:920, output treesize:3 [2021-05-03 15:26:08,230 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:26:08,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:08,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 20 [2021-05-03 15:26:08,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501254034] [2021-05-03 15:26:08,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-03 15:26:08,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:08,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-03 15:26:08,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2021-05-03 15:26:08,231 INFO L87 Difference]: Start difference. First operand 22942 states and 59199 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 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) [2021-05-03 15:26:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:08,923 INFO L93 Difference]: Finished difference Result 24000 states and 61703 transitions. [2021-05-03 15:26:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 15:26:08,924 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 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 38 [2021-05-03 15:26:08,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:08,959 INFO L225 Difference]: With dead ends: 24000 [2021-05-03 15:26:08,959 INFO L226 Difference]: Without dead ends: 23993 [2021-05-03 15:26:08,960 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3716.8ms TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:26:08,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23993 states. [2021-05-03 15:26:09,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23993 to 23411. [2021-05-03 15:26:09,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23411 states, 23410 states have (on average 2.5850918410935497) internal successors, (60517), 23410 states have internal predecessors, (60517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:09,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23411 states to 23411 states and 60517 transitions. [2021-05-03 15:26:09,307 INFO L78 Accepts]: Start accepts. Automaton has 23411 states and 60517 transitions. Word has length 38 [2021-05-03 15:26:09,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:09,308 INFO L480 AbstractCegarLoop]: Abstraction has 23411 states and 60517 transitions. [2021-05-03 15:26:09,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 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) [2021-05-03 15:26:09,308 INFO L276 IsEmpty]: Start isEmpty. Operand 23411 states and 60517 transitions. [2021-05-03 15:26:09,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:09,434 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:09,434 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:09,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2830 [2021-05-03 15:26:09,634 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:09,635 INFO L82 PathProgramCache]: Analyzing trace with hash -36252106, now seen corresponding path program 108 times [2021-05-03 15:26:09,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:09,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531179219] [2021-05-03 15:26:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:09,806 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:09,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531179219] [2021-05-03 15:26:09,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429267797] [2021-05-03 15:26:09,806 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 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:09,831 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-05-03 15:26:09,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:09,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:09,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:10,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:10,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 33 [2021-05-03 15:26:10,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047774095] [2021-05-03 15:26:10,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-03 15:26:10,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:10,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-03 15:26:10,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122 [2021-05-03 15:26:10,187 INFO L87 Difference]: Start difference. First operand 23411 states and 60517 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 33 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) [2021-05-03 15:26:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:12,571 INFO L93 Difference]: Finished difference Result 25898 states and 65777 transitions. [2021-05-03 15:26:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-05-03 15:26:12,572 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 33 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 40 [2021-05-03 15:26:12,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:12,607 INFO L225 Difference]: With dead ends: 25898 [2021-05-03 15:26:12,608 INFO L226 Difference]: Without dead ends: 25898 [2021-05-03 15:26:12,609 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3673 ImplicationChecksByTransitivity, 2065.3ms TimeCoverageRelationStatistics Valid=3180, Invalid=9030, Unknown=0, NotChecked=0, Total=12210 [2021-05-03 15:26:12,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25898 states. [2021-05-03 15:26:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25898 to 21896. [2021-05-03 15:26:12,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21896 states, 21895 states have (on average 2.5780771865722767) internal successors, (56447), 21895 states have internal predecessors, (56447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21896 states to 21896 states and 56447 transitions. [2021-05-03 15:26:12,956 INFO L78 Accepts]: Start accepts. Automaton has 21896 states and 56447 transitions. Word has length 40 [2021-05-03 15:26:12,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:12,956 INFO L480 AbstractCegarLoop]: Abstraction has 21896 states and 56447 transitions. [2021-05-03 15:26:12,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 33 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) [2021-05-03 15:26:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 21896 states and 56447 transitions. [2021-05-03 15:26:12,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:12,972 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:12,972 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:13,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3691,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:13,172 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:13,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:13,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1222061710, now seen corresponding path program 109 times [2021-05-03 15:26:13,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:13,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809291997] [2021-05-03 15:26:13,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:13,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809291997] [2021-05-03 15:26:13,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475736186] [2021-05-03 15:26:13,341 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 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:13,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:13,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:13,739 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:13,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:13,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-05-03 15:26:13,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807973139] [2021-05-03 15:26:13,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-03 15:26:13,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:13,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-03 15:26:13,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2021-05-03 15:26:13,740 INFO L87 Difference]: Start difference. First operand 21896 states and 56447 transitions. Second operand has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 32 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:17,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:17,654 INFO L93 Difference]: Finished difference Result 30410 states and 76384 transitions. [2021-05-03 15:26:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-05-03 15:26:17,655 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 32 states have internal predecessors, (72), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:17,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:17,700 INFO L225 Difference]: With dead ends: 30410 [2021-05-03 15:26:17,700 INFO L226 Difference]: Without dead ends: 30222 [2021-05-03 15:26:17,702 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7844 ImplicationChecksByTransitivity, 3643.1ms TimeCoverageRelationStatistics Valid=4727, Invalid=17923, Unknown=0, NotChecked=0, Total=22650 [2021-05-03 15:26:17,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30222 states. [2021-05-03 15:26:18,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30222 to 22632. [2021-05-03 15:26:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22632 states, 22631 states have (on average 2.5780124607838806) internal successors, (58343), 22631 states have internal predecessors, (58343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22632 states to 22632 states and 58343 transitions. [2021-05-03 15:26:18,165 INFO L78 Accepts]: Start accepts. Automaton has 22632 states and 58343 transitions. Word has length 40 [2021-05-03 15:26:18,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:18,165 INFO L480 AbstractCegarLoop]: Abstraction has 22632 states and 58343 transitions. [2021-05-03 15:26:18,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 32 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:18,165 INFO L276 IsEmpty]: Start isEmpty. Operand 22632 states and 58343 transitions. [2021-05-03 15:26:18,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:18,181 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:18,181 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:18,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3692 [2021-05-03 15:26:18,382 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:18,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:18,382 INFO L82 PathProgramCache]: Analyzing trace with hash -714294378, now seen corresponding path program 110 times [2021-05-03 15:26:18,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:18,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137797732] [2021-05-03 15:26:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:18,522 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:18,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137797732] [2021-05-03 15:26:18,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61357797] [2021-05-03 15:26:18,522 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 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:18,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:26:18,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:18,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:18,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:18,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:18,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-05-03 15:26:18,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563119376] [2021-05-03 15:26:18,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-03 15:26:18,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:18,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-03 15:26:18,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2021-05-03 15:26:18,955 INFO L87 Difference]: Start difference. First operand 22632 states and 58343 transitions. Second operand has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:22,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:22,163 INFO L93 Difference]: Finished difference Result 39864 states and 101563 transitions. [2021-05-03 15:26:22,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-05-03 15:26:22,164 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:22,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:22,224 INFO L225 Difference]: With dead ends: 39864 [2021-05-03 15:26:22,224 INFO L226 Difference]: Without dead ends: 39844 [2021-05-03 15:26:22,226 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6651 ImplicationChecksByTransitivity, 2815.1ms TimeCoverageRelationStatistics Valid=4595, Invalid=12961, Unknown=0, NotChecked=0, Total=17556 [2021-05-03 15:26:22,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39844 states. [2021-05-03 15:26:22,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39844 to 29497. [2021-05-03 15:26:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29497 states, 29496 states have (on average 2.577230810957418) internal successors, (76018), 29496 states have internal predecessors, (76018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29497 states to 29497 states and 76018 transitions. [2021-05-03 15:26:22,781 INFO L78 Accepts]: Start accepts. Automaton has 29497 states and 76018 transitions. Word has length 40 [2021-05-03 15:26:22,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:22,781 INFO L480 AbstractCegarLoop]: Abstraction has 29497 states and 76018 transitions. [2021-05-03 15:26:22,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:22,782 INFO L276 IsEmpty]: Start isEmpty. Operand 29497 states and 76018 transitions. [2021-05-03 15:26:22,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:22,804 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:22,804 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:23,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3693 [2021-05-03 15:26:23,016 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:23,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:23,016 INFO L82 PathProgramCache]: Analyzing trace with hash -2098192460, now seen corresponding path program 111 times [2021-05-03 15:26:23,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:23,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666723668] [2021-05-03 15:26:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:23,106 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:23,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666723668] [2021-05-03 15:26:23,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481910766] [2021-05-03 15:26:23,107 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 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:23,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-05-03 15:26:23,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:23,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:23,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:23,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:23,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-05-03 15:26:23,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719348545] [2021-05-03 15:26:23,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-03 15:26:23,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:23,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-03 15:26:23,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=544, Unknown=0, NotChecked=0, Total=702 [2021-05-03 15:26:23,513 INFO L87 Difference]: Start difference. First operand 29497 states and 76018 transitions. Second operand has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:25,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:25,788 INFO L93 Difference]: Finished difference Result 30394 states and 77833 transitions. [2021-05-03 15:26:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-05-03 15:26:25,789 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:25,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:25,833 INFO L225 Difference]: With dead ends: 30394 [2021-05-03 15:26:25,833 INFO L226 Difference]: Without dead ends: 30390 [2021-05-03 15:26:25,834 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3712 ImplicationChecksByTransitivity, 2052.8ms TimeCoverageRelationStatistics Valid=2606, Invalid=8314, Unknown=0, NotChecked=0, Total=10920 [2021-05-03 15:26:25,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30390 states. [2021-05-03 15:26:26,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30390 to 29497. [2021-05-03 15:26:26,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29497 states, 29496 states have (on average 2.5766883645240033) internal successors, (76002), 29496 states have internal predecessors, (76002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29497 states to 29497 states and 76002 transitions. [2021-05-03 15:26:26,369 INFO L78 Accepts]: Start accepts. Automaton has 29497 states and 76002 transitions. Word has length 40 [2021-05-03 15:26:26,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:26,369 INFO L480 AbstractCegarLoop]: Abstraction has 29497 states and 76002 transitions. [2021-05-03 15:26:26,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:26,369 INFO L276 IsEmpty]: Start isEmpty. Operand 29497 states and 76002 transitions. [2021-05-03 15:26:26,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:26,387 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:26,387 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:26,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3694 [2021-05-03 15:26:26,588 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:26,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:26,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1992334194, now seen corresponding path program 112 times [2021-05-03 15:26:26,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:26,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46400348] [2021-05-03 15:26:26,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 53 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:26:26,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46400348] [2021-05-03 15:26:26,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268005731] [2021-05-03 15:26:26,675 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 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:26,697 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:26:26,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:26,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:26,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:27,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:27,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-05-03 15:26:27,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93025431] [2021-05-03 15:26:27,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-03 15:26:27,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:27,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-03 15:26:27,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2021-05-03 15:26:27,030 INFO L87 Difference]: Start difference. First operand 29497 states and 76002 transitions. Second operand has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 26 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:28,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:28,750 INFO L93 Difference]: Finished difference Result 37584 states and 96225 transitions. [2021-05-03 15:26:28,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-05-03 15:26:28,751 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 26 states have internal predecessors, (72), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:28,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:28,810 INFO L225 Difference]: With dead ends: 37584 [2021-05-03 15:26:28,811 INFO L226 Difference]: Without dead ends: 37560 [2021-05-03 15:26:28,812 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2330 ImplicationChecksByTransitivity, 1453.3ms TimeCoverageRelationStatistics Valid=1833, Invalid=5649, Unknown=0, NotChecked=0, Total=7482 [2021-05-03 15:26:28,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37560 states. [2021-05-03 15:26:29,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37560 to 29719. [2021-05-03 15:26:29,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29719 states, 29718 states have (on average 2.5852345379904436) internal successors, (76828), 29718 states have internal predecessors, (76828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29719 states to 29719 states and 76828 transitions. [2021-05-03 15:26:29,348 INFO L78 Accepts]: Start accepts. Automaton has 29719 states and 76828 transitions. Word has length 40 [2021-05-03 15:26:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:29,349 INFO L480 AbstractCegarLoop]: Abstraction has 29719 states and 76828 transitions. [2021-05-03 15:26:29,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 26 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 29719 states and 76828 transitions. [2021-05-03 15:26:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:29,365 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:29,365 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:29,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3695,113 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:29,566 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:29,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:29,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1162838014, now seen corresponding path program 113 times [2021-05-03 15:26:29,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:29,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721375343] [2021-05-03 15:26:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:29,660 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:29,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721375343] [2021-05-03 15:26:29,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918991522] [2021-05-03 15:26:29,661 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 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:29,686 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-05-03 15:26:29,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:29,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:29,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:30,030 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:30,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:30,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-05-03 15:26:30,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24617327] [2021-05-03 15:26:30,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 15:26:30,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:30,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 15:26:30,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=602, Unknown=0, NotChecked=0, Total=756 [2021-05-03 15:26:30,031 INFO L87 Difference]: Start difference. First operand 29719 states and 76828 transitions. Second operand has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:30,153 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2021-05-03 15:26:32,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:32,699 INFO L93 Difference]: Finished difference Result 32131 states and 82168 transitions. [2021-05-03 15:26:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-05-03 15:26:32,700 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:32,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:32,746 INFO L225 Difference]: With dead ends: 32131 [2021-05-03 15:26:32,746 INFO L226 Difference]: Without dead ends: 32111 [2021-05-03 15:26:32,747 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3894 ImplicationChecksByTransitivity, 2228.1ms TimeCoverageRelationStatistics Valid=2672, Invalid=8670, Unknown=0, NotChecked=0, Total=11342 [2021-05-03 15:26:32,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32111 states. [2021-05-03 15:26:33,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32111 to 30307. [2021-05-03 15:26:33,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30307 states, 30306 states have (on average 2.587045469543985) internal successors, (78403), 30306 states have internal predecessors, (78403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30307 states to 30307 states and 78403 transitions. [2021-05-03 15:26:33,262 INFO L78 Accepts]: Start accepts. Automaton has 30307 states and 78403 transitions. Word has length 40 [2021-05-03 15:26:33,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:33,262 INFO L480 AbstractCegarLoop]: Abstraction has 30307 states and 78403 transitions. [2021-05-03 15:26:33,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:33,262 INFO L276 IsEmpty]: Start isEmpty. Operand 30307 states and 78403 transitions. [2021-05-03 15:26:33,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:33,280 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:33,280 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:33,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3696,114 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:33,481 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:33,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:33,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1839241602, now seen corresponding path program 114 times [2021-05-03 15:26:33,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:33,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052665157] [2021-05-03 15:26:33,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:33,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052665157] [2021-05-03 15:26:33,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813680389] [2021-05-03 15:26:33,619 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 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:33,654 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-05-03 15:26:33,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:33,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:33,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:34,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:34,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-05-03 15:26:34,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058043474] [2021-05-03 15:26:34,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-03 15:26:34,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:34,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-03 15:26:34,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=658, Unknown=0, NotChecked=0, Total=812 [2021-05-03 15:26:34,096 INFO L87 Difference]: Start difference. First operand 30307 states and 78403 transitions. Second operand has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:36,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:36,515 INFO L93 Difference]: Finished difference Result 33401 states and 85130 transitions. [2021-05-03 15:26:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-05-03 15:26:36,516 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:36,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:36,564 INFO L225 Difference]: With dead ends: 33401 [2021-05-03 15:26:36,565 INFO L226 Difference]: Without dead ends: 33361 [2021-05-03 15:26:36,566 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4153 ImplicationChecksByTransitivity, 2153.8ms TimeCoverageRelationStatistics Valid=2749, Invalid=9023, Unknown=0, NotChecked=0, Total=11772 [2021-05-03 15:26:36,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33361 states. [2021-05-03 15:26:37,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33361 to 30181. [2021-05-03 15:26:37,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30181 states, 30180 states have (on average 2.591186216037111) internal successors, (78202), 30180 states have internal predecessors, (78202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30181 states to 30181 states and 78202 transitions. [2021-05-03 15:26:37,180 INFO L78 Accepts]: Start accepts. Automaton has 30181 states and 78202 transitions. Word has length 40 [2021-05-03 15:26:37,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:37,180 INFO L480 AbstractCegarLoop]: Abstraction has 30181 states and 78202 transitions. [2021-05-03 15:26:37,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:37,180 INFO L276 IsEmpty]: Start isEmpty. Operand 30181 states and 78202 transitions. [2021-05-03 15:26:37,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:37,199 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:37,199 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:37,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3697,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:37,401 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:37,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:37,402 INFO L82 PathProgramCache]: Analyzing trace with hash 971939322, now seen corresponding path program 115 times [2021-05-03 15:26:37,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:37,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668579780] [2021-05-03 15:26:37,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:37,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668579780] [2021-05-03 15:26:37,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860898139] [2021-05-03 15:26:37,512 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 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:37,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:37,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:37,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:37,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-05-03 15:26:37,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33556865] [2021-05-03 15:26:37,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-03 15:26:37,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:37,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-03 15:26:37,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2021-05-03 15:26:37,902 INFO L87 Difference]: Start difference. First operand 30181 states and 78202 transitions. Second operand has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:40,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:40,286 INFO L93 Difference]: Finished difference Result 33916 states and 86143 transitions. [2021-05-03 15:26:40,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-05-03 15:26:40,287 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:40,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:40,338 INFO L225 Difference]: With dead ends: 33916 [2021-05-03 15:26:40,338 INFO L226 Difference]: Without dead ends: 33862 [2021-05-03 15:26:40,340 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4387 ImplicationChecksByTransitivity, 2054.9ms TimeCoverageRelationStatistics Valid=2836, Invalid=9374, Unknown=0, NotChecked=0, Total=12210 [2021-05-03 15:26:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33862 states. [2021-05-03 15:26:40,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33862 to 28876. [2021-05-03 15:26:40,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28876 states, 28875 states have (on average 2.596987012987013) internal successors, (74988), 28875 states have internal predecessors, (74988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28876 states to 28876 states and 74988 transitions. [2021-05-03 15:26:40,815 INFO L78 Accepts]: Start accepts. Automaton has 28876 states and 74988 transitions. Word has length 40 [2021-05-03 15:26:40,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:40,815 INFO L480 AbstractCegarLoop]: Abstraction has 28876 states and 74988 transitions. [2021-05-03 15:26:40,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:40,816 INFO L276 IsEmpty]: Start isEmpty. Operand 28876 states and 74988 transitions. [2021-05-03 15:26:40,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:40,832 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:40,833 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:41,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3698,116 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:41,033 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:41,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:41,033 INFO L82 PathProgramCache]: Analyzing trace with hash 982378102, now seen corresponding path program 116 times [2021-05-03 15:26:41,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:41,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700308859] [2021-05-03 15:26:41,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:41,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700308859] [2021-05-03 15:26:41,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021155140] [2021-05-03 15:26:41,190 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 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 15:26:41,222 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:26:41,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:41,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:41,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:41,667 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:41,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:41,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-05-03 15:26:41,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910125981] [2021-05-03 15:26:41,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-03 15:26:41,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:41,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-03 15:26:41,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=764, Unknown=0, NotChecked=0, Total=930 [2021-05-03 15:26:41,669 INFO L87 Difference]: Start difference. First operand 28876 states and 74988 transitions. Second operand has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:44,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:44,143 INFO L93 Difference]: Finished difference Result 33473 states and 84685 transitions. [2021-05-03 15:26:44,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-05-03 15:26:44,144 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:44,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:44,193 INFO L225 Difference]: With dead ends: 33473 [2021-05-03 15:26:44,193 INFO L226 Difference]: Without dead ends: 33417 [2021-05-03 15:26:44,194 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4604 ImplicationChecksByTransitivity, 2303.7ms TimeCoverageRelationStatistics Valid=2932, Invalid=9724, Unknown=0, NotChecked=0, Total=12656 [2021-05-03 15:26:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33417 states. [2021-05-03 15:26:44,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33417 to 26468. [2021-05-03 15:26:44,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26468 states, 26467 states have (on average 2.601541542297956) internal successors, (68855), 26467 states have internal predecessors, (68855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:44,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26468 states to 26468 states and 68855 transitions. [2021-05-03 15:26:44,681 INFO L78 Accepts]: Start accepts. Automaton has 26468 states and 68855 transitions. Word has length 40 [2021-05-03 15:26:44,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:44,681 INFO L480 AbstractCegarLoop]: Abstraction has 26468 states and 68855 transitions. [2021-05-03 15:26:44,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:44,681 INFO L276 IsEmpty]: Start isEmpty. Operand 26468 states and 68855 transitions. [2021-05-03 15:26:44,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:44,697 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:44,697 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:44,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3699,117 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:44,897 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:44,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:44,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1870856206, now seen corresponding path program 117 times [2021-05-03 15:26:44,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:44,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560085189] [2021-05-03 15:26:44,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:45,077 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:45,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560085189] [2021-05-03 15:26:45,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614495120] [2021-05-03 15:26:45,077 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 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:45,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-05-03 15:26:45,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:45,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:45,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:45,490 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:45,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:45,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-05-03 15:26:45,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038523921] [2021-05-03 15:26:45,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-03 15:26:45,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:45,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-03 15:26:45,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=814, Unknown=0, NotChecked=0, Total=992 [2021-05-03 15:26:45,491 INFO L87 Difference]: Start difference. First operand 26468 states and 68855 transitions. Second operand has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:47,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:47,892 INFO L93 Difference]: Finished difference Result 32096 states and 80790 transitions. [2021-05-03 15:26:47,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-05-03 15:26:47,893 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:47,940 INFO L225 Difference]: With dead ends: 32096 [2021-05-03 15:26:47,940 INFO L226 Difference]: Without dead ends: 32046 [2021-05-03 15:26:47,942 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4740 ImplicationChecksByTransitivity, 2215.1ms TimeCoverageRelationStatistics Valid=3036, Invalid=10074, Unknown=0, NotChecked=0, Total=13110 [2021-05-03 15:26:47,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32046 states. [2021-05-03 15:26:48,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32046 to 24004. [2021-05-03 15:26:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24004 states, 24003 states have (on average 2.599633379160938) internal successors, (62399), 24003 states have internal predecessors, (62399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:48,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24004 states to 24004 states and 62399 transitions. [2021-05-03 15:26:48,352 INFO L78 Accepts]: Start accepts. Automaton has 24004 states and 62399 transitions. Word has length 40 [2021-05-03 15:26:48,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:48,352 INFO L480 AbstractCegarLoop]: Abstraction has 24004 states and 62399 transitions. [2021-05-03 15:26:48,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:48,352 INFO L276 IsEmpty]: Start isEmpty. Operand 24004 states and 62399 transitions. [2021-05-03 15:26:48,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:48,366 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:48,367 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:48,567 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3700,118 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:48,567 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:48,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:48,568 INFO L82 PathProgramCache]: Analyzing trace with hash -69717194, now seen corresponding path program 118 times [2021-05-03 15:26:48,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:48,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409583553] [2021-05-03 15:26:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 35 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:26:48,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409583553] [2021-05-03 15:26:48,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261839983] [2021-05-03 15:26:48,887 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 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:48,951 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:26:48,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:48,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:48,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:49,581 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2021-05-03 15:26:49,589 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:49,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:49,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-05-03 15:26:49,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000254310] [2021-05-03 15:26:49,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-03 15:26:49,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:49,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-03 15:26:49,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=869, Unknown=0, NotChecked=0, Total=1056 [2021-05-03 15:26:49,591 INFO L87 Difference]: Start difference. First operand 24004 states and 62399 transitions. Second operand has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 32 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:52,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:52,148 INFO L93 Difference]: Finished difference Result 28131 states and 70967 transitions. [2021-05-03 15:26:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-05-03 15:26:52,150 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 32 states have internal predecessors, (73), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:52,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:52,190 INFO L225 Difference]: With dead ends: 28131 [2021-05-03 15:26:52,190 INFO L226 Difference]: Without dead ends: 28131 [2021-05-03 15:26:52,192 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3698 ImplicationChecksByTransitivity, 2440.4ms TimeCoverageRelationStatistics Valid=2970, Invalid=9240, Unknown=0, NotChecked=0, Total=12210 [2021-05-03 15:26:52,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28131 states. [2021-05-03 15:26:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28131 to 21876. [2021-05-03 15:26:52,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21876 states, 21875 states have (on average 2.5954285714285716) internal successors, (56775), 21875 states have internal predecessors, (56775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:52,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21876 states to 21876 states and 56775 transitions. [2021-05-03 15:26:52,527 INFO L78 Accepts]: Start accepts. Automaton has 21876 states and 56775 transitions. Word has length 40 [2021-05-03 15:26:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:52,528 INFO L480 AbstractCegarLoop]: Abstraction has 21876 states and 56775 transitions. [2021-05-03 15:26:52,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.212121212121212) internal successors, (73), 32 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand 21876 states and 56775 transitions. [2021-05-03 15:26:52,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:52,540 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:52,540 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:52,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3701 [2021-05-03 15:26:52,740 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:52,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:52,741 INFO L82 PathProgramCache]: Analyzing trace with hash 715640178, now seen corresponding path program 119 times [2021-05-03 15:26:52,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:52,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571355157] [2021-05-03 15:26:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:52,940 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 46 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:26:52,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571355157] [2021-05-03 15:26:52,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772536417] [2021-05-03 15:26:52,941 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 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:52,973 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-05-03 15:26:52,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:52,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:52,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:53,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:53,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-05-03 15:26:53,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218761822] [2021-05-03 15:26:53,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-03 15:26:53,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:53,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-03 15:26:53,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=826, Unknown=0, NotChecked=0, Total=992 [2021-05-03 15:26:53,387 INFO L87 Difference]: Start difference. First operand 21876 states and 56775 transitions. Second operand has 32 states, 32 states have (on average 2.21875) internal successors, (71), 31 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:56,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:26:56,353 INFO L93 Difference]: Finished difference Result 25120 states and 63294 transitions. [2021-05-03 15:26:56,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-05-03 15:26:56,354 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.21875) internal successors, (71), 31 states have internal predecessors, (71), 0 states have call successors, (0), 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 40 [2021-05-03 15:26:56,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:26:56,393 INFO L225 Difference]: With dead ends: 25120 [2021-05-03 15:26:56,393 INFO L226 Difference]: Without dead ends: 24982 [2021-05-03 15:26:56,395 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5780 ImplicationChecksByTransitivity, 2788.2ms TimeCoverageRelationStatistics Valid=3320, Invalid=12682, Unknown=0, NotChecked=0, Total=16002 [2021-05-03 15:26:56,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24982 states. [2021-05-03 15:26:56,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24982 to 21296. [2021-05-03 15:26:56,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21296 states, 21295 states have (on average 2.5844094857947875) internal successors, (55035), 21295 states have internal predecessors, (55035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:56,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21296 states to 21296 states and 55035 transitions. [2021-05-03 15:26:56,826 INFO L78 Accepts]: Start accepts. Automaton has 21296 states and 55035 transitions. Word has length 40 [2021-05-03 15:26:56,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:26:56,826 INFO L480 AbstractCegarLoop]: Abstraction has 21296 states and 55035 transitions. [2021-05-03 15:26:56,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.21875) internal successors, (71), 31 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:26:56,826 INFO L276 IsEmpty]: Start isEmpty. Operand 21296 states and 55035 transitions. [2021-05-03 15:26:56,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:26:56,838 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:26:56,838 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:26:57,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3702,120 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:57,038 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:26:57,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:26:57,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1418514486, now seen corresponding path program 120 times [2021-05-03 15:26:57,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:26:57,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15972941] [2021-05-03 15:26:57,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:26:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:26:57,219 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 50 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:26:57,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15972941] [2021-05-03 15:26:57,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155111435] [2021-05-03 15:26:57,220 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 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:26:57,252 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-05-03 15:26:57,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:26:57,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:26:57,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:26:57,630 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:26:57,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:26:57,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-05-03 15:26:57,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903403943] [2021-05-03 15:26:57,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-03 15:26:57,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:26:57,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-03 15:26:57,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992 [2021-05-03 15:26:57,631 INFO L87 Difference]: Start difference. First operand 21296 states and 55035 transitions. Second operand has 32 states, 32 states have (on average 2.28125) internal successors, (73), 31 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:00,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:00,512 INFO L93 Difference]: Finished difference Result 26874 states and 67135 transitions. [2021-05-03 15:27:00,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-05-03 15:27:00,513 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.28125) internal successors, (73), 31 states have internal predecessors, (73), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:00,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:00,552 INFO L225 Difference]: With dead ends: 26874 [2021-05-03 15:27:00,552 INFO L226 Difference]: Without dead ends: 26874 [2021-05-03 15:27:00,553 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4431 ImplicationChecksByTransitivity, 2427.7ms TimeCoverageRelationStatistics Valid=3338, Invalid=10234, Unknown=0, NotChecked=0, Total=13572 [2021-05-03 15:27:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26874 states. [2021-05-03 15:27:00,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26874 to 19476. [2021-05-03 15:27:00,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19476 states, 19475 states have (on average 2.5761232349165595) internal successors, (50170), 19475 states have internal predecessors, (50170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19476 states to 19476 states and 50170 transitions. [2021-05-03 15:27:00,876 INFO L78 Accepts]: Start accepts. Automaton has 19476 states and 50170 transitions. Word has length 40 [2021-05-03 15:27:00,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:00,876 INFO L480 AbstractCegarLoop]: Abstraction has 19476 states and 50170 transitions. [2021-05-03 15:27:00,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.28125) internal successors, (73), 31 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 19476 states and 50170 transitions. [2021-05-03 15:27:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:00,887 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:00,887 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:01,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3703,121 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:01,088 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:01,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:01,088 INFO L82 PathProgramCache]: Analyzing trace with hash 699779442, now seen corresponding path program 121 times [2021-05-03 15:27:01,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:01,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948713475] [2021-05-03 15:27:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:01,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948713475] [2021-05-03 15:27:01,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310566414] [2021-05-03 15:27:01,225 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 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:01,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:01,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:01,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:01,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-05-03 15:27:01,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600581388] [2021-05-03 15:27:01,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-03 15:27:01,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:01,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-03 15:27:01,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=775, Unknown=0, NotChecked=0, Total=930 [2021-05-03 15:27:01,631 INFO L87 Difference]: Start difference. First operand 19476 states and 50170 transitions. Second operand has 31 states, 31 states have (on average 2.2903225806451615) internal successors, (71), 30 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:04,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:04,328 INFO L93 Difference]: Finished difference Result 22442 states and 56490 transitions. [2021-05-03 15:27:04,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-05-03 15:27:04,329 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.2903225806451615) internal successors, (71), 30 states have internal predecessors, (71), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:04,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:04,363 INFO L225 Difference]: With dead ends: 22442 [2021-05-03 15:27:04,363 INFO L226 Difference]: Without dead ends: 22343 [2021-05-03 15:27:04,364 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5030 ImplicationChecksByTransitivity, 2437.5ms TimeCoverageRelationStatistics Valid=2802, Invalid=10770, Unknown=0, NotChecked=0, Total=13572 [2021-05-03 15:27:04,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22343 states. [2021-05-03 15:27:04,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22343 to 19294. [2021-05-03 15:27:04,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19294 states, 19293 states have (on average 2.5669932099725288) internal successors, (49525), 19293 states have internal predecessors, (49525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19294 states to 19294 states and 49525 transitions. [2021-05-03 15:27:04,735 INFO L78 Accepts]: Start accepts. Automaton has 19294 states and 49525 transitions. Word has length 40 [2021-05-03 15:27:04,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:04,735 INFO L480 AbstractCegarLoop]: Abstraction has 19294 states and 49525 transitions. [2021-05-03 15:27:04,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.2903225806451615) internal successors, (71), 30 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:04,735 INFO L276 IsEmpty]: Start isEmpty. Operand 19294 states and 49525 transitions. [2021-05-03 15:27:04,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:04,747 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:04,747 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:04,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3704 [2021-05-03 15:27:04,947 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:04,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:04,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1681609418, now seen corresponding path program 122 times [2021-05-03 15:27:04,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:04,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964867768] [2021-05-03 15:27:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:05,082 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:05,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964867768] [2021-05-03 15:27:05,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100600829] [2021-05-03 15:27:05,083 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 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:05,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:27:05,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:05,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:05,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:05,480 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:05,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:05,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-05-03 15:27:05,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966611276] [2021-05-03 15:27:05,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-03 15:27:05,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:05,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-03 15:27:05,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=775, Unknown=0, NotChecked=0, Total=930 [2021-05-03 15:27:05,482 INFO L87 Difference]: Start difference. First operand 19294 states and 49525 transitions. Second operand has 31 states, 31 states have (on average 2.3548387096774195) internal successors, (73), 30 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:08,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:08,703 INFO L93 Difference]: Finished difference Result 25902 states and 64230 transitions. [2021-05-03 15:27:08,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-05-03 15:27:08,703 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.3548387096774195) internal successors, (73), 30 states have internal predecessors, (73), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:08,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:08,743 INFO L225 Difference]: With dead ends: 25902 [2021-05-03 15:27:08,743 INFO L226 Difference]: Without dead ends: 25902 [2021-05-03 15:27:08,745 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5410 ImplicationChecksByTransitivity, 2705.2ms TimeCoverageRelationStatistics Valid=3958, Invalid=11542, Unknown=0, NotChecked=0, Total=15500 [2021-05-03 15:27:08,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25902 states. [2021-05-03 15:27:09,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25902 to 17898. [2021-05-03 15:27:09,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17898 states, 17897 states have (on average 2.5554003464267754) internal successors, (45734), 17897 states have internal predecessors, (45734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17898 states to 17898 states and 45734 transitions. [2021-05-03 15:27:09,071 INFO L78 Accepts]: Start accepts. Automaton has 17898 states and 45734 transitions. Word has length 40 [2021-05-03 15:27:09,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:09,072 INFO L480 AbstractCegarLoop]: Abstraction has 17898 states and 45734 transitions. [2021-05-03 15:27:09,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.3548387096774195) internal successors, (73), 30 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand 17898 states and 45734 transitions. [2021-05-03 15:27:09,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:09,084 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:09,084 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:09,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3705,123 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:09,289 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:09,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:09,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1276298610, now seen corresponding path program 123 times [2021-05-03 15:27:09,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:09,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27262725] [2021-05-03 15:27:09,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:09,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27262725] [2021-05-03 15:27:09,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364909318] [2021-05-03 15:27:09,435 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 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:09,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-05-03 15:27:09,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:09,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:09,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:09,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:09,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-05-03 15:27:09,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126253934] [2021-05-03 15:27:09,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-03 15:27:09,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:09,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-03 15:27:09,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2021-05-03 15:27:09,835 INFO L87 Difference]: Start difference. First operand 17898 states and 45734 transitions. Second operand has 30 states, 30 states have (on average 2.3666666666666667) internal successors, (71), 29 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:12,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:12,272 INFO L93 Difference]: Finished difference Result 20487 states and 51579 transitions. [2021-05-03 15:27:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-05-03 15:27:12,274 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.3666666666666667) internal successors, (71), 29 states have internal predecessors, (71), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:12,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:12,300 INFO L225 Difference]: With dead ends: 20487 [2021-05-03 15:27:12,301 INFO L226 Difference]: Without dead ends: 20421 [2021-05-03 15:27:12,302 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4431 ImplicationChecksByTransitivity, 2191.7ms TimeCoverageRelationStatistics Valid=2466, Invalid=9306, Unknown=0, NotChecked=0, Total=11772 [2021-05-03 15:27:12,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20421 states. [2021-05-03 15:27:12,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20421 to 18251. [2021-05-03 15:27:12,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18251 states, 18250 states have (on average 2.5564383561643838) internal successors, (46655), 18250 states have internal predecessors, (46655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:12,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18251 states to 18251 states and 46655 transitions. [2021-05-03 15:27:12,612 INFO L78 Accepts]: Start accepts. Automaton has 18251 states and 46655 transitions. Word has length 40 [2021-05-03 15:27:12,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:12,612 INFO L480 AbstractCegarLoop]: Abstraction has 18251 states and 46655 transitions. [2021-05-03 15:27:12,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.3666666666666667) internal successors, (71), 29 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:12,612 INFO L276 IsEmpty]: Start isEmpty. Operand 18251 states and 46655 transitions. [2021-05-03 15:27:12,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:12,623 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:12,623 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:12,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3706 [2021-05-03 15:27:12,825 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:12,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:12,825 INFO L82 PathProgramCache]: Analyzing trace with hash 424659510, now seen corresponding path program 124 times [2021-05-03 15:27:12,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:12,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220829146] [2021-05-03 15:27:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:12,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220829146] [2021-05-03 15:27:12,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377833168] [2021-05-03 15:27:12,948 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 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:12,970 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:27:12,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:12,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:12,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:13,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:13,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-05-03 15:27:13,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998351972] [2021-05-03 15:27:13,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-03 15:27:13,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:13,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-03 15:27:13,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2021-05-03 15:27:13,350 INFO L87 Difference]: Start difference. First operand 18251 states and 46655 transitions. Second operand has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:16,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:16,955 INFO L93 Difference]: Finished difference Result 25865 states and 63837 transitions. [2021-05-03 15:27:16,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-05-03 15:27:16,956 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:16,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:16,995 INFO L225 Difference]: With dead ends: 25865 [2021-05-03 15:27:16,995 INFO L226 Difference]: Without dead ends: 25865 [2021-05-03 15:27:16,997 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6848 ImplicationChecksByTransitivity, 3053.8ms TimeCoverageRelationStatistics Valid=4818, Invalid=13272, Unknown=0, NotChecked=0, Total=18090 [2021-05-03 15:27:17,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25865 states. [2021-05-03 15:27:17,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25865 to 17253. [2021-05-03 15:27:17,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17253 states, 17252 states have (on average 2.541386505912358) internal successors, (43844), 17252 states have internal predecessors, (43844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:17,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17253 states to 17253 states and 43844 transitions. [2021-05-03 15:27:17,346 INFO L78 Accepts]: Start accepts. Automaton has 17253 states and 43844 transitions. Word has length 40 [2021-05-03 15:27:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:17,347 INFO L480 AbstractCegarLoop]: Abstraction has 17253 states and 43844 transitions. [2021-05-03 15:27:17,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 17253 states and 43844 transitions. [2021-05-03 15:27:17,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:17,358 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:17,358 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:17,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3707 [2021-05-03 15:27:17,559 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:17,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:17,559 INFO L82 PathProgramCache]: Analyzing trace with hash 427737458, now seen corresponding path program 125 times [2021-05-03 15:27:17,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:17,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970922896] [2021-05-03 15:27:17,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:17,682 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:17,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970922896] [2021-05-03 15:27:17,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951247427] [2021-05-03 15:27:17,682 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 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:17,708 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-05-03 15:27:17,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:17,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:17,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:18,190 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 29 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:18,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:18,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-05-03 15:27:18,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753734164] [2021-05-03 15:27:18,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-03 15:27:18,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:18,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-03 15:27:18,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2021-05-03 15:27:18,191 INFO L87 Difference]: Start difference. First operand 17253 states and 43844 transitions. Second operand has 29 states, 29 states have (on average 2.4482758620689653) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:20,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:20,474 INFO L93 Difference]: Finished difference Result 19251 states and 48390 transitions. [2021-05-03 15:27:20,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-05-03 15:27:20,475 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.4482758620689653) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:20,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:20,500 INFO L225 Difference]: With dead ends: 19251 [2021-05-03 15:27:20,500 INFO L226 Difference]: Without dead ends: 19212 [2021-05-03 15:27:20,501 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3960 ImplicationChecksByTransitivity, 2056.5ms TimeCoverageRelationStatistics Valid=2263, Invalid=8243, Unknown=0, NotChecked=0, Total=10506 [2021-05-03 15:27:20,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19212 states. [2021-05-03 15:27:20,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19212 to 17619. [2021-05-03 15:27:20,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17619 states, 17618 states have (on average 2.546032466795323) internal successors, (44856), 17618 states have internal predecessors, (44856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:20,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17619 states to 17619 states and 44856 transitions. [2021-05-03 15:27:20,784 INFO L78 Accepts]: Start accepts. Automaton has 17619 states and 44856 transitions. Word has length 40 [2021-05-03 15:27:20,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:20,784 INFO L480 AbstractCegarLoop]: Abstraction has 17619 states and 44856 transitions. [2021-05-03 15:27:20,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.4482758620689653) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:20,784 INFO L276 IsEmpty]: Start isEmpty. Operand 17619 states and 44856 transitions. [2021-05-03 15:27:20,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:20,794 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:20,794 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:20,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3708 [2021-05-03 15:27:20,995 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:20,995 INFO L82 PathProgramCache]: Analyzing trace with hash -922867914, now seen corresponding path program 126 times [2021-05-03 15:27:20,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:20,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789143794] [2021-05-03 15:27:20,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 31 proven. 53 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:21,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789143794] [2021-05-03 15:27:21,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091155991] [2021-05-03 15:27:21,121 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 127 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 127 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:21,149 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-05-03 15:27:21,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:21,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:21,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:21,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:21,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-05-03 15:27:21,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779228704] [2021-05-03 15:27:21,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-03 15:27:21,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:21,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-03 15:27:21,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2021-05-03 15:27:21,529 INFO L87 Difference]: Start difference. First operand 17619 states and 44856 transitions. Second operand has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 28 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:25,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:25,258 INFO L93 Difference]: Finished difference Result 28254 states and 69498 transitions. [2021-05-03 15:27:25,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2021-05-03 15:27:25,259 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 28 states have internal predecessors, (73), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:25,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:25,301 INFO L225 Difference]: With dead ends: 28254 [2021-05-03 15:27:25,302 INFO L226 Difference]: Without dead ends: 28254 [2021-05-03 15:27:25,304 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7942 ImplicationChecksByTransitivity, 3233.3ms TimeCoverageRelationStatistics Valid=5440, Invalid=14300, Unknown=0, NotChecked=0, Total=19740 [2021-05-03 15:27:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28254 states. [2021-05-03 15:27:25,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28254 to 22012. [2021-05-03 15:27:25,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22012 states, 22011 states have (on average 2.520875925673527) internal successors, (55487), 22011 states have internal predecessors, (55487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:25,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22012 states to 22012 states and 55487 transitions. [2021-05-03 15:27:25,762 INFO L78 Accepts]: Start accepts. Automaton has 22012 states and 55487 transitions. Word has length 40 [2021-05-03 15:27:25,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:25,762 INFO L480 AbstractCegarLoop]: Abstraction has 22012 states and 55487 transitions. [2021-05-03 15:27:25,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.5172413793103448) internal successors, (73), 28 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:25,763 INFO L276 IsEmpty]: Start isEmpty. Operand 22012 states and 55487 transitions. [2021-05-03 15:27:25,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:25,777 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:25,777 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:25,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 127 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3709 [2021-05-03 15:27:25,977 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:25,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:25,978 INFO L82 PathProgramCache]: Analyzing trace with hash 163167602, now seen corresponding path program 127 times [2021-05-03 15:27:25,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:25,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216791756] [2021-05-03 15:27:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 46 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:26,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216791756] [2021-05-03 15:27:26,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861901779] [2021-05-03 15:27:26,085 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 128 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 128 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:26,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:26,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 34 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:26,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:26,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-05-03 15:27:26,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178149110] [2021-05-03 15:27:26,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 15:27:26,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:26,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 15:27:26,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2021-05-03 15:27:26,511 INFO L87 Difference]: Start difference. First operand 22012 states and 55487 transitions. Second operand has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 27 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:28,854 INFO L93 Difference]: Finished difference Result 23071 states and 57669 transitions. [2021-05-03 15:27:28,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-05-03 15:27:28,855 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 27 states have internal predecessors, (71), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:28,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:28,886 INFO L225 Difference]: With dead ends: 23071 [2021-05-03 15:27:28,886 INFO L226 Difference]: Without dead ends: 23053 [2021-05-03 15:27:28,887 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3632 ImplicationChecksByTransitivity, 2026.8ms TimeCoverageRelationStatistics Valid=2150, Invalid=7552, Unknown=0, NotChecked=0, Total=9702 [2021-05-03 15:27:28,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23053 states. [2021-05-03 15:27:29,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23053 to 22214. [2021-05-03 15:27:29,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22214 states, 22213 states have (on average 2.5227119254490615) internal successors, (56037), 22213 states have internal predecessors, (56037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:29,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22214 states to 22214 states and 56037 transitions. [2021-05-03 15:27:29,202 INFO L78 Accepts]: Start accepts. Automaton has 22214 states and 56037 transitions. Word has length 40 [2021-05-03 15:27:29,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:29,202 INFO L480 AbstractCegarLoop]: Abstraction has 22214 states and 56037 transitions. [2021-05-03 15:27:29,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 27 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:29,202 INFO L276 IsEmpty]: Start isEmpty. Operand 22214 states and 56037 transitions. [2021-05-03 15:27:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:29,214 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:29,214 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:29,414 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 128 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3710 [2021-05-03 15:27:29,415 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:29,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:29,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1520419894, now seen corresponding path program 128 times [2021-05-03 15:27:29,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:29,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669395639] [2021-05-03 15:27:29,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:29,553 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:29,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669395639] [2021-05-03 15:27:29,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229756268] [2021-05-03 15:27:29,554 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 129 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 129 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:29,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:27:29,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:29,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:29,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:29,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:29,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-05-03 15:27:29,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644519704] [2021-05-03 15:27:29,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 15:27:29,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:29,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 15:27:29,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2021-05-03 15:27:29,972 INFO L87 Difference]: Start difference. First operand 22214 states and 56037 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) [2021-05-03 15:27:33,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:33,818 INFO L93 Difference]: Finished difference Result 36775 states and 91582 transitions. [2021-05-03 15:27:33,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2021-05-03 15:27:33,819 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 40 [2021-05-03 15:27:33,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:33,874 INFO L225 Difference]: With dead ends: 36775 [2021-05-03 15:27:33,874 INFO L226 Difference]: Without dead ends: 36775 [2021-05-03 15:27:33,875 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8274 ImplicationChecksByTransitivity, 3306.1ms TimeCoverageRelationStatistics Valid=5518, Invalid=14504, Unknown=0, NotChecked=0, Total=20022 [2021-05-03 15:27:33,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36775 states. [2021-05-03 15:27:34,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36775 to 32904. [2021-05-03 15:27:34,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32904 states, 32903 states have (on average 2.529982068504392) internal successors, (83244), 32903 states have internal predecessors, (83244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:34,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32904 states to 32904 states and 83244 transitions. [2021-05-03 15:27:34,434 INFO L78 Accepts]: Start accepts. Automaton has 32904 states and 83244 transitions. Word has length 40 [2021-05-03 15:27:34,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:34,434 INFO L480 AbstractCegarLoop]: Abstraction has 32904 states and 83244 transitions. [2021-05-03 15:27:34,434 INFO L481 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) [2021-05-03 15:27:34,434 INFO L276 IsEmpty]: Start isEmpty. Operand 32904 states and 83244 transitions. [2021-05-03 15:27:34,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:34,450 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:34,450 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:34,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3711 [2021-05-03 15:27:34,651 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:34,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:34,651 INFO L82 PathProgramCache]: Analyzing trace with hash -425600740, now seen corresponding path program 129 times [2021-05-03 15:27:34,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:34,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432735088] [2021-05-03 15:27:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:34,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432735088] [2021-05-03 15:27:34,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129899491] [2021-05-03 15:27:34,751 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 130 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 130 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:34,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-05-03 15:27:34,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:34,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:34,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:35,158 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:35,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:35,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17] total 26 [2021-05-03 15:27:35,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689285610] [2021-05-03 15:27:35,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-05-03 15:27:35,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:35,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-05-03 15:27:35,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2021-05-03 15:27:35,160 INFO L87 Difference]: Start difference. First operand 32904 states and 83244 transitions. Second operand has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:37,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:37,469 INFO L93 Difference]: Finished difference Result 35887 states and 89458 transitions. [2021-05-03 15:27:37,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-05-03 15:27:37,470 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:37,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:37,525 INFO L225 Difference]: With dead ends: 35887 [2021-05-03 15:27:37,525 INFO L226 Difference]: Without dead ends: 35883 [2021-05-03 15:27:37,526 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3426 ImplicationChecksByTransitivity, 1978.9ms TimeCoverageRelationStatistics Valid=2678, Invalid=7024, Unknown=0, NotChecked=0, Total=9702 [2021-05-03 15:27:37,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35883 states. [2021-05-03 15:27:37,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35883 to 32269. [2021-05-03 15:27:38,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32269 states, 32268 states have (on average 2.526465848518656) internal successors, (81524), 32268 states have internal predecessors, (81524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:38,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32269 states to 32269 states and 81524 transitions. [2021-05-03 15:27:38,095 INFO L78 Accepts]: Start accepts. Automaton has 32269 states and 81524 transitions. Word has length 40 [2021-05-03 15:27:38,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:38,096 INFO L480 AbstractCegarLoop]: Abstraction has 32269 states and 81524 transitions. [2021-05-03 15:27:38,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 26 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:38,096 INFO L276 IsEmpty]: Start isEmpty. Operand 32269 states and 81524 transitions. [2021-05-03 15:27:38,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:38,112 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:38,112 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:38,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3712,130 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:38,313 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:38,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:38,313 INFO L82 PathProgramCache]: Analyzing trace with hash -931947006, now seen corresponding path program 130 times [2021-05-03 15:27:38,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:38,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972991261] [2021-05-03 15:27:38,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 37 proven. 47 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:38,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972991261] [2021-05-03 15:27:38,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338054220] [2021-05-03 15:27:38,425 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 131 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 131 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:38,448 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:27:38,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:38,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:38,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:38,841 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:38,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:38,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-05-03 15:27:38,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240458583] [2021-05-03 15:27:38,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-03 15:27:38,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:38,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-03 15:27:38,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2021-05-03 15:27:38,842 INFO L87 Difference]: Start difference. First operand 32269 states and 81524 transitions. Second operand has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:41,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:41,214 INFO L93 Difference]: Finished difference Result 36401 states and 90806 transitions. [2021-05-03 15:27:41,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-05-03 15:27:41,215 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:41,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:41,269 INFO L225 Difference]: With dead ends: 36401 [2021-05-03 15:27:41,269 INFO L226 Difference]: Without dead ends: 36389 [2021-05-03 15:27:41,270 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3240 ImplicationChecksByTransitivity, 2026.1ms TimeCoverageRelationStatistics Valid=2417, Invalid=6895, Unknown=0, NotChecked=0, Total=9312 [2021-05-03 15:27:41,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36389 states. [2021-05-03 15:27:41,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36389 to 31831. [2021-05-03 15:27:41,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31831 states, 31830 states have (on average 2.527615457115928) internal successors, (80454), 31830 states have internal predecessors, (80454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:41,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31831 states to 31831 states and 80454 transitions. [2021-05-03 15:27:41,818 INFO L78 Accepts]: Start accepts. Automaton has 31831 states and 80454 transitions. Word has length 40 [2021-05-03 15:27:41,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:41,818 INFO L480 AbstractCegarLoop]: Abstraction has 31831 states and 80454 transitions. [2021-05-03 15:27:41,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.5) internal successors, (70), 27 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:41,818 INFO L276 IsEmpty]: Start isEmpty. Operand 31831 states and 80454 transitions. [2021-05-03 15:27:41,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:41,834 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:41,834 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:42,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3713,131 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:42,034 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:42,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:42,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1159168386, now seen corresponding path program 131 times [2021-05-03 15:27:42,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:42,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848033819] [2021-05-03 15:27:42,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 30 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:42,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848033819] [2021-05-03 15:27:42,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404264355] [2021-05-03 15:27:42,160 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 132 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 132 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:42,185 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-05-03 15:27:42,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:42,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:42,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 27 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:42,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:42,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 28 [2021-05-03 15:27:42,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426452923] [2021-05-03 15:27:42,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-03 15:27:42,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:42,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-03 15:27:42,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=674, Unknown=0, NotChecked=0, Total=812 [2021-05-03 15:27:42,598 INFO L87 Difference]: Start difference. First operand 31831 states and 80454 transitions. Second operand has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:44,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:44,941 INFO L93 Difference]: Finished difference Result 37561 states and 93690 transitions. [2021-05-03 15:27:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-05-03 15:27:44,942 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:44,999 INFO L225 Difference]: With dead ends: 37561 [2021-05-03 15:27:44,999 INFO L226 Difference]: Without dead ends: 37541 [2021-05-03 15:27:45,001 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3190 ImplicationChecksByTransitivity, 2001.3ms TimeCoverageRelationStatistics Valid=2289, Invalid=7023, Unknown=0, NotChecked=0, Total=9312 [2021-05-03 15:27:45,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37541 states. [2021-05-03 15:27:45,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37541 to 32042. [2021-05-03 15:27:45,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32042 states, 32041 states have (on average 2.529758746605911) internal successors, (81056), 32041 states have internal predecessors, (81056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:45,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32042 states to 32042 states and 81056 transitions. [2021-05-03 15:27:45,658 INFO L78 Accepts]: Start accepts. Automaton has 32042 states and 81056 transitions. Word has length 40 [2021-05-03 15:27:45,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:45,659 INFO L480 AbstractCegarLoop]: Abstraction has 32042 states and 81056 transitions. [2021-05-03 15:27:45,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.413793103448276) internal successors, (70), 28 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:45,659 INFO L276 IsEmpty]: Start isEmpty. Operand 32042 states and 81056 transitions. [2021-05-03 15:27:45,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:45,675 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:45,675 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:45,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3714,132 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:45,875 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:45,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:45,876 INFO L82 PathProgramCache]: Analyzing trace with hash -475582470, now seen corresponding path program 132 times [2021-05-03 15:27:45,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:45,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140991830] [2021-05-03 15:27:45,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:46,011 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 27 proven. 57 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:46,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140991830] [2021-05-03 15:27:46,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427043645] [2021-05-03 15:27:46,011 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 133 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 133 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:46,037 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-05-03 15:27:46,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:46,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:46,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 25 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:46,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:46,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 29 [2021-05-03 15:27:46,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940601348] [2021-05-03 15:27:46,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-03 15:27:46,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:46,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-03 15:27:46,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2021-05-03 15:27:46,460 INFO L87 Difference]: Start difference. First operand 32042 states and 81056 transitions. Second operand has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:48,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:48,893 INFO L93 Difference]: Finished difference Result 39838 states and 99403 transitions. [2021-05-03 15:27:48,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-05-03 15:27:48,895 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:48,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:48,957 INFO L225 Difference]: With dead ends: 39838 [2021-05-03 15:27:48,957 INFO L226 Difference]: Without dead ends: 39810 [2021-05-03 15:27:48,958 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3289 ImplicationChecksByTransitivity, 2076.3ms TimeCoverageRelationStatistics Valid=2297, Invalid=7405, Unknown=0, NotChecked=0, Total=9702 [2021-05-03 15:27:48,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39810 states. [2021-05-03 15:27:49,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39810 to 33837. [2021-05-03 15:27:49,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33837 states, 33836 states have (on average 2.535997162785199) internal successors, (85808), 33836 states have internal predecessors, (85808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:49,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33837 states to 33837 states and 85808 transitions. [2021-05-03 15:27:49,572 INFO L78 Accepts]: Start accepts. Automaton has 33837 states and 85808 transitions. Word has length 40 [2021-05-03 15:27:49,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:49,572 INFO L480 AbstractCegarLoop]: Abstraction has 33837 states and 85808 transitions. [2021-05-03 15:27:49,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:49,572 INFO L276 IsEmpty]: Start isEmpty. Operand 33837 states and 85808 transitions. [2021-05-03 15:27:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:49,588 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:49,588 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:49,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 133 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3715 [2021-05-03 15:27:49,789 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:49,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:49,789 INFO L82 PathProgramCache]: Analyzing trace with hash -679513482, now seen corresponding path program 133 times [2021-05-03 15:27:49,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:49,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109286511] [2021-05-03 15:27:49,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 28 proven. 56 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:49,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109286511] [2021-05-03 15:27:49,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145272940] [2021-05-03 15:27:49,950 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 134 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 134 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:49,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:49,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 27 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:50,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:50,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 30 [2021-05-03 15:27:50,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830724854] [2021-05-03 15:27:50,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-03 15:27:50,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:50,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-03 15:27:50,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2021-05-03 15:27:50,410 INFO L87 Difference]: Start difference. First operand 33837 states and 85808 transitions. Second operand has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:52,117 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2021-05-03 15:27:53,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:53,092 INFO L93 Difference]: Finished difference Result 43908 states and 109576 transitions. [2021-05-03 15:27:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-05-03 15:27:53,097 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:53,172 INFO L225 Difference]: With dead ends: 43908 [2021-05-03 15:27:53,172 INFO L226 Difference]: Without dead ends: 43872 [2021-05-03 15:27:53,173 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3564 ImplicationChecksByTransitivity, 2354.8ms TimeCoverageRelationStatistics Valid=2443, Invalid=8063, Unknown=0, NotChecked=0, Total=10506 [2021-05-03 15:27:53,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43872 states. [2021-05-03 15:27:53,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43872 to 40323. [2021-05-03 15:27:53,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40323 states, 40322 states have (on average 2.537894945687218) internal successors, (102333), 40322 states have internal predecessors, (102333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:53,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40323 states to 40323 states and 102333 transitions. [2021-05-03 15:27:53,898 INFO L78 Accepts]: Start accepts. Automaton has 40323 states and 102333 transitions. Word has length 40 [2021-05-03 15:27:53,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:53,898 INFO L480 AbstractCegarLoop]: Abstraction has 40323 states and 102333 transitions. [2021-05-03 15:27:53,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:53,898 INFO L276 IsEmpty]: Start isEmpty. Operand 40323 states and 102333 transitions. [2021-05-03 15:27:53,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:53,917 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:53,917 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:54,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 134 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3716 [2021-05-03 15:27:54,118 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:54,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:54,118 INFO L82 PathProgramCache]: Analyzing trace with hash 911279602, now seen corresponding path program 134 times [2021-05-03 15:27:54,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:54,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982497059] [2021-05-03 15:27:54,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:54,287 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:27:54,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982497059] [2021-05-03 15:27:54,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591754668] [2021-05-03 15:27:54,288 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 135 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 135 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:54,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:27:54,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:54,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:54,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 33 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:54,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:54,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2021-05-03 15:27:54,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473211363] [2021-05-03 15:27:54,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-03 15:27:54,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:54,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-03 15:27:54,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2021-05-03 15:27:54,766 INFO L87 Difference]: Start difference. First operand 40323 states and 102333 transitions. Second operand has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:57,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:27:57,735 INFO L93 Difference]: Finished difference Result 50681 states and 126374 transitions. [2021-05-03 15:27:57,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-05-03 15:27:57,736 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:27:57,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:27:57,821 INFO L225 Difference]: With dead ends: 50681 [2021-05-03 15:27:57,821 INFO L226 Difference]: Without dead ends: 50637 [2021-05-03 15:27:57,822 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4059 ImplicationChecksByTransitivity, 2574.2ms TimeCoverageRelationStatistics Valid=2727, Invalid=9045, Unknown=0, NotChecked=0, Total=11772 [2021-05-03 15:27:57,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50637 states. [2021-05-03 15:27:58,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50637 to 46817. [2021-05-03 15:27:58,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46817 states, 46816 states have (on average 2.533685064935065) internal successors, (118617), 46816 states have internal predecessors, (118617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:58,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46817 states to 46817 states and 118617 transitions. [2021-05-03 15:27:58,792 INFO L78 Accepts]: Start accepts. Automaton has 46817 states and 118617 transitions. Word has length 40 [2021-05-03 15:27:58,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:27:58,792 INFO L480 AbstractCegarLoop]: Abstraction has 46817 states and 118617 transitions. [2021-05-03 15:27:58,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.1875) internal successors, (70), 31 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:27:58,792 INFO L276 IsEmpty]: Start isEmpty. Operand 46817 states and 118617 transitions. [2021-05-03 15:27:58,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-03 15:27:58,816 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:27:58,816 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:27:59,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3717,135 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:59,017 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:27:59,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:27:59,017 INFO L82 PathProgramCache]: Analyzing trace with hash 655075950, now seen corresponding path program 135 times [2021-05-03 15:27:59,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:27:59,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539738693] [2021-05-03 15:27:59,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:27:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:27:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:59,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539738693] [2021-05-03 15:27:59,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978580533] [2021-05-03 15:27:59,208 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 136 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 136 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:27:59,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-05-03 15:27:59,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:27:59,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-03 15:27:59,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:27:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:27:59,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:27:59,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-05-03 15:27:59,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726790723] [2021-05-03 15:27:59,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-03 15:27:59,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:27:59,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-03 15:27:59,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=862, Unknown=0, NotChecked=0, Total=1056 [2021-05-03 15:27:59,705 INFO L87 Difference]: Start difference. First operand 46817 states and 118617 transitions. Second operand has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 32 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:28:02,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:28:02,934 INFO L93 Difference]: Finished difference Result 50538 states and 126417 transitions. [2021-05-03 15:28:02,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-05-03 15:28:02,936 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 32 states have internal predecessors, (70), 0 states have call successors, (0), 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 40 [2021-05-03 15:28:02,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:28:03,014 INFO L225 Difference]: With dead ends: 50538 [2021-05-03 15:28:03,014 INFO L226 Difference]: Without dead ends: 50486 [2021-05-03 15:28:03,015 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4831 ImplicationChecksByTransitivity, 2723.2ms TimeCoverageRelationStatistics Valid=3147, Invalid=10425, Unknown=0, NotChecked=0, Total=13572 [2021-05-03 15:28:03,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50486 states. [2021-05-03 15:28:03,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50486 to 46981. [2021-05-03 15:28:03,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46981 states, 46980 states have (on average 2.5367177522349937) internal successors, (119175), 46980 states have internal predecessors, (119175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:28:03,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46981 states to 46981 states and 119175 transitions. [2021-05-03 15:28:03,846 INFO L78 Accepts]: Start accepts. Automaton has 46981 states and 119175 transitions. Word has length 40 [2021-05-03 15:28:03,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:28:03,846 INFO L480 AbstractCegarLoop]: Abstraction has 46981 states and 119175 transitions. [2021-05-03 15:28:03,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.121212121212121) internal successors, (70), 32 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:28:03,847 INFO L276 IsEmpty]: Start isEmpty. Operand 46981 states and 119175 transitions. [2021-05-03 15:28:03,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-03 15:28:03,879 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:28:03,879 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:28:04,079 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 136 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3718 [2021-05-03 15:28:04,079 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:28:04,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:28:04,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1401589900, now seen corresponding path program 136 times [2021-05-03 15:28:04,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:28:04,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356042744] [2021-05-03 15:28:04,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:28:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:28:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:28:04,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356042744] [2021-05-03 15:28:04,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856595279] [2021-05-03 15:28:04,163 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 137 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 137 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:28:04,189 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:28:04,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:28:04,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-05-03 15:28:04,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:28:04,551 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-05-03 15:28:04,552 INFO L354 Elim1Store]: treesize reduction 72, result has 57.4 percent of original size [2021-05-03 15:28:04,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 151 treesize of output 153 [2021-05-03 15:28:04,556 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:04,636 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:28:04,638 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:28:04,638 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:151, output treesize:422 [2021-05-03 15:28:07,195 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-05-03 15:28:08,315 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 621 DAG size of output: 621 [2021-05-03 15:28:09,883 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-05-03 15:28:10,878 WARN L205 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2021-05-03 15:28:12,404 WARN L205 SmtUtils]: Spent 999.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2021-05-03 15:28:30,664 WARN L205 SmtUtils]: Spent 12.32 s on a formula simplification. DAG size of input: 1196 DAG size of output: 58 [2021-05-03 15:28:32,460 INFO L354 Elim1Store]: treesize reduction 153, result has 9.5 percent of original size [2021-05-03 15:28:32,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 223 treesize of output 86 [2021-05-03 15:28:32,463 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:32,739 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 111 [2021-05-03 15:28:32,740 INFO L628 ElimStorePlain]: treesize reduction 863, result has 37.2 percent of original size [2021-05-03 15:28:32,815 INFO L354 Elim1Store]: treesize reduction 151, result has 10.7 percent of original size [2021-05-03 15:28:32,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 52 [2021-05-03 15:28:32,818 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:32,906 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:28:33,081 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-05-03 15:28:33,081 INFO L354 Elim1Store]: treesize reduction 84, result has 50.3 percent of original size [2021-05-03 15:28:33,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 101 treesize of output 133 [2021-05-03 15:28:33,086 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:33,106 INFO L628 ElimStorePlain]: treesize reduction 334, result has 0.9 percent of original size [2021-05-03 15:28:33,106 INFO L518 ElimStorePlain]: Eliminatee v_prenex_133 vanished before elimination [2021-05-03 15:28:33,106 INFO L518 ElimStorePlain]: Eliminatee v_prenex_134 vanished before elimination [2021-05-03 15:28:33,106 INFO L518 ElimStorePlain]: Eliminatee v_prenex_135 vanished before elimination [2021-05-03 15:28:33,106 INFO L518 ElimStorePlain]: Eliminatee v_prenex_136 vanished before elimination [2021-05-03 15:28:33,107 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 7 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:28:33,107 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 14 variables, input treesize:1590, output treesize:3 [2021-05-03 15:28:33,117 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:28:33,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:28:33,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-05-03 15:28:33,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505018306] [2021-05-03 15:28:33,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:28:33,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:28:33,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:28:33,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-05-03 15:28:33,118 INFO L87 Difference]: Start difference. First operand 46981 states and 119175 transitions. Second operand has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:28:35,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:28:35,016 INFO L93 Difference]: Finished difference Result 50920 states and 128844 transitions. [2021-05-03 15:28:35,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-03 15:28:35,017 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 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 42 [2021-05-03 15:28:35,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:28:35,105 INFO L225 Difference]: With dead ends: 50920 [2021-05-03 15:28:35,106 INFO L226 Difference]: Without dead ends: 50913 [2021-05-03 15:28:35,106 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 19664.1ms TimeCoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-05-03 15:28:35,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50913 states. [2021-05-03 15:28:35,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50913 to 49976. [2021-05-03 15:28:35,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49976 states, 49975 states have (on average 2.542091045522761) internal successors, (127041), 49975 states have internal predecessors, (127041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:28:36,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49976 states to 49976 states and 127041 transitions. [2021-05-03 15:28:36,025 INFO L78 Accepts]: Start accepts. Automaton has 49976 states and 127041 transitions. Word has length 42 [2021-05-03 15:28:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:28:36,025 INFO L480 AbstractCegarLoop]: Abstraction has 49976 states and 127041 transitions. [2021-05-03 15:28:36,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.130434782608696) internal successors, (72), 23 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:28:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 49976 states and 127041 transitions. [2021-05-03 15:28:36,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-03 15:28:36,058 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:28:36,058 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:28:36,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3719 [2021-05-03 15:28:36,259 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:28:36,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:28:36,259 INFO L82 PathProgramCache]: Analyzing trace with hash 631984244, now seen corresponding path program 137 times [2021-05-03 15:28:36,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:28:36,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275479485] [2021-05-03 15:28:36,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:28:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:28:36,341 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:28:36,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275479485] [2021-05-03 15:28:36,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178186240] [2021-05-03 15:28:36,341 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 138 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 138 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:28:36,367 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-05-03 15:28:36,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:28:36,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 51 conjunts are in the unsatisfiable core [2021-05-03 15:28:36,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:28:37,248 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 79 [2021-05-03 15:28:37,249 INFO L354 Elim1Store]: treesize reduction 751, result has 24.2 percent of original size [2021-05-03 15:28:37,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 18 new quantified variables, introduced 66 case distinctions, treesize of input 187 treesize of output 314 [2021-05-03 15:28:37,253 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:37,341 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:28:37,342 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:28:37,342 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:187, output treesize:404 [2021-05-03 15:28:38,376 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-05-03 15:28:39,175 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-05-03 15:28:39,405 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:39,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 57 [2021-05-03 15:28:39,408 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:39,494 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:39,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-05-03 15:28:39,498 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:39,582 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:39,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:28:39,584 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:39,667 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:39,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 192 treesize of output 55 [2021-05-03 15:28:39,669 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:39,761 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:39,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 1 [2021-05-03 15:28:39,762 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:39,845 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:39,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-05-03 15:28:39,848 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:39,939 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:39,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-05-03 15:28:39,941 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,027 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:40,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:28:40,029 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,115 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:40,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:28:40,119 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,209 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:40,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-05-03 15:28:40,211 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,300 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:40,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:28:40,302 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,397 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:40,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 1 [2021-05-03 15:28:40,399 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,516 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:28:40,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 206 treesize of output 65 [2021-05-03 15:28:40,519 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,609 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:40,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-05-03 15:28:40,612 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,702 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:40,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 186 treesize of output 55 [2021-05-03 15:28:40,704 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,795 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:40,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 164 treesize of output 51 [2021-05-03 15:28:40,797 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,888 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:40,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-05-03 15:28:40,891 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:40,982 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:40,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-05-03 15:28:40,985 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:41,077 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:41,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:28:41,079 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:41,174 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:41,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-05-03 15:28:41,176 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:41,270 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:41,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 53 [2021-05-03 15:28:41,272 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:41,373 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:41,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 1 [2021-05-03 15:28:41,374 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:41,507 INFO L354 Elim1Store]: treesize reduction 113, result has 6.6 percent of original size [2021-05-03 15:28:41,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 68 [2021-05-03 15:28:41,509 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:41,607 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:41,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:28:41,609 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:41,708 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:41,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:28:41,710 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:41,827 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:41,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:28:41,829 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:41,927 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:41,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 51 [2021-05-03 15:28:41,929 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:42,028 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:42,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 57 [2021-05-03 15:28:42,030 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:42,148 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:42,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-05-03 15:28:42,151 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:42,258 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:42,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 62 [2021-05-03 15:28:42,260 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:42,365 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:42,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 55 [2021-05-03 15:28:42,367 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:42,476 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:42,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:28:42,479 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:42,586 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:42,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:28:42,589 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:42,704 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:42,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:28:42,706 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:42,811 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:42,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 230 treesize of output 65 [2021-05-03 15:28:42,814 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:42,920 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:42,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-05-03 15:28:42,923 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:43,031 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:43,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:28:43,034 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:43,141 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:43,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:28:43,144 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:43,265 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:43,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 62 [2021-05-03 15:28:43,268 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:43,379 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:43,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 62 [2021-05-03 15:28:43,381 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:43,495 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:43,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-05-03 15:28:43,498 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:43,610 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:43,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:28:43,612 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:43,721 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:43,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:28:43,724 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:43,835 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:43,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:28:43,837 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:43,950 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:43,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 57 [2021-05-03 15:28:43,952 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:44,069 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:44,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:28:44,071 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:44,184 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:44,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 60 [2021-05-03 15:28:44,187 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:44,302 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:44,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:28:44,304 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:44,421 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:44,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 228 treesize of output 65 [2021-05-03 15:28:44,424 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:44,543 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:44,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 207 treesize of output 58 [2021-05-03 15:28:44,545 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:44,663 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:44,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-05-03 15:28:44,666 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:44,785 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:44,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 54 [2021-05-03 15:28:44,787 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:44,909 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:44,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:28:44,911 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:45,033 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:45,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:28:45,035 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:45,156 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:45,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:28:45,158 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:45,392 INFO L244 Elim1Store]: Index analysis took 177 ms [2021-05-03 15:28:45,404 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:45,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-05-03 15:28:45,406 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:45,486 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:45,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:28:45,488 INFO L550 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:45,569 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:45,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 169 treesize of output 52 [2021-05-03 15:28:45,572 INFO L550 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:45,654 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:45,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 60 [2021-05-03 15:28:45,656 INFO L550 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:45,743 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:45,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 60 [2021-05-03 15:28:45,745 INFO L550 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:45,833 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:45,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:28:45,836 INFO L550 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:45,927 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:45,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:28:45,929 INFO L550 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,013 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 52 [2021-05-03 15:28:46,016 INFO L550 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,103 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 55 [2021-05-03 15:28:46,105 INFO L550 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,192 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-05-03 15:28:46,194 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,283 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 169 treesize of output 52 [2021-05-03 15:28:46,285 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,373 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:28:46,375 INFO L550 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,463 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:28:46,465 INFO L550 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,555 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-05-03 15:28:46,557 INFO L550 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,647 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:28:46,649 INFO L550 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,741 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:28:46,743 INFO L550 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,836 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:28:46,838 INFO L550 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:46,932 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:46,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:28:46,934 INFO L550 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:47,025 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:47,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 52 [2021-05-03 15:28:47,027 INFO L550 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:47,119 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:47,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:28:47,122 INFO L550 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:47,215 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:47,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-05-03 15:28:47,218 INFO L550 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:47,315 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:47,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 204 treesize of output 59 [2021-05-03 15:28:47,318 INFO L550 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:47,413 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:47,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:28:47,416 INFO L550 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:47,510 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:47,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:28:47,512 INFO L550 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:47,605 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:47,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-05-03 15:28:47,608 INFO L550 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:47,703 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:47,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:28:47,705 INFO L550 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:47,797 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:47,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 55 [2021-05-03 15:28:47,800 INFO L550 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:47,913 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:28:47,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 211 treesize of output 66 [2021-05-03 15:28:47,915 INFO L550 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:48,005 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:48,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:28:48,008 INFO L550 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:48,109 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:48,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 59 [2021-05-03 15:28:48,111 INFO L550 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:48,206 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:48,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:28:48,208 INFO L550 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:48,300 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:48,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:28:48,303 INFO L550 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:48,398 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:48,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:28:48,401 INFO L550 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:48,501 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:48,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 230 treesize of output 65 [2021-05-03 15:28:48,503 INFO L550 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:48,618 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:48,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-05-03 15:28:48,620 INFO L550 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:48,740 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:48,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:28:48,743 INFO L550 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:48,903 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:28:48,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 206 treesize of output 65 [2021-05-03 15:28:48,906 INFO L550 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:49,026 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:49,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 234 treesize of output 65 [2021-05-03 15:28:49,030 INFO L550 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:49,145 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:49,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:28:49,148 INFO L550 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:49,244 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:49,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:28:49,246 INFO L550 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:49,344 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:49,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 62 [2021-05-03 15:28:49,347 INFO L550 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:49,443 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:49,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 61 [2021-05-03 15:28:49,446 INFO L550 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:49,545 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:49,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 64 [2021-05-03 15:28:49,547 INFO L550 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:49,645 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:49,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-05-03 15:28:49,648 INFO L550 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:49,747 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:49,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 51 [2021-05-03 15:28:49,749 INFO L550 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:49,849 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:49,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 59 [2021-05-03 15:28:49,852 INFO L550 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:49,956 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:49,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-05-03 15:28:49,958 INFO L550 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:50,058 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:50,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-05-03 15:28:50,061 INFO L550 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:50,162 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:50,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 60 [2021-05-03 15:28:50,164 INFO L550 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:50,265 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:50,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-05-03 15:28:50,268 INFO L550 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:50,390 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:28:50,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-05-03 15:28:50,393 INFO L550 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:50,498 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:50,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 61 [2021-05-03 15:28:50,501 INFO L550 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:50,607 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:50,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:28:50,609 INFO L550 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:50,714 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:50,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 169 treesize of output 52 [2021-05-03 15:28:50,716 INFO L550 ElimStorePlain]: Start of recursive call 110: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:50,822 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:50,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 57 [2021-05-03 15:28:50,833 INFO L550 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:50,942 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:50,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:28:50,944 INFO L550 ElimStorePlain]: Start of recursive call 112: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:51,050 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:51,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:28:51,052 INFO L550 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:51,162 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:51,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:28:51,164 INFO L550 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:51,271 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:51,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:28:51,273 INFO L550 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:51,379 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:51,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-05-03 15:28:51,381 INFO L550 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:51,492 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:51,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 59 [2021-05-03 15:28:51,494 INFO L550 ElimStorePlain]: Start of recursive call 117: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:51,619 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:28:51,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 226 treesize of output 69 [2021-05-03 15:28:51,622 INFO L550 ElimStorePlain]: Start of recursive call 118: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:51,740 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:51,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:28:51,742 INFO L550 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:51,850 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:51,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-05-03 15:28:51,852 INFO L550 ElimStorePlain]: Start of recursive call 120: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:51,964 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:51,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:28:51,966 INFO L550 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:52,074 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:52,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-05-03 15:28:52,076 INFO L550 ElimStorePlain]: Start of recursive call 122: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:52,184 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:52,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 53 [2021-05-03 15:28:52,186 INFO L550 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:52,296 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:52,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 59 [2021-05-03 15:28:52,298 INFO L550 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:52,407 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:52,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:28:52,409 INFO L550 ElimStorePlain]: Start of recursive call 125: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:52,521 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:52,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-05-03 15:28:52,524 INFO L550 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:52,636 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:52,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 50 [2021-05-03 15:28:52,638 INFO L550 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:52,750 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:52,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 56 [2021-05-03 15:28:52,752 INFO L550 ElimStorePlain]: Start of recursive call 128: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:52,863 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:52,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:28:52,865 INFO L550 ElimStorePlain]: Start of recursive call 129: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:52,980 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:52,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 56 [2021-05-03 15:28:52,982 INFO L550 ElimStorePlain]: Start of recursive call 130: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:53,096 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:53,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 186 treesize of output 53 [2021-05-03 15:28:53,098 INFO L550 ElimStorePlain]: Start of recursive call 131: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:53,214 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:53,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 57 [2021-05-03 15:28:53,216 INFO L550 ElimStorePlain]: Start of recursive call 132: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:53,350 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:28:53,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 211 treesize of output 66 [2021-05-03 15:28:53,353 INFO L550 ElimStorePlain]: Start of recursive call 133: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:53,468 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:53,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:28:53,470 INFO L550 ElimStorePlain]: Start of recursive call 134: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:53,585 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:53,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-05-03 15:28:53,587 INFO L550 ElimStorePlain]: Start of recursive call 135: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:53,704 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:53,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-05-03 15:28:53,706 INFO L550 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:53,824 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:53,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:28:53,826 INFO L550 ElimStorePlain]: Start of recursive call 137: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:53,944 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:53,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 64 [2021-05-03 15:28:53,946 INFO L550 ElimStorePlain]: Start of recursive call 138: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:54,071 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:54,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 57 [2021-05-03 15:28:54,074 INFO L550 ElimStorePlain]: Start of recursive call 139: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:54,196 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:54,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:28:54,198 INFO L550 ElimStorePlain]: Start of recursive call 140: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:54,353 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:54,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 57 [2021-05-03 15:28:54,355 INFO L550 ElimStorePlain]: Start of recursive call 141: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:54,475 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:54,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 54 [2021-05-03 15:28:54,478 INFO L550 ElimStorePlain]: Start of recursive call 142: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:54,597 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:54,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 199 treesize of output 58 [2021-05-03 15:28:54,600 INFO L550 ElimStorePlain]: Start of recursive call 143: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:54,721 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:54,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 64 [2021-05-03 15:28:54,724 INFO L550 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:54,844 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:54,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:28:54,846 INFO L550 ElimStorePlain]: Start of recursive call 145: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:54,966 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:54,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 64 [2021-05-03 15:28:54,968 INFO L550 ElimStorePlain]: Start of recursive call 146: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:55,087 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:55,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-05-03 15:28:55,090 INFO L550 ElimStorePlain]: Start of recursive call 147: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:55,211 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:55,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 55 [2021-05-03 15:28:55,213 INFO L550 ElimStorePlain]: Start of recursive call 148: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:55,333 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:55,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:28:55,335 INFO L550 ElimStorePlain]: Start of recursive call 149: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:55,457 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:55,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 55 [2021-05-03 15:28:55,459 INFO L550 ElimStorePlain]: Start of recursive call 150: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:55,580 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:55,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 242 treesize of output 65 [2021-05-03 15:28:55,582 INFO L550 ElimStorePlain]: Start of recursive call 151: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:55,703 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:55,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:28:55,706 INFO L550 ElimStorePlain]: Start of recursive call 152: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:55,832 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:55,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 64 [2021-05-03 15:28:55,834 INFO L550 ElimStorePlain]: Start of recursive call 153: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:55,959 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:55,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-05-03 15:28:55,961 INFO L550 ElimStorePlain]: Start of recursive call 154: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:56,087 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:56,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:28:56,089 INFO L550 ElimStorePlain]: Start of recursive call 155: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:56,215 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:56,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-05-03 15:28:56,217 INFO L550 ElimStorePlain]: Start of recursive call 156: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:56,344 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:56,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-05-03 15:28:56,346 INFO L550 ElimStorePlain]: Start of recursive call 157: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:56,475 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:56,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 233 treesize of output 66 [2021-05-03 15:28:56,478 INFO L550 ElimStorePlain]: Start of recursive call 158: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:56,613 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:56,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 230 treesize of output 65 [2021-05-03 15:28:56,615 INFO L550 ElimStorePlain]: Start of recursive call 159: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:56,756 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:56,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-05-03 15:28:56,758 INFO L550 ElimStorePlain]: Start of recursive call 160: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:56,891 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:56,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-05-03 15:28:56,893 INFO L550 ElimStorePlain]: Start of recursive call 161: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:57,025 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:57,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 54 [2021-05-03 15:28:57,027 INFO L550 ElimStorePlain]: Start of recursive call 162: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:57,156 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:57,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 204 treesize of output 59 [2021-05-03 15:28:57,159 INFO L550 ElimStorePlain]: Start of recursive call 163: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:57,288 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:57,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:28:57,290 INFO L550 ElimStorePlain]: Start of recursive call 164: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:57,422 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:57,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 59 [2021-05-03 15:28:57,424 INFO L550 ElimStorePlain]: Start of recursive call 165: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:57,556 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:57,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 59 [2021-05-03 15:28:57,558 INFO L550 ElimStorePlain]: Start of recursive call 166: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:57,688 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:57,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:28:57,690 INFO L550 ElimStorePlain]: Start of recursive call 167: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:57,821 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:57,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:28:57,823 INFO L550 ElimStorePlain]: Start of recursive call 168: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:57,954 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:57,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:28:57,956 INFO L550 ElimStorePlain]: Start of recursive call 169: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:58,084 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:58,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:28:58,086 INFO L550 ElimStorePlain]: Start of recursive call 170: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:58,213 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:58,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:28:58,216 INFO L550 ElimStorePlain]: Start of recursive call 171: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:58,343 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:58,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 52 [2021-05-03 15:28:58,345 INFO L550 ElimStorePlain]: Start of recursive call 172: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:58,480 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:58,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 178 treesize of output 53 [2021-05-03 15:28:58,483 INFO L550 ElimStorePlain]: Start of recursive call 173: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:58,671 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:58,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:28:58,674 INFO L550 ElimStorePlain]: Start of recursive call 174: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:58,741 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:58,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:28:58,743 INFO L550 ElimStorePlain]: Start of recursive call 175: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:58,812 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:58,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:28:58,814 INFO L550 ElimStorePlain]: Start of recursive call 176: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:58,885 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:58,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-05-03 15:28:58,887 INFO L550 ElimStorePlain]: Start of recursive call 177: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:58,957 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:58,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 52 [2021-05-03 15:28:58,959 INFO L550 ElimStorePlain]: Start of recursive call 178: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,031 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:28:59,033 INFO L550 ElimStorePlain]: Start of recursive call 179: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,124 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:28:59,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-05-03 15:28:59,127 INFO L550 ElimStorePlain]: Start of recursive call 180: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,198 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-05-03 15:28:59,200 INFO L550 ElimStorePlain]: Start of recursive call 181: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,271 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 58 [2021-05-03 15:28:59,273 INFO L550 ElimStorePlain]: Start of recursive call 182: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,345 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:28:59,348 INFO L550 ElimStorePlain]: Start of recursive call 183: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,420 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:28:59,422 INFO L550 ElimStorePlain]: Start of recursive call 184: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,496 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:28:59,498 INFO L550 ElimStorePlain]: Start of recursive call 185: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,573 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:28:59,575 INFO L550 ElimStorePlain]: Start of recursive call 186: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,650 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:28:59,652 INFO L550 ElimStorePlain]: Start of recursive call 187: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,725 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 57 [2021-05-03 15:28:59,728 INFO L550 ElimStorePlain]: Start of recursive call 188: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,803 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:28:59,806 INFO L550 ElimStorePlain]: Start of recursive call 189: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,881 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-05-03 15:28:59,883 INFO L550 ElimStorePlain]: Start of recursive call 190: End of recursive call: and 1 xjuncts. [2021-05-03 15:28:59,958 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:28:59,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-05-03 15:28:59,960 INFO L550 ElimStorePlain]: Start of recursive call 191: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,036 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-05-03 15:29:00,038 INFO L550 ElimStorePlain]: Start of recursive call 192: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,115 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 62 [2021-05-03 15:29:00,118 INFO L550 ElimStorePlain]: Start of recursive call 193: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,196 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-05-03 15:29:00,198 INFO L550 ElimStorePlain]: Start of recursive call 194: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,277 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:00,279 INFO L550 ElimStorePlain]: Start of recursive call 195: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,358 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-05-03 15:29:00,361 INFO L550 ElimStorePlain]: Start of recursive call 196: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,442 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:00,444 INFO L550 ElimStorePlain]: Start of recursive call 197: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,546 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:00,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 211 treesize of output 66 [2021-05-03 15:29:00,548 INFO L550 ElimStorePlain]: Start of recursive call 198: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,630 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:29:00,632 INFO L550 ElimStorePlain]: Start of recursive call 199: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,713 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:29:00,715 INFO L550 ElimStorePlain]: Start of recursive call 200: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,797 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:29:00,800 INFO L550 ElimStorePlain]: Start of recursive call 201: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,882 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:00,884 INFO L550 ElimStorePlain]: Start of recursive call 202: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:00,967 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:00,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:00,969 INFO L550 ElimStorePlain]: Start of recursive call 203: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,053 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:01,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-05-03 15:29:01,055 INFO L550 ElimStorePlain]: Start of recursive call 204: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,137 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:01,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 64 [2021-05-03 15:29:01,140 INFO L550 ElimStorePlain]: Start of recursive call 205: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,224 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:01,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:29:01,226 INFO L550 ElimStorePlain]: Start of recursive call 206: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,311 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:01,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:29:01,313 INFO L550 ElimStorePlain]: Start of recursive call 207: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,415 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:01,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-05-03 15:29:01,418 INFO L550 ElimStorePlain]: Start of recursive call 208: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,501 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:01,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-05-03 15:29:01,503 INFO L550 ElimStorePlain]: Start of recursive call 209: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,587 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:01,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-05-03 15:29:01,589 INFO L550 ElimStorePlain]: Start of recursive call 210: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,673 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:01,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:29:01,676 INFO L550 ElimStorePlain]: Start of recursive call 211: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,761 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:01,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-05-03 15:29:01,764 INFO L550 ElimStorePlain]: Start of recursive call 212: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,848 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:01,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:29:01,850 INFO L550 ElimStorePlain]: Start of recursive call 213: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:01,934 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:01,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:01,936 INFO L550 ElimStorePlain]: Start of recursive call 214: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,021 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:02,023 INFO L550 ElimStorePlain]: Start of recursive call 215: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,108 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:02,110 INFO L550 ElimStorePlain]: Start of recursive call 216: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,195 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-05-03 15:29:02,197 INFO L550 ElimStorePlain]: Start of recursive call 217: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,280 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:29:02,283 INFO L550 ElimStorePlain]: Start of recursive call 218: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,364 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 228 treesize of output 65 [2021-05-03 15:29:02,366 INFO L550 ElimStorePlain]: Start of recursive call 219: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,448 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 53 [2021-05-03 15:29:02,451 INFO L550 ElimStorePlain]: Start of recursive call 220: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,533 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:29:02,536 INFO L550 ElimStorePlain]: Start of recursive call 221: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,618 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 50 [2021-05-03 15:29:02,620 INFO L550 ElimStorePlain]: Start of recursive call 222: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,706 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 64 [2021-05-03 15:29:02,708 INFO L550 ElimStorePlain]: Start of recursive call 223: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,792 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 237 treesize of output 64 [2021-05-03 15:29:02,794 INFO L550 ElimStorePlain]: Start of recursive call 224: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,879 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:02,881 INFO L550 ElimStorePlain]: Start of recursive call 225: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:02,966 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:02,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 55 [2021-05-03 15:29:02,968 INFO L550 ElimStorePlain]: Start of recursive call 226: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:03,065 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:03,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:03,067 INFO L550 ElimStorePlain]: Start of recursive call 227: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:03,165 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:03,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:03,167 INFO L550 ElimStorePlain]: Start of recursive call 228: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:03,254 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:03,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 60 [2021-05-03 15:29:03,257 INFO L550 ElimStorePlain]: Start of recursive call 229: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:03,344 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:03,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:03,346 INFO L550 ElimStorePlain]: Start of recursive call 230: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:03,439 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:03,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:03,441 INFO L550 ElimStorePlain]: Start of recursive call 231: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:03,531 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:03,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-05-03 15:29:03,533 INFO L550 ElimStorePlain]: Start of recursive call 232: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:03,631 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:03,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 64 [2021-05-03 15:29:03,633 INFO L550 ElimStorePlain]: Start of recursive call 233: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:03,740 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:03,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 206 treesize of output 65 [2021-05-03 15:29:03,742 INFO L550 ElimStorePlain]: Start of recursive call 234: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:03,831 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:03,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 59 [2021-05-03 15:29:03,833 INFO L550 ElimStorePlain]: Start of recursive call 235: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:03,922 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:03,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-05-03 15:29:03,924 INFO L550 ElimStorePlain]: Start of recursive call 236: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,013 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 64 [2021-05-03 15:29:04,015 INFO L550 ElimStorePlain]: Start of recursive call 237: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,105 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 53 [2021-05-03 15:29:04,107 INFO L550 ElimStorePlain]: Start of recursive call 238: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,197 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-05-03 15:29:04,199 INFO L550 ElimStorePlain]: Start of recursive call 239: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,290 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 231 treesize of output 66 [2021-05-03 15:29:04,293 INFO L550 ElimStorePlain]: Start of recursive call 240: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,386 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 55 [2021-05-03 15:29:04,388 INFO L550 ElimStorePlain]: Start of recursive call 241: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,480 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:29:04,482 INFO L550 ElimStorePlain]: Start of recursive call 242: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,577 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:29:04,579 INFO L550 ElimStorePlain]: Start of recursive call 243: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,671 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 51 [2021-05-03 15:29:04,673 INFO L550 ElimStorePlain]: Start of recursive call 244: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,765 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:04,767 INFO L550 ElimStorePlain]: Start of recursive call 245: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,859 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:04,861 INFO L550 ElimStorePlain]: Start of recursive call 246: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:04,955 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:04,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:04,957 INFO L550 ElimStorePlain]: Start of recursive call 247: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:05,049 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:05,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-05-03 15:29:05,051 INFO L550 ElimStorePlain]: Start of recursive call 248: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:05,143 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:05,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-05-03 15:29:05,145 INFO L550 ElimStorePlain]: Start of recursive call 249: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:05,238 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:05,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:05,240 INFO L550 ElimStorePlain]: Start of recursive call 250: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:05,334 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:05,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:29:05,336 INFO L550 ElimStorePlain]: Start of recursive call 251: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:05,431 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:05,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:05,433 INFO L550 ElimStorePlain]: Start of recursive call 252: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:05,534 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:05,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:05,537 INFO L550 ElimStorePlain]: Start of recursive call 253: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:05,650 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:05,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 68 [2021-05-03 15:29:05,653 INFO L550 ElimStorePlain]: Start of recursive call 254: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:05,766 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:05,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-05-03 15:29:05,768 INFO L550 ElimStorePlain]: Start of recursive call 255: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:05,867 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:05,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 64 [2021-05-03 15:29:05,869 INFO L550 ElimStorePlain]: Start of recursive call 256: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:05,963 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:05,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 52 [2021-05-03 15:29:05,965 INFO L550 ElimStorePlain]: Start of recursive call 257: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:06,064 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:06,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-05-03 15:29:06,066 INFO L550 ElimStorePlain]: Start of recursive call 258: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:06,163 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:06,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 54 [2021-05-03 15:29:06,166 INFO L550 ElimStorePlain]: Start of recursive call 259: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:06,263 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:06,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:06,265 INFO L550 ElimStorePlain]: Start of recursive call 260: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:06,362 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:06,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:29:06,365 INFO L550 ElimStorePlain]: Start of recursive call 261: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:06,453 INFO L354 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2021-05-03 15:29:06,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 162 treesize of output 46 [2021-05-03 15:29:06,455 INFO L550 ElimStorePlain]: Start of recursive call 262: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:06,554 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:06,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:06,557 INFO L550 ElimStorePlain]: Start of recursive call 263: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:06,660 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:06,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-05-03 15:29:06,662 INFO L550 ElimStorePlain]: Start of recursive call 264: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:06,761 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:06,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:06,764 INFO L550 ElimStorePlain]: Start of recursive call 265: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:06,863 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:06,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 204 treesize of output 59 [2021-05-03 15:29:06,866 INFO L550 ElimStorePlain]: Start of recursive call 266: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:06,966 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:06,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-05-03 15:29:06,968 INFO L550 ElimStorePlain]: Start of recursive call 267: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:07,068 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:07,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 62 [2021-05-03 15:29:07,070 INFO L550 ElimStorePlain]: Start of recursive call 268: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:07,171 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:07,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:07,174 INFO L550 ElimStorePlain]: Start of recursive call 269: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:07,282 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:07,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-05-03 15:29:07,285 INFO L550 ElimStorePlain]: Start of recursive call 270: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:07,384 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:07,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 235 treesize of output 66 [2021-05-03 15:29:07,387 INFO L550 ElimStorePlain]: Start of recursive call 271: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:07,484 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:07,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-05-03 15:29:07,491 INFO L550 ElimStorePlain]: Start of recursive call 272: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:07,590 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:07,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:07,593 INFO L550 ElimStorePlain]: Start of recursive call 273: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:07,690 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:07,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 237 treesize of output 64 [2021-05-03 15:29:07,692 INFO L550 ElimStorePlain]: Start of recursive call 274: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:07,783 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:07,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 65 [2021-05-03 15:29:07,785 INFO L550 ElimStorePlain]: Start of recursive call 275: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:07,881 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:07,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 52 [2021-05-03 15:29:07,885 INFO L550 ElimStorePlain]: Start of recursive call 276: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:07,981 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:07,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 64 [2021-05-03 15:29:07,983 INFO L550 ElimStorePlain]: Start of recursive call 277: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:08,084 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:08,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-05-03 15:29:08,087 INFO L550 ElimStorePlain]: Start of recursive call 278: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:08,186 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:08,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 57 [2021-05-03 15:29:08,189 INFO L550 ElimStorePlain]: Start of recursive call 279: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:08,283 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:08,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-05-03 15:29:08,285 INFO L550 ElimStorePlain]: Start of recursive call 280: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:08,379 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:08,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:08,382 INFO L550 ElimStorePlain]: Start of recursive call 281: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:08,481 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:08,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:29:08,484 INFO L550 ElimStorePlain]: Start of recursive call 282: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:08,588 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:08,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:08,590 INFO L550 ElimStorePlain]: Start of recursive call 283: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:08,686 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:08,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 187 treesize of output 54 [2021-05-03 15:29:08,688 INFO L550 ElimStorePlain]: Start of recursive call 284: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:08,785 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:08,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:08,787 INFO L550 ElimStorePlain]: Start of recursive call 285: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:08,882 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:08,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:08,884 INFO L550 ElimStorePlain]: Start of recursive call 286: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:08,981 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:08,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:08,983 INFO L550 ElimStorePlain]: Start of recursive call 287: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:09,096 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:09,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 52 [2021-05-03 15:29:09,098 INFO L550 ElimStorePlain]: Start of recursive call 288: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:09,205 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:09,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:09,207 INFO L550 ElimStorePlain]: Start of recursive call 289: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:09,318 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:09,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 54 [2021-05-03 15:29:09,321 INFO L550 ElimStorePlain]: Start of recursive call 290: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:09,439 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:09,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:09,441 INFO L550 ElimStorePlain]: Start of recursive call 291: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:09,553 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:09,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-05-03 15:29:09,556 INFO L550 ElimStorePlain]: Start of recursive call 292: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:09,667 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:09,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 61 [2021-05-03 15:29:09,670 INFO L550 ElimStorePlain]: Start of recursive call 293: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:09,786 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:09,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 65 [2021-05-03 15:29:09,789 INFO L550 ElimStorePlain]: Start of recursive call 294: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:09,908 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:09,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 56 [2021-05-03 15:29:09,910 INFO L550 ElimStorePlain]: Start of recursive call 295: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:10,028 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:10,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:10,030 INFO L550 ElimStorePlain]: Start of recursive call 296: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:10,147 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:10,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-05-03 15:29:10,150 INFO L550 ElimStorePlain]: Start of recursive call 297: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:10,256 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:10,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-05-03 15:29:10,258 INFO L550 ElimStorePlain]: Start of recursive call 298: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:10,372 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:10,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 54 [2021-05-03 15:29:10,375 INFO L550 ElimStorePlain]: Start of recursive call 299: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:10,489 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:10,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 60 [2021-05-03 15:29:10,491 INFO L550 ElimStorePlain]: Start of recursive call 300: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:10,599 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:10,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 53 [2021-05-03 15:29:10,602 INFO L550 ElimStorePlain]: Start of recursive call 301: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:10,714 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:10,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 64 [2021-05-03 15:29:10,716 INFO L550 ElimStorePlain]: Start of recursive call 302: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:10,828 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:10,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 57 [2021-05-03 15:29:10,831 INFO L550 ElimStorePlain]: Start of recursive call 303: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:10,946 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:10,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:29:10,950 INFO L550 ElimStorePlain]: Start of recursive call 304: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:11,064 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:11,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:11,066 INFO L550 ElimStorePlain]: Start of recursive call 305: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:11,179 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:11,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 64 [2021-05-03 15:29:11,182 INFO L550 ElimStorePlain]: Start of recursive call 306: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:11,292 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:11,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 51 [2021-05-03 15:29:11,294 INFO L550 ElimStorePlain]: Start of recursive call 307: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:11,407 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:11,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-05-03 15:29:11,410 INFO L550 ElimStorePlain]: Start of recursive call 308: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:11,520 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:11,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:11,523 INFO L550 ElimStorePlain]: Start of recursive call 309: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:11,633 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:11,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 64 [2021-05-03 15:29:11,635 INFO L550 ElimStorePlain]: Start of recursive call 310: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:11,750 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:11,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:11,752 INFO L550 ElimStorePlain]: Start of recursive call 311: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:11,869 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:11,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:29:11,871 INFO L550 ElimStorePlain]: Start of recursive call 312: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:11,986 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:11,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 54 [2021-05-03 15:29:11,989 INFO L550 ElimStorePlain]: Start of recursive call 313: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:12,107 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:12,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:12,110 INFO L550 ElimStorePlain]: Start of recursive call 314: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:12,225 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:12,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:12,228 INFO L550 ElimStorePlain]: Start of recursive call 315: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:12,340 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:12,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:12,342 INFO L550 ElimStorePlain]: Start of recursive call 316: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:12,456 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:12,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 189 treesize of output 56 [2021-05-03 15:29:12,459 INFO L550 ElimStorePlain]: Start of recursive call 317: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:12,575 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:12,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 61 [2021-05-03 15:29:12,577 INFO L550 ElimStorePlain]: Start of recursive call 318: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:12,691 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:12,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 55 [2021-05-03 15:29:12,694 INFO L550 ElimStorePlain]: Start of recursive call 319: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:12,809 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:12,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:12,811 INFO L550 ElimStorePlain]: Start of recursive call 320: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:12,926 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:12,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:12,930 INFO L550 ElimStorePlain]: Start of recursive call 321: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,061 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:13,064 INFO L550 ElimStorePlain]: Start of recursive call 322: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,126 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 56 [2021-05-03 15:29:13,129 INFO L550 ElimStorePlain]: Start of recursive call 323: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,195 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 62 [2021-05-03 15:29:13,198 INFO L550 ElimStorePlain]: Start of recursive call 324: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,273 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:13,276 INFO L550 ElimStorePlain]: Start of recursive call 325: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,352 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:29:13,355 INFO L550 ElimStorePlain]: Start of recursive call 326: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,424 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:29:13,427 INFO L550 ElimStorePlain]: Start of recursive call 327: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,495 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 62 [2021-05-03 15:29:13,499 INFO L550 ElimStorePlain]: Start of recursive call 328: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,563 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:13,566 INFO L550 ElimStorePlain]: Start of recursive call 329: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,629 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:13,631 INFO L550 ElimStorePlain]: Start of recursive call 330: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,696 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 59 [2021-05-03 15:29:13,699 INFO L550 ElimStorePlain]: Start of recursive call 331: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,785 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:13,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 231 treesize of output 70 [2021-05-03 15:29:13,789 INFO L550 ElimStorePlain]: Start of recursive call 332: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,854 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 60 [2021-05-03 15:29:13,856 INFO L550 ElimStorePlain]: Start of recursive call 333: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,919 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-05-03 15:29:13,922 INFO L550 ElimStorePlain]: Start of recursive call 334: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:13,981 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:13,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:29:13,983 INFO L550 ElimStorePlain]: Start of recursive call 335: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,047 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:14,050 INFO L550 ElimStorePlain]: Start of recursive call 336: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,112 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:14,115 INFO L550 ElimStorePlain]: Start of recursive call 337: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,179 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 58 [2021-05-03 15:29:14,182 INFO L550 ElimStorePlain]: Start of recursive call 338: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,246 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 60 [2021-05-03 15:29:14,248 INFO L550 ElimStorePlain]: Start of recursive call 339: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,313 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-05-03 15:29:14,315 INFO L550 ElimStorePlain]: Start of recursive call 340: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,376 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 65 [2021-05-03 15:29:14,379 INFO L550 ElimStorePlain]: Start of recursive call 341: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,430 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:14,432 INFO L550 ElimStorePlain]: Start of recursive call 342: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,483 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:14,485 INFO L550 ElimStorePlain]: Start of recursive call 343: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,536 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:14,538 INFO L550 ElimStorePlain]: Start of recursive call 344: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,601 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 55 [2021-05-03 15:29:14,603 INFO L550 ElimStorePlain]: Start of recursive call 345: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,670 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:29:14,672 INFO L550 ElimStorePlain]: Start of recursive call 346: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,735 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:29:14,738 INFO L550 ElimStorePlain]: Start of recursive call 347: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,799 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:14,802 INFO L550 ElimStorePlain]: Start of recursive call 348: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,870 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:14,872 INFO L550 ElimStorePlain]: Start of recursive call 349: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:14,938 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:14,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 60 [2021-05-03 15:29:14,940 INFO L550 ElimStorePlain]: Start of recursive call 350: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,007 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:15,009 INFO L550 ElimStorePlain]: Start of recursive call 351: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,091 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:15,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 226 treesize of output 69 [2021-05-03 15:29:15,095 INFO L550 ElimStorePlain]: Start of recursive call 352: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,163 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:15,166 INFO L550 ElimStorePlain]: Start of recursive call 353: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,236 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 51 [2021-05-03 15:29:15,238 INFO L550 ElimStorePlain]: Start of recursive call 354: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,308 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 53 [2021-05-03 15:29:15,311 INFO L550 ElimStorePlain]: Start of recursive call 355: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,381 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 62 [2021-05-03 15:29:15,384 INFO L550 ElimStorePlain]: Start of recursive call 356: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,480 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:15,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 68 [2021-05-03 15:29:15,484 INFO L550 ElimStorePlain]: Start of recursive call 357: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,554 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 53 [2021-05-03 15:29:15,556 INFO L550 ElimStorePlain]: Start of recursive call 358: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,627 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:15,629 INFO L550 ElimStorePlain]: Start of recursive call 359: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,699 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:29:15,702 INFO L550 ElimStorePlain]: Start of recursive call 360: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,771 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 64 [2021-05-03 15:29:15,773 INFO L550 ElimStorePlain]: Start of recursive call 361: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,843 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:15,846 INFO L550 ElimStorePlain]: Start of recursive call 362: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,918 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 187 treesize of output 54 [2021-05-03 15:29:15,921 INFO L550 ElimStorePlain]: Start of recursive call 363: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:15,994 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:15,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-05-03 15:29:15,996 INFO L550 ElimStorePlain]: Start of recursive call 364: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,065 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-05-03 15:29:16,067 INFO L550 ElimStorePlain]: Start of recursive call 365: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,128 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 56 [2021-05-03 15:29:16,130 INFO L550 ElimStorePlain]: Start of recursive call 366: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,187 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-05-03 15:29:16,189 INFO L550 ElimStorePlain]: Start of recursive call 367: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,243 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-05-03 15:29:16,244 INFO L550 ElimStorePlain]: Start of recursive call 368: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,314 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-05-03 15:29:16,317 INFO L550 ElimStorePlain]: Start of recursive call 369: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,397 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 64 [2021-05-03 15:29:16,400 INFO L550 ElimStorePlain]: Start of recursive call 370: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,482 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-05-03 15:29:16,485 INFO L550 ElimStorePlain]: Start of recursive call 371: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,567 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 56 [2021-05-03 15:29:16,571 INFO L550 ElimStorePlain]: Start of recursive call 372: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,649 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:16,651 INFO L550 ElimStorePlain]: Start of recursive call 373: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,717 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 187 treesize of output 54 [2021-05-03 15:29:16,719 INFO L550 ElimStorePlain]: Start of recursive call 374: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,800 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:16,802 INFO L550 ElimStorePlain]: Start of recursive call 375: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,859 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-05-03 15:29:16,861 INFO L550 ElimStorePlain]: Start of recursive call 376: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,919 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:16,922 INFO L550 ElimStorePlain]: Start of recursive call 377: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:16,991 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:16,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-05-03 15:29:16,994 INFO L550 ElimStorePlain]: Start of recursive call 378: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,065 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 53 [2021-05-03 15:29:17,068 INFO L550 ElimStorePlain]: Start of recursive call 379: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,136 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-05-03 15:29:17,138 INFO L550 ElimStorePlain]: Start of recursive call 380: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,206 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:17,209 INFO L550 ElimStorePlain]: Start of recursive call 381: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,279 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 183 treesize of output 54 [2021-05-03 15:29:17,281 INFO L550 ElimStorePlain]: Start of recursive call 382: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,350 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 61 [2021-05-03 15:29:17,352 INFO L550 ElimStorePlain]: Start of recursive call 383: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,412 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-05-03 15:29:17,415 INFO L550 ElimStorePlain]: Start of recursive call 384: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,472 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:29:17,474 INFO L550 ElimStorePlain]: Start of recursive call 385: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,537 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-05-03 15:29:17,540 INFO L550 ElimStorePlain]: Start of recursive call 386: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,613 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 50 [2021-05-03 15:29:17,616 INFO L550 ElimStorePlain]: Start of recursive call 387: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,691 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 54 [2021-05-03 15:29:17,693 INFO L550 ElimStorePlain]: Start of recursive call 388: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,763 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 53 [2021-05-03 15:29:17,765 INFO L550 ElimStorePlain]: Start of recursive call 389: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,836 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 228 treesize of output 65 [2021-05-03 15:29:17,838 INFO L550 ElimStorePlain]: Start of recursive call 390: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,901 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:17,903 INFO L550 ElimStorePlain]: Start of recursive call 391: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:17,962 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:17,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:17,964 INFO L550 ElimStorePlain]: Start of recursive call 392: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,021 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:18,023 INFO L550 ElimStorePlain]: Start of recursive call 393: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,087 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:18,089 INFO L550 ElimStorePlain]: Start of recursive call 394: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,162 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:18,164 INFO L550 ElimStorePlain]: Start of recursive call 395: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,239 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 56 [2021-05-03 15:29:18,242 INFO L550 ElimStorePlain]: Start of recursive call 396: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,315 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:18,317 INFO L550 ElimStorePlain]: Start of recursive call 397: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,387 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 56 [2021-05-03 15:29:18,390 INFO L550 ElimStorePlain]: Start of recursive call 398: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,464 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:29:18,466 INFO L550 ElimStorePlain]: Start of recursive call 399: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,540 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:18,542 INFO L550 ElimStorePlain]: Start of recursive call 400: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,632 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:18,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 68 [2021-05-03 15:29:18,634 INFO L550 ElimStorePlain]: Start of recursive call 401: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,722 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:18,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 201 treesize of output 64 [2021-05-03 15:29:18,724 INFO L550 ElimStorePlain]: Start of recursive call 402: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,793 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-05-03 15:29:18,796 INFO L550 ElimStorePlain]: Start of recursive call 403: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,861 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 60 [2021-05-03 15:29:18,864 INFO L550 ElimStorePlain]: Start of recursive call 404: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,929 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-05-03 15:29:18,931 INFO L550 ElimStorePlain]: Start of recursive call 405: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:18,997 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:18,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 229 treesize of output 64 [2021-05-03 15:29:19,000 INFO L550 ElimStorePlain]: Start of recursive call 406: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,069 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 237 treesize of output 64 [2021-05-03 15:29:19,072 INFO L550 ElimStorePlain]: Start of recursive call 407: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,146 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 232 treesize of output 63 [2021-05-03 15:29:19,149 INFO L550 ElimStorePlain]: Start of recursive call 408: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,226 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 57 [2021-05-03 15:29:19,228 INFO L550 ElimStorePlain]: Start of recursive call 409: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,300 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:19,303 INFO L550 ElimStorePlain]: Start of recursive call 410: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,400 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:19,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-05-03 15:29:19,403 INFO L550 ElimStorePlain]: Start of recursive call 411: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,477 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:19,479 INFO L550 ElimStorePlain]: Start of recursive call 412: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,555 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 51 [2021-05-03 15:29:19,558 INFO L550 ElimStorePlain]: Start of recursive call 413: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,631 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 51 [2021-05-03 15:29:19,633 INFO L550 ElimStorePlain]: Start of recursive call 414: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,709 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:29:19,712 INFO L550 ElimStorePlain]: Start of recursive call 415: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,786 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:29:19,789 INFO L550 ElimStorePlain]: Start of recursive call 416: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,862 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:19,864 INFO L550 ElimStorePlain]: Start of recursive call 417: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:19,937 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:19,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-05-03 15:29:19,940 INFO L550 ElimStorePlain]: Start of recursive call 418: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,013 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-05-03 15:29:20,015 INFO L550 ElimStorePlain]: Start of recursive call 419: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,087 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 62 [2021-05-03 15:29:20,090 INFO L550 ElimStorePlain]: Start of recursive call 420: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,164 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-05-03 15:29:20,166 INFO L550 ElimStorePlain]: Start of recursive call 421: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,241 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 61 [2021-05-03 15:29:20,244 INFO L550 ElimStorePlain]: Start of recursive call 422: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,320 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 58 [2021-05-03 15:29:20,323 INFO L550 ElimStorePlain]: Start of recursive call 423: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,424 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:20,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 226 treesize of output 69 [2021-05-03 15:29:20,428 INFO L550 ElimStorePlain]: Start of recursive call 424: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,511 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:20,514 INFO L550 ElimStorePlain]: Start of recursive call 425: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,588 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:20,591 INFO L550 ElimStorePlain]: Start of recursive call 426: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,662 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:20,664 INFO L550 ElimStorePlain]: Start of recursive call 427: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,735 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-05-03 15:29:20,738 INFO L550 ElimStorePlain]: Start of recursive call 428: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,808 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:20,811 INFO L550 ElimStorePlain]: Start of recursive call 429: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,881 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:20,883 INFO L550 ElimStorePlain]: Start of recursive call 430: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:20,956 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:20,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:20,958 INFO L550 ElimStorePlain]: Start of recursive call 431: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,028 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 53 [2021-05-03 15:29:21,030 INFO L550 ElimStorePlain]: Start of recursive call 432: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,100 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-05-03 15:29:21,104 INFO L550 ElimStorePlain]: Start of recursive call 433: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,172 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:21,175 INFO L550 ElimStorePlain]: Start of recursive call 434: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,248 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:21,250 INFO L550 ElimStorePlain]: Start of recursive call 435: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,323 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-05-03 15:29:21,326 INFO L550 ElimStorePlain]: Start of recursive call 436: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,421 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:21,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 211 treesize of output 66 [2021-05-03 15:29:21,424 INFO L550 ElimStorePlain]: Start of recursive call 437: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,518 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:21,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 68 [2021-05-03 15:29:21,521 INFO L550 ElimStorePlain]: Start of recursive call 438: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,588 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-05-03 15:29:21,590 INFO L550 ElimStorePlain]: Start of recursive call 439: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,658 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:29:21,660 INFO L550 ElimStorePlain]: Start of recursive call 440: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,727 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 56 [2021-05-03 15:29:21,730 INFO L550 ElimStorePlain]: Start of recursive call 441: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,800 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:21,802 INFO L550 ElimStorePlain]: Start of recursive call 442: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,872 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:21,874 INFO L550 ElimStorePlain]: Start of recursive call 443: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:21,946 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:21,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 61 [2021-05-03 15:29:21,949 INFO L550 ElimStorePlain]: Start of recursive call 444: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,018 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 56 [2021-05-03 15:29:22,022 INFO L550 ElimStorePlain]: Start of recursive call 445: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,091 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:22,093 INFO L550 ElimStorePlain]: Start of recursive call 446: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,161 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 220 treesize of output 63 [2021-05-03 15:29:22,163 INFO L550 ElimStorePlain]: Start of recursive call 447: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,230 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:29:22,232 INFO L550 ElimStorePlain]: Start of recursive call 448: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,324 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:22,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 211 treesize of output 66 [2021-05-03 15:29:22,326 INFO L550 ElimStorePlain]: Start of recursive call 449: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,393 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 204 treesize of output 59 [2021-05-03 15:29:22,396 INFO L550 ElimStorePlain]: Start of recursive call 450: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,468 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 50 [2021-05-03 15:29:22,470 INFO L550 ElimStorePlain]: Start of recursive call 451: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,537 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 59 [2021-05-03 15:29:22,539 INFO L550 ElimStorePlain]: Start of recursive call 452: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,605 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:22,607 INFO L550 ElimStorePlain]: Start of recursive call 453: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,673 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 58 [2021-05-03 15:29:22,675 INFO L550 ElimStorePlain]: Start of recursive call 454: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,740 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 216 treesize of output 63 [2021-05-03 15:29:22,742 INFO L550 ElimStorePlain]: Start of recursive call 455: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,806 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:22,809 INFO L550 ElimStorePlain]: Start of recursive call 456: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,886 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 57 [2021-05-03 15:29:22,888 INFO L550 ElimStorePlain]: Start of recursive call 457: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:22,967 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:22,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-05-03 15:29:22,970 INFO L550 ElimStorePlain]: Start of recursive call 458: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,041 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:23,043 INFO L550 ElimStorePlain]: Start of recursive call 459: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,114 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 59 [2021-05-03 15:29:23,116 INFO L550 ElimStorePlain]: Start of recursive call 460: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,187 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-05-03 15:29:23,189 INFO L550 ElimStorePlain]: Start of recursive call 461: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,258 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:29:23,260 INFO L550 ElimStorePlain]: Start of recursive call 462: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,326 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 210 treesize of output 61 [2021-05-03 15:29:23,329 INFO L550 ElimStorePlain]: Start of recursive call 463: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,399 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 187 treesize of output 54 [2021-05-03 15:29:23,402 INFO L550 ElimStorePlain]: Start of recursive call 464: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,470 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 218 treesize of output 63 [2021-05-03 15:29:23,472 INFO L550 ElimStorePlain]: Start of recursive call 465: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,542 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 61 [2021-05-03 15:29:23,544 INFO L550 ElimStorePlain]: Start of recursive call 466: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,611 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-05-03 15:29:23,613 INFO L550 ElimStorePlain]: Start of recursive call 467: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,679 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:23,681 INFO L550 ElimStorePlain]: Start of recursive call 468: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,750 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:23,752 INFO L550 ElimStorePlain]: Start of recursive call 469: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,819 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 214 treesize of output 61 [2021-05-03 15:29:23,821 INFO L550 ElimStorePlain]: Start of recursive call 470: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,891 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:23,895 INFO L550 ElimStorePlain]: Start of recursive call 471: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:23,961 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:23,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:29:23,964 INFO L550 ElimStorePlain]: Start of recursive call 472: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,036 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 56 [2021-05-03 15:29:24,038 INFO L550 ElimStorePlain]: Start of recursive call 473: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,104 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:24,107 INFO L550 ElimStorePlain]: Start of recursive call 474: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,169 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 221 treesize of output 64 [2021-05-03 15:29:24,171 INFO L550 ElimStorePlain]: Start of recursive call 475: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,235 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 180 treesize of output 55 [2021-05-03 15:29:24,237 INFO L550 ElimStorePlain]: Start of recursive call 476: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,302 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:24,305 INFO L550 ElimStorePlain]: Start of recursive call 477: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,374 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:29:24,377 INFO L550 ElimStorePlain]: Start of recursive call 478: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,443 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 62 [2021-05-03 15:29:24,446 INFO L550 ElimStorePlain]: Start of recursive call 479: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,512 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 213 treesize of output 60 [2021-05-03 15:29:24,514 INFO L550 ElimStorePlain]: Start of recursive call 480: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,578 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 203 treesize of output 58 [2021-05-03 15:29:24,580 INFO L550 ElimStorePlain]: Start of recursive call 481: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,642 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 185 treesize of output 56 [2021-05-03 15:29:24,645 INFO L550 ElimStorePlain]: Start of recursive call 482: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,711 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 205 treesize of output 60 [2021-05-03 15:29:24,715 INFO L550 ElimStorePlain]: Start of recursive call 483: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,780 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 57 [2021-05-03 15:29:24,783 INFO L550 ElimStorePlain]: Start of recursive call 484: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,841 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 188 treesize of output 55 [2021-05-03 15:29:24,843 INFO L550 ElimStorePlain]: Start of recursive call 485: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,893 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 208 treesize of output 59 [2021-05-03 15:29:24,895 INFO L550 ElimStorePlain]: Start of recursive call 486: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:24,948 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:24,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-05-03 15:29:24,951 INFO L550 ElimStorePlain]: Start of recursive call 487: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,018 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:29:25,020 INFO L550 ElimStorePlain]: Start of recursive call 488: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,086 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 55 [2021-05-03 15:29:25,089 INFO L550 ElimStorePlain]: Start of recursive call 489: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,156 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 53 [2021-05-03 15:29:25,158 INFO L550 ElimStorePlain]: Start of recursive call 490: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,224 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 200 treesize of output 59 [2021-05-03 15:29:25,226 INFO L550 ElimStorePlain]: Start of recursive call 491: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,310 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:25,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 67 [2021-05-03 15:29:25,312 INFO L550 ElimStorePlain]: Start of recursive call 492: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,370 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 225 treesize of output 64 [2021-05-03 15:29:25,372 INFO L550 ElimStorePlain]: Start of recursive call 493: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,429 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-05-03 15:29:25,432 INFO L550 ElimStorePlain]: Start of recursive call 494: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,497 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 215 treesize of output 62 [2021-05-03 15:29:25,499 INFO L550 ElimStorePlain]: Start of recursive call 495: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,559 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 211 treesize of output 58 [2021-05-03 15:29:25,562 INFO L550 ElimStorePlain]: Start of recursive call 496: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,620 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:29:25,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 68 [2021-05-03 15:29:25,624 INFO L550 ElimStorePlain]: Start of recursive call 497: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,683 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 58 [2021-05-03 15:29:25,687 INFO L550 ElimStorePlain]: Start of recursive call 498: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,743 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 57 [2021-05-03 15:29:25,746 INFO L550 ElimStorePlain]: Start of recursive call 499: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,802 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 224 treesize of output 63 [2021-05-03 15:29:25,804 INFO L550 ElimStorePlain]: Start of recursive call 500: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,861 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 222 treesize of output 61 [2021-05-03 15:29:25,863 INFO L550 ElimStorePlain]: Start of recursive call 501: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,919 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 201 treesize of output 56 [2021-05-03 15:29:25,921 INFO L550 ElimStorePlain]: Start of recursive call 502: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:25,977 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:25,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 223 treesize of output 64 [2021-05-03 15:29:25,980 INFO L550 ElimStorePlain]: Start of recursive call 503: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:26,036 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:26,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 52 [2021-05-03 15:29:26,038 INFO L550 ElimStorePlain]: Start of recursive call 504: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:26,045 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:29:26,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 219 treesize of output 62 [2021-05-03 15:29:26,047 INFO L550 ElimStorePlain]: Start of recursive call 505: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:26,050 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:29:26,051 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:29:26,051 INFO L247 ElimStorePlain]: Needed 505 recursive calls to eliminate 2 variables, input treesize:102913, output treesize:3 [2021-05-03 15:29:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:29:26,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:29:26,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-05-03 15:29:26,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941725127] [2021-05-03 15:29:26,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:29:26,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:29:26,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:29:26,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:29:26,069 INFO L87 Difference]: Start difference. First operand 49976 states and 127041 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:26,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:29:26,758 INFO L93 Difference]: Finished difference Result 52344 states and 132850 transitions. [2021-05-03 15:29:26,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 15:29:26,760 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 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 42 [2021-05-03 15:29:26,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:29:26,991 INFO L225 Difference]: With dead ends: 52344 [2021-05-03 15:29:26,992 INFO L226 Difference]: Without dead ends: 52328 [2021-05-03 15:29:26,992 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 640.8ms TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:29:27,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52328 states. [2021-05-03 15:29:27,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52328 to 51480. [2021-05-03 15:29:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51480 states, 51479 states have (on average 2.547854464927446) internal successors, (131161), 51479 states have internal predecessors, (131161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51480 states to 51480 states and 131161 transitions. [2021-05-03 15:29:27,842 INFO L78 Accepts]: Start accepts. Automaton has 51480 states and 131161 transitions. Word has length 42 [2021-05-03 15:29:27,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:29:27,842 INFO L480 AbstractCegarLoop]: Abstraction has 51480 states and 131161 transitions. [2021-05-03 15:29:27,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:27,842 INFO L276 IsEmpty]: Start isEmpty. Operand 51480 states and 131161 transitions. [2021-05-03 15:29:27,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-03 15:29:27,874 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:29:27,874 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:29:28,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 138 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable4305 [2021-05-03 15:29:28,075 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:29:28,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:29:28,079 INFO L82 PathProgramCache]: Analyzing trace with hash 848508788, now seen corresponding path program 138 times [2021-05-03 15:29:28,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:29:28,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752140619] [2021-05-03 15:29:28,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:29:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:29:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:29:28,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752140619] [2021-05-03 15:29:28,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526345084] [2021-05-03 15:29:28,162 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 139 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 139 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:29:28,190 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-05-03 15:29:28,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:29:28,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 55 conjunts are in the unsatisfiable core [2021-05-03 15:29:28,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:29:28,823 INFO L446 ElimStorePlain]: Different costs {28=[f], 66=[f_inv]} [2021-05-03 15:29:29,137 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 66 [2021-05-03 15:29:29,138 INFO L354 Elim1Store]: treesize reduction 125, result has 44.4 percent of original size [2021-05-03 15:29:29,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 264 treesize of output 208 [2021-05-03 15:29:34,110 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:29:34,327 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-05-03 15:29:34,327 INFO L628 ElimStorePlain]: treesize reduction 17, result has 96.5 percent of original size [2021-05-03 15:29:34,475 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-05-03 15:29:34,476 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:29:34,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 465 treesize of output 289 [2021-05-03 15:29:35,041 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:35,043 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:29:35,044 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:29:35,044 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:264, output treesize:3 [2021-05-03 15:29:35,061 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:29:35,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:29:35,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-05-03 15:29:35,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426370817] [2021-05-03 15:29:35,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:29:35,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:29:35,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:29:35,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:29:35,062 INFO L87 Difference]: Start difference. First operand 51480 states and 131161 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:35,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:29:35,761 INFO L93 Difference]: Finished difference Result 53250 states and 135691 transitions. [2021-05-03 15:29:35,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-03 15:29:35,762 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 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 42 [2021-05-03 15:29:35,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:29:35,917 INFO L225 Difference]: With dead ends: 53250 [2021-05-03 15:29:35,917 INFO L226 Difference]: Without dead ends: 53232 [2021-05-03 15:29:35,917 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 604.8ms TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:29:35,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53232 states. [2021-05-03 15:29:36,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53232 to 52433. [2021-05-03 15:29:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52433 states, 52432 states have (on average 2.5524679584986267) internal successors, (133831), 52432 states have internal predecessors, (133831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52433 states to 52433 states and 133831 transitions. [2021-05-03 15:29:36,627 INFO L78 Accepts]: Start accepts. Automaton has 52433 states and 133831 transitions. Word has length 42 [2021-05-03 15:29:36,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:29:36,627 INFO L480 AbstractCegarLoop]: Abstraction has 52433 states and 133831 transitions. [2021-05-03 15:29:36,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:36,627 INFO L276 IsEmpty]: Start isEmpty. Operand 52433 states and 133831 transitions. [2021-05-03 15:29:36,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-03 15:29:36,658 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:29:36,658 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:29:36,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4742,139 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:29:36,867 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:29:36,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:29:36,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1524801932, now seen corresponding path program 139 times [2021-05-03 15:29:36,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:29:36,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794183460] [2021-05-03 15:29:36,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:29:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:29:36,956 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:29:36,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794183460] [2021-05-03 15:29:36,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796566233] [2021-05-03 15:29:36,956 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 140 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 140 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:29:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:29:36,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-05-03 15:29:36,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:29:37,741 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 73 [2021-05-03 15:29:37,742 INFO L354 Elim1Store]: treesize reduction 355, result has 34.4 percent of original size [2021-05-03 15:29:37,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 16 new quantified variables, introduced 45 case distinctions, treesize of input 207 treesize of output 246 [2021-05-03 15:29:37,746 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:37,844 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:29:37,846 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:29:37,846 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:207, output treesize:318 [2021-05-03 15:29:38,055 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-05-03 15:29:39,429 WARN L205 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 50 [2021-05-03 15:29:39,577 INFO L446 ElimStorePlain]: Different costs {6=[v_prenex_138], 10=[f], 15=[v_prenex_139], 21=[v_prenex_137]} [2021-05-03 15:29:39,619 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:29:39,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-05-03 15:29:39,642 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:39,656 INFO L628 ElimStorePlain]: treesize reduction 238, result has 1.2 percent of original size [2021-05-03 15:29:39,657 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-05-03 15:29:39,657 INFO L518 ElimStorePlain]: Eliminatee v_prenex_139 vanished before elimination [2021-05-03 15:29:39,657 INFO L518 ElimStorePlain]: Eliminatee v_prenex_137 vanished before elimination [2021-05-03 15:29:39,657 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:29:39,657 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:261, output treesize:3 [2021-05-03 15:29:39,674 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:29:39,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:29:39,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-05-03 15:29:39,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580539382] [2021-05-03 15:29:39,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:29:39,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:29:39,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:29:39,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:29:39,675 INFO L87 Difference]: Start difference. First operand 52433 states and 133831 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:29:40,733 INFO L93 Difference]: Finished difference Result 54975 states and 140281 transitions. [2021-05-03 15:29:40,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 15:29:40,734 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 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 42 [2021-05-03 15:29:40,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:29:40,820 INFO L225 Difference]: With dead ends: 54975 [2021-05-03 15:29:40,820 INFO L226 Difference]: Without dead ends: 54946 [2021-05-03 15:29:40,820 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1618.2ms TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:29:40,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54946 states. [2021-05-03 15:29:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54946 to 53500. [2021-05-03 15:29:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53500 states, 53499 states have (on average 2.556926297687807) internal successors, (136793), 53499 states have internal predecessors, (136793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53500 states to 53500 states and 136793 transitions. [2021-05-03 15:29:41,859 INFO L78 Accepts]: Start accepts. Automaton has 53500 states and 136793 transitions. Word has length 42 [2021-05-03 15:29:41,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:29:41,859 INFO L480 AbstractCegarLoop]: Abstraction has 53500 states and 136793 transitions. [2021-05-03 15:29:41,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:41,859 INFO L276 IsEmpty]: Start isEmpty. Operand 53500 states and 136793 transitions. [2021-05-03 15:29:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-03 15:29:42,024 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:29:42,024 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:29:42,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 140 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6037 [2021-05-03 15:29:42,225 INFO L428 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:29:42,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:29:42,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1648769676, now seen corresponding path program 140 times [2021-05-03 15:29:42,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:29:42,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019172786] [2021-05-03 15:29:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:29:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:29:42,313 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:29:42,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019172786] [2021-05-03 15:29:42,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635982088] [2021-05-03 15:29:42,313 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 141 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 141 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:29:42,337 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:29:42,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:29:42,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-05-03 15:29:42,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:29:42,538 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-05-03 15:29:43,033 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 71 [2021-05-03 15:29:43,034 INFO L354 Elim1Store]: treesize reduction 238, result has 38.2 percent of original size [2021-05-03 15:29:43,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 15 new quantified variables, introduced 36 case distinctions, treesize of input 205 treesize of output 203 [2021-05-03 15:29:43,038 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:43,141 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-05-03 15:29:43,142 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:29:43,143 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:29:43,143 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:205, output treesize:260 [2021-05-03 15:29:43,283 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-05-03 15:29:43,341 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-05-03 15:29:44,509 WARN L205 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 51 [2021-05-03 15:29:44,869 INFO L446 ElimStorePlain]: Different costs {6=[v_prenex_141], 10=[f], 15=[v_prenex_142], 21=[v_prenex_140]} [2021-05-03 15:29:44,917 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:29:44,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-05-03 15:29:44,921 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:29:44,937 INFO L628 ElimStorePlain]: treesize reduction 214, result has 1.4 percent of original size [2021-05-03 15:29:44,937 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-05-03 15:29:44,937 INFO L518 ElimStorePlain]: Eliminatee v_prenex_142 vanished before elimination [2021-05-03 15:29:44,937 INFO L518 ElimStorePlain]: Eliminatee v_prenex_140 vanished before elimination [2021-05-03 15:29:44,938 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:29:44,938 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:237, output treesize:3 [2021-05-03 15:29:44,956 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:29:44,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:29:44,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-05-03 15:29:44,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951471035] [2021-05-03 15:29:44,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:29:44,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:29:44,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:29:44,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:29:44,957 INFO L87 Difference]: Start difference. First operand 53500 states and 136793 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:46,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:29:46,109 INFO L93 Difference]: Finished difference Result 56192 states and 143625 transitions. [2021-05-03 15:29:46,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 15:29:46,110 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 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 42 [2021-05-03 15:29:46,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:29:46,216 INFO L225 Difference]: With dead ends: 56192 [2021-05-03 15:29:46,216 INFO L226 Difference]: Without dead ends: 56159 [2021-05-03 15:29:46,217 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1756.8ms TimeCoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:29:46,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56159 states. [2021-05-03 15:29:47,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56159 to 54544. [2021-05-03 15:29:47,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54544 states, 54543 states have (on average 2.5606402288102963) internal successors, (139665), 54543 states have internal predecessors, (139665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:47,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54544 states to 54544 states and 139665 transitions. [2021-05-03 15:29:47,369 INFO L78 Accepts]: Start accepts. Automaton has 54544 states and 139665 transitions. Word has length 42 [2021-05-03 15:29:47,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:29:47,369 INFO L480 AbstractCegarLoop]: Abstraction has 54544 states and 139665 transitions. [2021-05-03 15:29:47,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:29:47,369 INFO L276 IsEmpty]: Start isEmpty. Operand 54544 states and 139665 transitions. [2021-05-03 15:29:47,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-03 15:29:47,403 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:29:47,403 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:29:47,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6070,141 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:29:47,603 INFO L428 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:29:47,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:29:47,604 INFO L82 PathProgramCache]: Analyzing trace with hash -522687372, now seen corresponding path program 141 times [2021-05-03 15:29:47,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:29:47,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598901990] [2021-05-03 15:29:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:29:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:29:47,692 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:29:47,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598901990] [2021-05-03 15:29:47,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774158286] [2021-05-03 15:29:47,693 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 142 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 142 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:29:47,721 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-05-03 15:29:47,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:29:47,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 53 conjunts are in the unsatisfiable core [2021-05-03 15:29:47,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:29:48,590 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 70 [2021-05-03 15:29:48,591 INFO L354 Elim1Store]: treesize reduction 211, result has 37.4 percent of original size [2021-05-03 15:29:48,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 258 treesize of output 208 [2021-05-03 15:29:51,712 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:29:51,842 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-05-03 15:29:51,843 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:29:53,203 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:29:53,204 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:258, output treesize:343 [2021-05-03 15:29:56,042 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-05-03 15:29:56,492 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 404 [2021-05-03 15:29:57,189 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 835 [2021-05-03 15:29:57,528 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 835 [2021-05-03 15:29:58,185 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 835 [2021-05-03 15:30:08,118 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-05-03 15:30:08,323 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:08,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 55 [2021-05-03 15:30:08,326 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:08,444 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:08,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-05-03 15:30:08,448 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:08,583 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:08,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:08,586 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:08,709 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:08,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-05-03 15:30:08,711 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:08,836 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:08,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:08,839 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:08,931 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:08,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 186 treesize of output 51 [2021-05-03 15:30:08,934 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:09,058 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:09,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:09,061 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:09,192 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:09,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:09,195 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:09,292 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:09,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 192 treesize of output 57 [2021-05-03 15:30:09,295 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:09,430 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:09,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 1 [2021-05-03 15:30:09,431 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:09,559 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:09,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:09,561 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:09,693 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:09,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 1 [2021-05-03 15:30:09,695 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:09,834 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:09,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 1 [2021-05-03 15:30:09,836 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:09,961 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:09,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:09,964 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:10,092 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:10,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:10,095 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:10,191 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:10,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-05-03 15:30:10,194 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:10,297 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:10,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 55 [2021-05-03 15:30:10,300 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:10,430 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:10,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 200 treesize of output 63 [2021-05-03 15:30:10,433 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:10,532 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:10,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 54 [2021-05-03 15:30:10,535 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:10,665 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:10,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-05-03 15:30:10,669 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:10,795 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:10,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:10,798 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:10,914 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:10,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:10,916 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:11,004 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:11,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 180 treesize of output 57 [2021-05-03 15:30:11,006 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:11,110 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:11,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:11,113 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:11,231 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:11,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 61 [2021-05-03 15:30:11,233 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:11,392 INFO L244 Elim1Store]: Index analysis took 111 ms [2021-05-03 15:30:11,407 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:11,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-05-03 15:30:11,412 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:11,548 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-05-03 15:30:11,558 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:11,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:11,561 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:11,668 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:11,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-05-03 15:30:11,671 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:11,788 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:11,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:11,791 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:11,915 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:11,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:11,918 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:12,043 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:12,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:12,046 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:12,133 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:12,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 51 [2021-05-03 15:30:12,135 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:12,253 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:12,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:12,255 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:12,382 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:12,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:12,385 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:12,491 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:12,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-05-03 15:30:12,494 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:12,605 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:12,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 199 treesize of output 56 [2021-05-03 15:30:12,608 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:12,742 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:12,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-05-03 15:30:12,745 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:12,884 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:12,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:12,887 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:13,024 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:13,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:13,027 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:13,167 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:13,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:13,170 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:13,314 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:13,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:13,317 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:13,461 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:13,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:13,464 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:13,606 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:13,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 60 [2021-05-03 15:30:13,609 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:13,750 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:13,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:13,753 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:13,889 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:13,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:13,893 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:14,030 INFO L244 Elim1Store]: Index analysis took 105 ms [2021-05-03 15:30:14,043 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:14,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:14,046 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:14,147 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:14,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 202 treesize of output 59 [2021-05-03 15:30:14,150 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:14,290 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:14,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:14,293 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:14,433 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:14,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:14,436 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:14,566 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:14,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 68 [2021-05-03 15:30:14,569 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:14,668 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:14,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 55 [2021-05-03 15:30:14,671 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:14,802 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:14,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:14,804 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:14,937 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:14,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:14,941 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:15,079 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:15,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:15,082 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:15,185 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:15,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 194 treesize of output 55 [2021-05-03 15:30:15,188 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:15,331 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:15,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 62 [2021-05-03 15:30:15,334 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:15,470 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:15,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 66 [2021-05-03 15:30:15,472 INFO L550 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:15,613 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:15,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:15,616 INFO L550 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:15,724 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:15,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 53 [2021-05-03 15:30:15,726 INFO L550 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:15,859 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:15,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:15,862 INFO L550 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:16,012 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:16,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:16,014 INFO L550 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:16,136 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:16,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 61 [2021-05-03 15:30:16,139 INFO L550 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:16,247 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:16,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-05-03 15:30:16,250 INFO L550 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:16,374 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:16,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:16,377 INFO L550 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:16,519 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:16,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:16,521 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:16,631 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:16,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 176 treesize of output 49 [2021-05-03 15:30:16,634 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:16,778 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:16,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-05-03 15:30:16,780 INFO L550 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:16,923 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:16,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:16,927 INFO L550 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:17,066 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-05-03 15:30:17,083 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:17,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:17,087 INFO L550 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:17,227 INFO L244 Elim1Store]: Index analysis took 103 ms [2021-05-03 15:30:17,245 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:17,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:17,248 INFO L550 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:17,392 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:17,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:17,395 INFO L550 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:17,543 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:17,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:17,546 INFO L550 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:17,682 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:17,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:17,685 INFO L550 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:17,834 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:17,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:17,837 INFO L550 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:17,977 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:17,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:17,980 INFO L550 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:18,094 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:18,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 187 treesize of output 58 [2021-05-03 15:30:18,097 INFO L550 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:18,244 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:18,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:18,247 INFO L550 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:18,399 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:18,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:18,403 INFO L550 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:18,566 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:18,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 70 [2021-05-03 15:30:18,569 INFO L550 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:18,715 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:18,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:18,718 INFO L550 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:18,832 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:18,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 187 treesize of output 56 [2021-05-03 15:30:18,835 INFO L550 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:18,976 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:18,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:18,979 INFO L550 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:19,114 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:19,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:19,117 INFO L550 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:19,253 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:19,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:19,256 INFO L550 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:19,395 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:19,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:19,398 INFO L550 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:19,533 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:19,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:19,536 INFO L550 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:19,640 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:19,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 192 treesize of output 57 [2021-05-03 15:30:19,643 INFO L550 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:19,779 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:19,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:19,782 INFO L550 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:19,897 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:19,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 189 treesize of output 56 [2021-05-03 15:30:19,900 INFO L550 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:20,042 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:20,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:20,045 INFO L550 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:20,186 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:20,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:20,189 INFO L550 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:20,334 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:20,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:20,337 INFO L550 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:20,488 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:20,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:20,492 INFO L550 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:20,637 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:20,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:20,641 INFO L550 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:20,755 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:20,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 190 treesize of output 61 [2021-05-03 15:30:20,758 INFO L550 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:20,914 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:20,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-05-03 15:30:20,917 INFO L550 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:21,066 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-05-03 15:30:21,087 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:21,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 61 [2021-05-03 15:30:21,090 INFO L550 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:21,235 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-05-03 15:30:21,256 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:21,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-05-03 15:30:21,259 INFO L550 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:21,390 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:21,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:21,392 INFO L550 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:21,505 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:21,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:21,507 INFO L550 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:21,617 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:21,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:21,619 INFO L550 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:21,764 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:21,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:21,768 INFO L550 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:21,919 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:21,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-05-03 15:30:21,922 INFO L550 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:22,047 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:22,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 199 treesize of output 58 [2021-05-03 15:30:22,050 INFO L550 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:22,209 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:22,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 69 [2021-05-03 15:30:22,212 INFO L550 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:22,364 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:22,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:22,366 INFO L550 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:22,525 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:22,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:22,528 INFO L550 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:22,674 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-05-03 15:30:22,696 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:22,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:22,700 INFO L550 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:22,825 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:22,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 192 treesize of output 59 [2021-05-03 15:30:22,829 INFO L550 ElimStorePlain]: Start of recursive call 110: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:22,956 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:22,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-05-03 15:30:22,958 INFO L550 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:23,113 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:23,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:23,116 INFO L550 ElimStorePlain]: Start of recursive call 112: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:23,270 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:23,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:23,273 INFO L550 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:23,422 INFO L244 Elim1Store]: Index analysis took 104 ms [2021-05-03 15:30:23,444 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:23,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 69 [2021-05-03 15:30:23,447 INFO L550 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:23,580 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:23,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 212 treesize of output 63 [2021-05-03 15:30:23,583 INFO L550 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:23,738 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:23,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:23,741 INFO L550 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:23,889 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:23,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 61 [2021-05-03 15:30:23,892 INFO L550 ElimStorePlain]: Start of recursive call 117: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:24,047 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:24,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:24,051 INFO L550 ElimStorePlain]: Start of recursive call 118: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:24,218 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:24,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:24,221 INFO L550 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:24,369 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-05-03 15:30:24,391 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:24,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:24,394 INFO L550 ElimStorePlain]: Start of recursive call 120: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:24,555 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:24,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:24,558 INFO L550 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:24,713 INFO L244 Elim1Store]: Index analysis took 109 ms [2021-05-03 15:30:24,735 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:24,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:24,739 INFO L550 ElimStorePlain]: Start of recursive call 122: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:24,905 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:24,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-05-03 15:30:24,909 INFO L550 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:25,057 INFO L244 Elim1Store]: Index analysis took 103 ms [2021-05-03 15:30:25,079 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:25,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:25,082 INFO L550 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:25,215 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:25,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 54 [2021-05-03 15:30:25,218 INFO L550 ElimStorePlain]: Start of recursive call 125: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:25,376 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-05-03 15:30:25,399 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:25,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:25,403 INFO L550 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:25,563 INFO L244 Elim1Store]: Index analysis took 113 ms [2021-05-03 15:30:25,587 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:25,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:25,591 INFO L550 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:25,749 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:25,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:25,753 INFO L550 ElimStorePlain]: Start of recursive call 128: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:25,921 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:25,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:25,924 INFO L550 ElimStorePlain]: Start of recursive call 129: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:26,074 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:26,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:26,077 INFO L550 ElimStorePlain]: Start of recursive call 130: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:26,232 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:26,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:26,235 INFO L550 ElimStorePlain]: Start of recursive call 131: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:26,387 INFO L244 Elim1Store]: Index analysis took 105 ms [2021-05-03 15:30:26,411 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:26,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:26,414 INFO L550 ElimStorePlain]: Start of recursive call 132: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:26,575 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:26,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-05-03 15:30:26,579 INFO L550 ElimStorePlain]: Start of recursive call 133: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:26,706 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:26,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 194 treesize of output 57 [2021-05-03 15:30:26,709 INFO L550 ElimStorePlain]: Start of recursive call 134: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:26,843 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:26,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 62 [2021-05-03 15:30:26,845 INFO L550 ElimStorePlain]: Start of recursive call 135: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:26,970 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:26,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:26,972 INFO L550 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:27,125 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:27,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:27,129 INFO L550 ElimStorePlain]: Start of recursive call 137: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:27,298 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:27,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-05-03 15:30:27,302 INFO L550 ElimStorePlain]: Start of recursive call 138: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:27,470 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:27,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:27,473 INFO L550 ElimStorePlain]: Start of recursive call 139: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:27,644 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:27,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 200 treesize of output 67 [2021-05-03 15:30:27,647 INFO L550 ElimStorePlain]: Start of recursive call 140: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:27,823 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:27,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 200 treesize of output 65 [2021-05-03 15:30:27,826 INFO L550 ElimStorePlain]: Start of recursive call 141: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:28,014 INFO L244 Elim1Store]: Index analysis took 138 ms [2021-05-03 15:30:28,022 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:28,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:28,026 INFO L550 ElimStorePlain]: Start of recursive call 142: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:28,135 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:28,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:28,139 INFO L550 ElimStorePlain]: Start of recursive call 143: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:28,250 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:28,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:28,253 INFO L550 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:28,367 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:28,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:28,370 INFO L550 ElimStorePlain]: Start of recursive call 145: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:28,493 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:28,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:28,496 INFO L550 ElimStorePlain]: Start of recursive call 146: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:28,613 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:28,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:28,615 INFO L550 ElimStorePlain]: Start of recursive call 147: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:28,734 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:28,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:28,738 INFO L550 ElimStorePlain]: Start of recursive call 148: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:28,857 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:28,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:28,861 INFO L550 ElimStorePlain]: Start of recursive call 149: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:28,987 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:28,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:28,991 INFO L550 ElimStorePlain]: Start of recursive call 150: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:29,078 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:29,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 189 treesize of output 54 [2021-05-03 15:30:29,081 INFO L550 ElimStorePlain]: Start of recursive call 151: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:29,193 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:29,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 200 treesize of output 65 [2021-05-03 15:30:29,196 INFO L550 ElimStorePlain]: Start of recursive call 152: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:29,313 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:29,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:29,316 INFO L550 ElimStorePlain]: Start of recursive call 153: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:29,429 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:29,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:29,432 INFO L550 ElimStorePlain]: Start of recursive call 154: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:29,554 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:29,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:29,557 INFO L550 ElimStorePlain]: Start of recursive call 155: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:29,670 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:29,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:29,673 INFO L550 ElimStorePlain]: Start of recursive call 156: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:29,793 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:29,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:29,796 INFO L550 ElimStorePlain]: Start of recursive call 157: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:29,886 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:29,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 62 [2021-05-03 15:30:29,888 INFO L550 ElimStorePlain]: Start of recursive call 158: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:29,981 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:29,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-05-03 15:30:29,983 INFO L550 ElimStorePlain]: Start of recursive call 159: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:30,068 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:30,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:30,071 INFO L550 ElimStorePlain]: Start of recursive call 160: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:30,167 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:30,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:30,171 INFO L550 ElimStorePlain]: Start of recursive call 161: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:30,301 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:30,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-05-03 15:30:30,304 INFO L550 ElimStorePlain]: Start of recursive call 162: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:30,419 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:30,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:30,422 INFO L550 ElimStorePlain]: Start of recursive call 163: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:30,537 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:30,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:30,539 INFO L550 ElimStorePlain]: Start of recursive call 164: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:30,657 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:30,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:30,659 INFO L550 ElimStorePlain]: Start of recursive call 165: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:30,781 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:30,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:30,785 INFO L550 ElimStorePlain]: Start of recursive call 166: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:30,917 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:30,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 59 [2021-05-03 15:30:30,920 INFO L550 ElimStorePlain]: Start of recursive call 167: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:31,049 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:31,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 62 [2021-05-03 15:30:31,052 INFO L550 ElimStorePlain]: Start of recursive call 168: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:31,175 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:31,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:31,179 INFO L550 ElimStorePlain]: Start of recursive call 169: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:31,300 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:31,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:31,303 INFO L550 ElimStorePlain]: Start of recursive call 170: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:31,422 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:31,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:31,425 INFO L550 ElimStorePlain]: Start of recursive call 171: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:31,544 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:31,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:31,547 INFO L550 ElimStorePlain]: Start of recursive call 172: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:31,665 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:31,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:31,668 INFO L550 ElimStorePlain]: Start of recursive call 173: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:31,782 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:31,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 61 [2021-05-03 15:30:31,785 INFO L550 ElimStorePlain]: Start of recursive call 174: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:31,909 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:31,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:31,913 INFO L550 ElimStorePlain]: Start of recursive call 175: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:32,036 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:32,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:32,040 INFO L550 ElimStorePlain]: Start of recursive call 176: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:32,172 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:32,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:32,175 INFO L550 ElimStorePlain]: Start of recursive call 177: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:32,270 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:32,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 181 treesize of output 50 [2021-05-03 15:30:32,272 INFO L550 ElimStorePlain]: Start of recursive call 178: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:32,395 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:32,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:32,398 INFO L550 ElimStorePlain]: Start of recursive call 179: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:32,489 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:32,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 196 treesize of output 55 [2021-05-03 15:30:32,492 INFO L550 ElimStorePlain]: Start of recursive call 180: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:32,613 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:32,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:32,616 INFO L550 ElimStorePlain]: Start of recursive call 181: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:32,747 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:32,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:32,751 INFO L550 ElimStorePlain]: Start of recursive call 182: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:32,871 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:32,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:32,874 INFO L550 ElimStorePlain]: Start of recursive call 183: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:33,006 INFO L244 Elim1Store]: Index analysis took 106 ms [2021-05-03 15:30:33,020 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:33,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:33,023 INFO L550 ElimStorePlain]: Start of recursive call 184: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:33,161 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:33,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:33,165 INFO L550 ElimStorePlain]: Start of recursive call 185: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:33,300 INFO L244 Elim1Store]: Index analysis took 109 ms [2021-05-03 15:30:33,314 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:33,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:33,317 INFO L550 ElimStorePlain]: Start of recursive call 186: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:33,460 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:33,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:33,463 INFO L550 ElimStorePlain]: Start of recursive call 187: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:33,579 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:33,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:33,582 INFO L550 ElimStorePlain]: Start of recursive call 188: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:33,713 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:33,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-05-03 15:30:33,717 INFO L550 ElimStorePlain]: Start of recursive call 189: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:33,850 INFO L244 Elim1Store]: Index analysis took 106 ms [2021-05-03 15:30:33,864 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:33,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-05-03 15:30:33,868 INFO L550 ElimStorePlain]: Start of recursive call 190: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:34,004 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:34,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:34,007 INFO L550 ElimStorePlain]: Start of recursive call 191: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:34,137 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:34,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:34,140 INFO L550 ElimStorePlain]: Start of recursive call 192: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:34,268 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-05-03 15:30:34,282 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:34,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-05-03 15:30:34,286 INFO L550 ElimStorePlain]: Start of recursive call 193: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:34,418 INFO L244 Elim1Store]: Index analysis took 105 ms [2021-05-03 15:30:34,432 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:34,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-05-03 15:30:34,436 INFO L550 ElimStorePlain]: Start of recursive call 194: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:34,575 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:34,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-05-03 15:30:34,579 INFO L550 ElimStorePlain]: Start of recursive call 195: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:34,711 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:34,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:34,714 INFO L550 ElimStorePlain]: Start of recursive call 196: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:34,816 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:34,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 53 [2021-05-03 15:30:34,819 INFO L550 ElimStorePlain]: Start of recursive call 197: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:34,957 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:34,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 60 [2021-05-03 15:30:34,960 INFO L550 ElimStorePlain]: Start of recursive call 198: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:35,095 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:35,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:35,098 INFO L550 ElimStorePlain]: Start of recursive call 199: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:35,247 INFO L244 Elim1Store]: Index analysis took 121 ms [2021-05-03 15:30:35,265 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:35,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:35,269 INFO L550 ElimStorePlain]: Start of recursive call 200: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:35,434 INFO L244 Elim1Store]: Index analysis took 130 ms [2021-05-03 15:30:35,451 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:35,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:35,455 INFO L550 ElimStorePlain]: Start of recursive call 201: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:35,600 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:35,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-05-03 15:30:35,603 INFO L550 ElimStorePlain]: Start of recursive call 202: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:35,735 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:35,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:35,739 INFO L550 ElimStorePlain]: Start of recursive call 203: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:35,876 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:35,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:35,879 INFO L550 ElimStorePlain]: Start of recursive call 204: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:36,017 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:36,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:36,021 INFO L550 ElimStorePlain]: Start of recursive call 205: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:36,160 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:36,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:36,163 INFO L550 ElimStorePlain]: Start of recursive call 206: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:36,266 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:36,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 54 [2021-05-03 15:30:36,269 INFO L550 ElimStorePlain]: Start of recursive call 207: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:36,418 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:36,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:36,422 INFO L550 ElimStorePlain]: Start of recursive call 208: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:36,540 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:36,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:36,542 INFO L550 ElimStorePlain]: Start of recursive call 209: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:36,646 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:36,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:36,648 INFO L550 ElimStorePlain]: Start of recursive call 210: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:36,741 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:36,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:36,743 INFO L550 ElimStorePlain]: Start of recursive call 211: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:36,838 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:36,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-05-03 15:30:36,841 INFO L550 ElimStorePlain]: Start of recursive call 212: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:36,972 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-05-03 15:30:36,987 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:36,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-05-03 15:30:36,991 INFO L550 ElimStorePlain]: Start of recursive call 213: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:37,130 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:37,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 69 [2021-05-03 15:30:37,134 INFO L550 ElimStorePlain]: Start of recursive call 214: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:37,271 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:37,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-05-03 15:30:37,274 INFO L550 ElimStorePlain]: Start of recursive call 215: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:37,407 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:37,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:37,410 INFO L550 ElimStorePlain]: Start of recursive call 216: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:37,537 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:37,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:37,541 INFO L550 ElimStorePlain]: Start of recursive call 217: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:37,646 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:37,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 197 treesize of output 58 [2021-05-03 15:30:37,650 INFO L550 ElimStorePlain]: Start of recursive call 218: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:37,790 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:37,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:37,793 INFO L550 ElimStorePlain]: Start of recursive call 219: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:37,932 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:37,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 60 [2021-05-03 15:30:37,935 INFO L550 ElimStorePlain]: Start of recursive call 220: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:38,075 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:38,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:38,078 INFO L550 ElimStorePlain]: Start of recursive call 221: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:38,216 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:38,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:38,219 INFO L550 ElimStorePlain]: Start of recursive call 222: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:38,351 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:38,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:38,354 INFO L550 ElimStorePlain]: Start of recursive call 223: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:38,490 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:38,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:38,493 INFO L550 ElimStorePlain]: Start of recursive call 224: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:38,634 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:38,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:38,637 INFO L550 ElimStorePlain]: Start of recursive call 225: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:38,785 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:38,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-05-03 15:30:38,790 INFO L550 ElimStorePlain]: Start of recursive call 226: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:38,922 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:38,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 53 [2021-05-03 15:30:38,926 INFO L550 ElimStorePlain]: Start of recursive call 227: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:39,085 INFO L244 Elim1Store]: Index analysis took 123 ms [2021-05-03 15:30:39,104 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:39,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:39,110 INFO L550 ElimStorePlain]: Start of recursive call 228: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:39,249 INFO L244 Elim1Store]: Index analysis took 105 ms [2021-05-03 15:30:39,265 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:39,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:39,268 INFO L550 ElimStorePlain]: Start of recursive call 229: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:39,411 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:39,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:39,415 INFO L550 ElimStorePlain]: Start of recursive call 230: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:39,548 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:39,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:39,552 INFO L550 ElimStorePlain]: Start of recursive call 231: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:39,678 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:39,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:39,681 INFO L550 ElimStorePlain]: Start of recursive call 232: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:39,813 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:39,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-05-03 15:30:39,816 INFO L550 ElimStorePlain]: Start of recursive call 233: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:39,945 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:39,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:39,948 INFO L550 ElimStorePlain]: Start of recursive call 234: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:40,046 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:40,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-05-03 15:30:40,049 INFO L550 ElimStorePlain]: Start of recursive call 235: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:40,139 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:40,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 54 [2021-05-03 15:30:40,142 INFO L550 ElimStorePlain]: Start of recursive call 236: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:40,272 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:40,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:40,276 INFO L550 ElimStorePlain]: Start of recursive call 237: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:40,382 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:40,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 194 treesize of output 55 [2021-05-03 15:30:40,385 INFO L550 ElimStorePlain]: Start of recursive call 238: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:40,515 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:40,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:40,518 INFO L550 ElimStorePlain]: Start of recursive call 239: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:40,659 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:40,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:40,664 INFO L550 ElimStorePlain]: Start of recursive call 240: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:40,799 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:40,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 60 [2021-05-03 15:30:40,802 INFO L550 ElimStorePlain]: Start of recursive call 241: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:40,936 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:40,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:40,939 INFO L550 ElimStorePlain]: Start of recursive call 242: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:41,074 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:41,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:41,077 INFO L550 ElimStorePlain]: Start of recursive call 243: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:41,172 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:41,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 60 [2021-05-03 15:30:41,175 INFO L550 ElimStorePlain]: Start of recursive call 244: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:41,303 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:41,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 66 [2021-05-03 15:30:41,305 INFO L550 ElimStorePlain]: Start of recursive call 245: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:41,440 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:41,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:41,444 INFO L550 ElimStorePlain]: Start of recursive call 246: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:41,572 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:41,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:41,575 INFO L550 ElimStorePlain]: Start of recursive call 247: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:41,704 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:41,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:41,707 INFO L550 ElimStorePlain]: Start of recursive call 248: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:41,835 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:41,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:41,838 INFO L550 ElimStorePlain]: Start of recursive call 249: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:41,966 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:41,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:41,969 INFO L550 ElimStorePlain]: Start of recursive call 250: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:42,099 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:42,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:42,102 INFO L550 ElimStorePlain]: Start of recursive call 251: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:42,234 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:42,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:42,237 INFO L550 ElimStorePlain]: Start of recursive call 252: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:42,368 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:42,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:42,370 INFO L550 ElimStorePlain]: Start of recursive call 253: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:42,499 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:42,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-05-03 15:30:42,502 INFO L550 ElimStorePlain]: Start of recursive call 254: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:42,641 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:42,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-05-03 15:30:42,645 INFO L550 ElimStorePlain]: Start of recursive call 255: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:42,770 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:42,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:42,773 INFO L550 ElimStorePlain]: Start of recursive call 256: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:42,899 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:42,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:42,902 INFO L550 ElimStorePlain]: Start of recursive call 257: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:43,027 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:43,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:43,030 INFO L550 ElimStorePlain]: Start of recursive call 258: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:43,159 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:43,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 66 [2021-05-03 15:30:43,162 INFO L550 ElimStorePlain]: Start of recursive call 259: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:43,297 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:43,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:43,300 INFO L550 ElimStorePlain]: Start of recursive call 260: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:43,403 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:43,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 175 treesize of output 56 [2021-05-03 15:30:43,406 INFO L550 ElimStorePlain]: Start of recursive call 261: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:43,539 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:43,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:43,542 INFO L550 ElimStorePlain]: Start of recursive call 262: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:43,650 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:43,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 197 treesize of output 60 [2021-05-03 15:30:43,653 INFO L550 ElimStorePlain]: Start of recursive call 263: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:43,758 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:43,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:43,761 INFO L550 ElimStorePlain]: Start of recursive call 264: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:43,865 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:43,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:43,867 INFO L550 ElimStorePlain]: Start of recursive call 265: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:43,967 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:43,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:43,969 INFO L550 ElimStorePlain]: Start of recursive call 266: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:44,098 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:44,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:44,101 INFO L550 ElimStorePlain]: Start of recursive call 267: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:44,232 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-05-03 15:30:44,248 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:44,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:44,251 INFO L550 ElimStorePlain]: Start of recursive call 268: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:44,385 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:44,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 68 [2021-05-03 15:30:44,388 INFO L550 ElimStorePlain]: Start of recursive call 269: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:44,490 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:44,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 173 treesize of output 58 [2021-05-03 15:30:44,494 INFO L550 ElimStorePlain]: Start of recursive call 270: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:44,599 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:44,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 194 treesize of output 57 [2021-05-03 15:30:44,603 INFO L550 ElimStorePlain]: Start of recursive call 271: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:44,745 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:44,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 68 [2021-05-03 15:30:44,748 INFO L550 ElimStorePlain]: Start of recursive call 272: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:44,880 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:44,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:44,882 INFO L550 ElimStorePlain]: Start of recursive call 273: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:45,020 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:45,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:45,024 INFO L550 ElimStorePlain]: Start of recursive call 274: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:45,161 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:45,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:45,165 INFO L550 ElimStorePlain]: Start of recursive call 275: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:45,285 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:45,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:45,289 INFO L550 ElimStorePlain]: Start of recursive call 276: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:45,434 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:45,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 62 [2021-05-03 15:30:45,437 INFO L550 ElimStorePlain]: Start of recursive call 277: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:45,580 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:45,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 68 [2021-05-03 15:30:45,583 INFO L550 ElimStorePlain]: Start of recursive call 278: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:45,723 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:45,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:45,727 INFO L550 ElimStorePlain]: Start of recursive call 279: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:45,876 INFO L244 Elim1Store]: Index analysis took 119 ms [2021-05-03 15:30:45,893 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:45,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:45,897 INFO L550 ElimStorePlain]: Start of recursive call 280: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:46,044 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:46,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:46,047 INFO L550 ElimStorePlain]: Start of recursive call 281: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:46,191 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:46,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:46,195 INFO L550 ElimStorePlain]: Start of recursive call 282: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:46,337 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:46,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-05-03 15:30:46,341 INFO L550 ElimStorePlain]: Start of recursive call 283: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:46,482 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:46,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:46,486 INFO L550 ElimStorePlain]: Start of recursive call 284: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:46,618 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-05-03 15:30:46,637 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:46,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:46,642 INFO L550 ElimStorePlain]: Start of recursive call 285: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:46,784 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-05-03 15:30:46,800 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:46,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:46,804 INFO L550 ElimStorePlain]: Start of recursive call 286: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:46,940 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:46,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:46,943 INFO L550 ElimStorePlain]: Start of recursive call 287: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:47,080 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:47,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:47,085 INFO L550 ElimStorePlain]: Start of recursive call 288: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:47,225 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:47,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 62 [2021-05-03 15:30:47,228 INFO L550 ElimStorePlain]: Start of recursive call 289: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:47,372 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:47,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:47,376 INFO L550 ElimStorePlain]: Start of recursive call 290: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:47,512 INFO L244 Elim1Store]: Index analysis took 104 ms [2021-05-03 15:30:47,528 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:47,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:47,532 INFO L550 ElimStorePlain]: Start of recursive call 291: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:47,669 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:47,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:47,673 INFO L550 ElimStorePlain]: Start of recursive call 292: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:47,811 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:47,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:47,814 INFO L550 ElimStorePlain]: Start of recursive call 293: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:47,983 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:47,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:47,986 INFO L550 ElimStorePlain]: Start of recursive call 294: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:48,087 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:48,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 66 [2021-05-03 15:30:48,090 INFO L550 ElimStorePlain]: Start of recursive call 295: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:48,188 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:48,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 68 [2021-05-03 15:30:48,191 INFO L550 ElimStorePlain]: Start of recursive call 296: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:48,297 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:48,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:48,300 INFO L550 ElimStorePlain]: Start of recursive call 297: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:48,399 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:48,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 62 [2021-05-03 15:30:48,403 INFO L550 ElimStorePlain]: Start of recursive call 298: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:48,514 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:48,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:48,517 INFO L550 ElimStorePlain]: Start of recursive call 299: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:48,628 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:48,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:48,631 INFO L550 ElimStorePlain]: Start of recursive call 300: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:48,731 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:48,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:48,734 INFO L550 ElimStorePlain]: Start of recursive call 301: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:48,837 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:48,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:48,840 INFO L550 ElimStorePlain]: Start of recursive call 302: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:48,942 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:48,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:48,945 INFO L550 ElimStorePlain]: Start of recursive call 303: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,019 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:49,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 209 treesize of output 60 [2021-05-03 15:30:49,022 INFO L550 ElimStorePlain]: Start of recursive call 304: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,089 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:49,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 52 [2021-05-03 15:30:49,092 INFO L550 ElimStorePlain]: Start of recursive call 305: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,194 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:49,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 65 [2021-05-03 15:30:49,197 INFO L550 ElimStorePlain]: Start of recursive call 306: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,309 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:49,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 63 [2021-05-03 15:30:49,312 INFO L550 ElimStorePlain]: Start of recursive call 307: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,414 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:49,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 67 [2021-05-03 15:30:49,417 INFO L550 ElimStorePlain]: Start of recursive call 308: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,523 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:49,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 62 [2021-05-03 15:30:49,527 INFO L550 ElimStorePlain]: Start of recursive call 309: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,609 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:49,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 199 treesize of output 56 [2021-05-03 15:30:49,613 INFO L550 ElimStorePlain]: Start of recursive call 310: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,723 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:49,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:49,727 INFO L550 ElimStorePlain]: Start of recursive call 311: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,826 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:49,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-05-03 15:30:49,829 INFO L550 ElimStorePlain]: Start of recursive call 312: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,898 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:49,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 181 treesize of output 50 [2021-05-03 15:30:49,901 INFO L550 ElimStorePlain]: Start of recursive call 313: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:49,990 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:49,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 64 [2021-05-03 15:30:49,994 INFO L550 ElimStorePlain]: Start of recursive call 314: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,068 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:50,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 174 treesize of output 51 [2021-05-03 15:30:50,071 INFO L550 ElimStorePlain]: Start of recursive call 315: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,138 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:50,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 67 [2021-05-03 15:30:50,140 INFO L550 ElimStorePlain]: Start of recursive call 316: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,203 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:50,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:50,205 INFO L550 ElimStorePlain]: Start of recursive call 317: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,270 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:50,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 60 [2021-05-03 15:30:50,272 INFO L550 ElimStorePlain]: Start of recursive call 318: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,328 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:50,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 64 [2021-05-03 15:30:50,330 INFO L550 ElimStorePlain]: Start of recursive call 319: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,374 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:50,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 54 [2021-05-03 15:30:50,377 INFO L550 ElimStorePlain]: Start of recursive call 320: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,429 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:50,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 175 treesize of output 56 [2021-05-03 15:30:50,433 INFO L550 ElimStorePlain]: Start of recursive call 321: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,539 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:50,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-05-03 15:30:50,542 INFO L550 ElimStorePlain]: Start of recursive call 322: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,645 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:50,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 64 [2021-05-03 15:30:50,648 INFO L550 ElimStorePlain]: Start of recursive call 323: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,758 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:50,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:50,763 INFO L550 ElimStorePlain]: Start of recursive call 324: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,873 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:50,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 195 treesize of output 66 [2021-05-03 15:30:50,876 INFO L550 ElimStorePlain]: Start of recursive call 325: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:50,953 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:50,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 55 [2021-05-03 15:30:50,956 INFO L550 ElimStorePlain]: Start of recursive call 326: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:51,066 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:51,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:51,069 INFO L550 ElimStorePlain]: Start of recursive call 327: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:51,182 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:51,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 69 [2021-05-03 15:30:51,187 INFO L550 ElimStorePlain]: Start of recursive call 328: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:51,278 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:51,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:51,281 INFO L550 ElimStorePlain]: Start of recursive call 329: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:51,354 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:30:51,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 180 treesize of output 57 [2021-05-03 15:30:51,357 INFO L550 ElimStorePlain]: Start of recursive call 330: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:51,459 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:51,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:51,463 INFO L550 ElimStorePlain]: Start of recursive call 331: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:51,557 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:51,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:51,561 INFO L550 ElimStorePlain]: Start of recursive call 332: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:51,659 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:51,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:51,662 INFO L550 ElimStorePlain]: Start of recursive call 333: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:51,767 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:51,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:51,770 INFO L550 ElimStorePlain]: Start of recursive call 334: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:51,870 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:51,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 61 [2021-05-03 15:30:51,874 INFO L550 ElimStorePlain]: Start of recursive call 335: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:51,981 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:51,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 65 [2021-05-03 15:30:51,984 INFO L550 ElimStorePlain]: Start of recursive call 336: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:52,084 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:52,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 185 treesize of output 66 [2021-05-03 15:30:52,087 INFO L550 ElimStorePlain]: Start of recursive call 337: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:52,186 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:52,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:52,189 INFO L550 ElimStorePlain]: Start of recursive call 338: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:52,288 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:52,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 180 treesize of output 63 [2021-05-03 15:30:52,291 INFO L550 ElimStorePlain]: Start of recursive call 339: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:52,303 INFO L354 Elim1Store]: treesize reduction 168, result has 0.6 percent of original size [2021-05-03 15:30:52,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 62 [2021-05-03 15:30:52,306 INFO L550 ElimStorePlain]: Start of recursive call 340: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:52,341 INFO L628 ElimStorePlain]: treesize reduction 38, result has 7.3 percent of original size [2021-05-03 15:30:52,342 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:30:52,342 INFO L247 ElimStorePlain]: Needed 340 recursive calls to eliminate 2 variables, input treesize:63002, output treesize:3 [2021-05-03 15:30:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:30:52,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:30:52,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-05-03 15:30:52,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555175220] [2021-05-03 15:30:52,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:30:52,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:30:52,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:30:52,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-05-03 15:30:52,366 INFO L87 Difference]: Start difference. First operand 54544 states and 139665 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:30:53,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:30:53,592 INFO L93 Difference]: Finished difference Result 57076 states and 146192 transitions. [2021-05-03 15:30:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-03 15:30:53,594 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 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 42 [2021-05-03 15:30:53,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:30:53,721 INFO L225 Difference]: With dead ends: 57076 [2021-05-03 15:30:53,721 INFO L226 Difference]: Without dead ends: 57046 [2021-05-03 15:30:53,721 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 5226.5ms TimeCoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-05-03 15:30:53,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57046 states. [2021-05-03 15:30:54,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57046 to 55615. [2021-05-03 15:30:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55615 states, 55614 states have (on average 2.5645700722839573) internal successors, (142626), 55614 states have internal predecessors, (142626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:30:54,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55615 states to 55615 states and 142626 transitions. [2021-05-03 15:30:54,843 INFO L78 Accepts]: Start accepts. Automaton has 55615 states and 142626 transitions. Word has length 42 [2021-05-03 15:30:54,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:30:54,843 INFO L480 AbstractCegarLoop]: Abstraction has 55615 states and 142626 transitions. [2021-05-03 15:30:54,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:30:54,843 INFO L276 IsEmpty]: Start isEmpty. Operand 55615 states and 142626 transitions. [2021-05-03 15:30:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-03 15:30:54,879 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:30:54,879 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:30:55,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 142 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6088 [2021-05-03 15:30:55,080 INFO L428 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:30:55,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:30:55,081 INFO L82 PathProgramCache]: Analyzing trace with hash -689351820, now seen corresponding path program 142 times [2021-05-03 15:30:55,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:30:55,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033942360] [2021-05-03 15:30:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:30:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:30:55,196 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:30:55,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033942360] [2021-05-03 15:30:55,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327341345] [2021-05-03 15:30:55,196 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 143 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 143 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:30:55,221 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:30:55,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:30:55,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 45 conjunts are in the unsatisfiable core [2021-05-03 15:30:55,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:30:55,827 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-05-03 15:30:55,828 INFO L354 Elim1Store]: treesize reduction 72, result has 60.2 percent of original size [2021-05-03 15:30:55,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 177 treesize of output 163 [2021-05-03 15:30:55,834 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:30:55,981 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-05-03 15:30:55,982 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:30:55,984 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:30:55,984 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:177, output treesize:432 [2021-05-03 15:30:56,174 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-05-03 15:30:56,724 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-05-03 15:30:59,247 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-05-03 15:30:59,398 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-05-03 15:31:00,630 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 621 DAG size of output: 621 [2021-05-03 15:31:02,601 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-05-03 15:31:03,772 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-05-03 15:31:05,514 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-05-03 15:31:24,759 WARN L205 SmtUtils]: Spent 12.60 s on a formula simplification. DAG size of input: 1196 DAG size of output: 58 [2021-05-03 15:31:26,655 INFO L446 ElimStorePlain]: Different costs {15=[v_prenex_155], 21=[v_prenex_160, f, v_prenex_156, v_prenex_157, v_prenex_158, v_prenex_159]} [2021-05-03 15:31:26,668 INFO L354 Elim1Store]: treesize reduction 120, result has 0.8 percent of original size [2021-05-03 15:31:26,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 239 treesize of output 58 [2021-05-03 15:31:26,670 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:31:26,983 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 106 [2021-05-03 15:31:26,984 INFO L628 ElimStorePlain]: treesize reduction 901, result has 35.0 percent of original size [2021-05-03 15:31:27,070 INFO L354 Elim1Store]: treesize reduction 106, result has 12.4 percent of original size [2021-05-03 15:31:27,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 46 [2021-05-03 15:31:27,074 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:31:27,228 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-05-03 15:31:27,229 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:31:27,559 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-05-03 15:31:27,560 INFO L354 Elim1Store]: treesize reduction 84, result has 50.3 percent of original size [2021-05-03 15:31:27,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 130 [2021-05-03 15:31:27,565 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 15:31:27,703 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-05-03 15:31:27,704 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:31:27,768 INFO L354 Elim1Store]: treesize reduction 111, result has 8.3 percent of original size [2021-05-03 15:31:27,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 41 [2021-05-03 15:31:27,770 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 15:31:27,889 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-05-03 15:31:27,890 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:31:28,033 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 22 [2021-05-03 15:31:28,034 INFO L354 Elim1Store]: treesize reduction 94, result has 22.3 percent of original size [2021-05-03 15:31:28,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 66 treesize of output 55 [2021-05-03 15:31:28,038 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 15:31:28,160 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-05-03 15:31:28,161 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:31:28,365 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 33 [2021-05-03 15:31:28,366 INFO L354 Elim1Store]: treesize reduction 68, result has 43.8 percent of original size [2021-05-03 15:31:28,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 85 [2021-05-03 15:31:28,370 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 15:31:28,457 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:31:28,607 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 32 [2021-05-03 15:31:28,608 INFO L354 Elim1Store]: treesize reduction 126, result has 25.4 percent of original size [2021-05-03 15:31:28,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 21 case distinctions, treesize of input 56 treesize of output 71 [2021-05-03 15:31:28,611 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-05-03 15:31:28,686 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:31:28,694 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 7 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:31:28,695 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 14 variables, input treesize:1618, output treesize:3 [2021-05-03 15:31:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:31:28,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:31:28,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16] total 23 [2021-05-03 15:31:28,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129966016] [2021-05-03 15:31:28,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-03 15:31:28,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:31:28,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-03 15:31:28,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-05-03 15:31:28,724 INFO L87 Difference]: Start difference. First operand 55615 states and 142626 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:31:30,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:31:30,418 INFO L93 Difference]: Finished difference Result 58151 states and 148884 transitions. [2021-05-03 15:31:30,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-03 15:31:30,420 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 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 42 [2021-05-03 15:31:30,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:31:30,534 INFO L225 Difference]: With dead ends: 58151 [2021-05-03 15:31:30,534 INFO L226 Difference]: Without dead ends: 58110 [2021-05-03 15:31:30,535 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 20811.1ms TimeCoverageRelationStatistics Valid=55, Invalid=450, Unknown=1, NotChecked=0, Total=506 [2021-05-03 15:31:30,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58110 states. [2021-05-03 15:31:31,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58110 to 56750. [2021-05-03 15:31:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56750 states, 56749 states have (on average 2.5700364764136814) internal successors, (145847), 56749 states have internal predecessors, (145847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:31:31,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56750 states to 56750 states and 145847 transitions. [2021-05-03 15:31:31,717 INFO L78 Accepts]: Start accepts. Automaton has 56750 states and 145847 transitions. Word has length 42 [2021-05-03 15:31:31,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:31:31,717 INFO L480 AbstractCegarLoop]: Abstraction has 56750 states and 145847 transitions. [2021-05-03 15:31:31,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:31:31,717 INFO L276 IsEmpty]: Start isEmpty. Operand 56750 states and 145847 transitions. [2021-05-03 15:31:31,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-03 15:31:31,755 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:31:31,755 INFO L551 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:31:31,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8590 [2021-05-03 15:31:31,956 INFO L428 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:31:31,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:31:31,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1940096396, now seen corresponding path program 143 times [2021-05-03 15:31:31,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:31:31,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260747684] [2021-05-03 15:31:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:31:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:31:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:31:32,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260747684] [2021-05-03 15:31:32,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963301266] [2021-05-03 15:31:32,091 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 144 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 144 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:31:32,116 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-05-03 15:31:32,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:31:32,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 53 conjunts are in the unsatisfiable core [2021-05-03 15:31:32,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:31:33,214 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 65 [2021-05-03 15:31:33,215 INFO L354 Elim1Store]: treesize reduction 128, result has 43.1 percent of original size [2021-05-03 15:31:33,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 206 treesize of output 181 [2021-05-03 15:31:37,765 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-05-03 15:31:40,645 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:31:40,815 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-05-03 15:31:40,815 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 15:31:44,230 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 15:31:44,230 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:206, output treesize:433 [2021-05-03 15:31:45,349 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2021-05-03 15:31:50,876 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2021-05-03 15:31:51,943 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2021-05-03 15:31:52,982 WARN L205 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 621 [2021-05-03 15:31:55,092 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-05-03 15:31:56,099 WARN L205 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2021-05-03 15:31:58,197 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1196 [2021-05-03 15:32:23,606 WARN L205 SmtUtils]: Spent 14.25 s on a formula simplification. DAG size of input: 1196 DAG size of output: 58 [2021-05-03 15:32:24,766 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 21 [2021-05-03 15:32:24,767 INFO L354 Elim1Store]: treesize reduction 141, result has 16.6 percent of original size [2021-05-03 15:32:24,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 228 treesize of output 99 [2021-05-03 15:32:24,773 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 15:32:25,293 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 108 [2021-05-03 15:32:25,294 INFO L628 ElimStorePlain]: treesize reduction 911, result has 33.7 percent of original size [2021-05-03 15:32:25,635 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 50 [2021-05-03 15:32:25,636 INFO L354 Elim1Store]: treesize reduction 84, result has 50.3 percent of original size [2021-05-03 15:32:25,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 101 treesize of output 133 [2021-05-03 15:32:25,643 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 15:32:25,682 INFO L628 ElimStorePlain]: treesize reduction 362, result has 0.8 percent of original size [2021-05-03 15:32:25,682 INFO L518 ElimStorePlain]: Eliminatee v_prenex_172 vanished before elimination [2021-05-03 15:32:25,683 INFO L518 ElimStorePlain]: Eliminatee f vanished before elimination [2021-05-03 15:32:25,683 INFO L518 ElimStorePlain]: Eliminatee v_prenex_167 vanished before elimination [2021-05-03 15:32:25,683 INFO L518 ElimStorePlain]: Eliminatee v_prenex_168 vanished before elimination [2021-05-03 15:32:25,683 INFO L518 ElimStorePlain]: Eliminatee v_prenex_169 vanished before elimination [2021-05-03 15:32:25,684 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 7 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 15:32:25,684 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 14 variables, input treesize:1590, output treesize:3 [2021-05-03 15:32:25,710 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 15:32:25,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:32:25,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 17] total 24 [2021-05-03 15:32:25,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227043709] [2021-05-03 15:32:25,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 15:32:25,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:32:25,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 15:32:25,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=488, Unknown=2, NotChecked=0, Total=552 [2021-05-03 15:32:25,711 INFO L87 Difference]: Start difference. First operand 56750 states and 145847 transitions. Second operand has 24 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 24 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:32:27,236 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 235 [2021-05-03 15:32:27,610 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 232 [2021-05-03 15:32:28,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:32:28,567 INFO L93 Difference]: Finished difference Result 58133 states and 149157 transitions. [2021-05-03 15:32:28,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 15:32:28,570 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 24 states have internal predecessors, (68), 0 states have call successors, (0), 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 42 [2021-05-03 15:32:28,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:32:28,698 INFO L225 Difference]: With dead ends: 58133 [2021-05-03 15:32:28,699 INFO L226 Difference]: Without dead ends: 58126 [2021-05-03 15:32:28,699 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 27368.5ms TimeCoverageRelationStatistics Valid=78, Invalid=622, Unknown=2, NotChecked=0, Total=702 [2021-05-03 15:32:28,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58126 states. [2021-05-03 15:32:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58126 to 57370. [2021-05-03 15:32:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57370 states, 57369 states have (on average 2.572748348411163) internal successors, (147596), 57369 states have internal predecessors, (147596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:32:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57370 states to 57370 states and 147596 transitions. [2021-05-03 15:32:29,798 INFO L78 Accepts]: Start accepts. Automaton has 57370 states and 147596 transitions. Word has length 42 [2021-05-03 15:32:29,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:32:29,798 INFO L480 AbstractCegarLoop]: Abstraction has 57370 states and 147596 transitions. [2021-05-03 15:32:29,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.8333333333333335) internal successors, (68), 24 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:32:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand 57370 states and 147596 transitions. [2021-05-03 15:32:29,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:32:29,842 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:32:29,842 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:32:30,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9171,144 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:32:30,043 INFO L428 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:32:30,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:32:30,044 INFO L82 PathProgramCache]: Analyzing trace with hash -2129488650, now seen corresponding path program 144 times [2021-05-03 15:32:30,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:32:30,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916562041] [2021-05-03 15:32:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:32:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:32:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:32:30,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916562041] [2021-05-03 15:32:30,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240320793] [2021-05-03 15:32:30,539 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 145 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 145 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:32:30,567 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-05-03 15:32:30,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:32:30,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:32:30,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:32:31,814 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:32:31,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:32:31,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 37 [2021-05-03 15:32:31,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29714921] [2021-05-03 15:32:31,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-05-03 15:32:31,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:32:31,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-05-03 15:32:31,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=1143, Unknown=0, NotChecked=0, Total=1406 [2021-05-03 15:32:31,815 INFO L87 Difference]: Start difference. First operand 57370 states and 147596 transitions. Second operand has 38 states, 38 states have (on average 2.1578947368421053) internal successors, (82), 37 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:32:40,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:32:40,757 INFO L93 Difference]: Finished difference Result 61578 states and 156735 transitions. [2021-05-03 15:32:40,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-05-03 15:32:40,760 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.1578947368421053) internal successors, (82), 37 states have internal predecessors, (82), 0 states have call successors, (0), 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 44 [2021-05-03 15:32:40,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:32:40,894 INFO L225 Difference]: With dead ends: 61578 [2021-05-03 15:32:40,894 INFO L226 Difference]: Without dead ends: 61578 [2021-05-03 15:32:40,896 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5718 ImplicationChecksByTransitivity, 7969.1ms TimeCoverageRelationStatistics Valid=4657, Invalid=13165, Unknown=0, NotChecked=0, Total=17822 [2021-05-03 15:32:40,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61578 states. [2021-05-03 15:32:41,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61578 to 54115. [2021-05-03 15:32:42,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54115 states, 54114 states have (on average 2.5670066895812544) internal successors, (138911), 54114 states have internal predecessors, (138911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:32:42,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54115 states to 54115 states and 138911 transitions. [2021-05-03 15:32:42,163 INFO L78 Accepts]: Start accepts. Automaton has 54115 states and 138911 transitions. Word has length 44 [2021-05-03 15:32:42,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:32:42,163 INFO L480 AbstractCegarLoop]: Abstraction has 54115 states and 138911 transitions. [2021-05-03 15:32:42,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.1578947368421053) internal successors, (82), 37 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:32:42,163 INFO L276 IsEmpty]: Start isEmpty. Operand 54115 states and 138911 transitions. [2021-05-03 15:32:42,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:32:42,211 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:32:42,211 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:32:42,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12110,145 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:32:42,413 INFO L428 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:32:42,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:32:42,413 INFO L82 PathProgramCache]: Analyzing trace with hash 768782642, now seen corresponding path program 145 times [2021-05-03 15:32:42,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:32:42,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133386903] [2021-05-03 15:32:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:32:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:32:42,971 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:32:42,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133386903] [2021-05-03 15:32:42,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774556122] [2021-05-03 15:32:42,972 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 146 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 146 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:32:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:32:42,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:32:42,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:32:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:32:44,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:32:44,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-05-03 15:32:44,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371279332] [2021-05-03 15:32:44,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-05-03 15:32:44,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:32:44,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-05-03 15:32:44,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1107, Unknown=0, NotChecked=0, Total=1332 [2021-05-03 15:32:44,194 INFO L87 Difference]: Start difference. First operand 54115 states and 138911 transitions. Second operand has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 36 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:01,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:33:01,446 INFO L93 Difference]: Finished difference Result 71421 states and 180739 transitions. [2021-05-03 15:33:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2021-05-03 15:33:01,448 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 36 states have internal predecessors, (80), 0 states have call successors, (0), 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 44 [2021-05-03 15:33:01,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:33:01,608 INFO L225 Difference]: With dead ends: 71421 [2021-05-03 15:33:01,608 INFO L226 Difference]: Without dead ends: 71182 [2021-05-03 15:33:01,610 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12672 ImplicationChecksByTransitivity, 16403.9ms TimeCoverageRelationStatistics Valid=7124, Invalid=28032, Unknown=0, NotChecked=0, Total=35156 [2021-05-03 15:33:01,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71182 states. [2021-05-03 15:33:02,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71182 to 55547. [2021-05-03 15:33:03,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55547 states, 55546 states have (on average 2.5671335469700787) internal successors, (142594), 55546 states have internal predecessors, (142594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55547 states to 55547 states and 142594 transitions. [2021-05-03 15:33:03,163 INFO L78 Accepts]: Start accepts. Automaton has 55547 states and 142594 transitions. Word has length 44 [2021-05-03 15:33:03,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:33:03,163 INFO L480 AbstractCegarLoop]: Abstraction has 55547 states and 142594 transitions. [2021-05-03 15:33:03,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 36 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand 55547 states and 142594 transitions. [2021-05-03 15:33:03,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:33:03,211 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:33:03,211 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:33:03,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12111,146 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:33:03,412 INFO L428 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:33:03,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:33:03,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1205657702, now seen corresponding path program 146 times [2021-05-03 15:33:03,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:33:03,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839107203] [2021-05-03 15:33:03,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:33:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:33:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:33:03,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839107203] [2021-05-03 15:33:03,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321631805] [2021-05-03 15:33:03,721 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 147 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 147 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:33:03,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:33:03,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:33:03,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:33:03,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:33:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:33:05,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:33:05,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 29 [2021-05-03 15:33:05,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976608970] [2021-05-03 15:33:05,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-03 15:33:05,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:33:05,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-03 15:33:05,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2021-05-03 15:33:05,302 INFO L87 Difference]: Start difference. First operand 55547 states and 142594 transitions. Second operand has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:08,477 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 12 [2021-05-03 15:33:18,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:33:18,330 INFO L93 Difference]: Finished difference Result 94822 states and 241988 transitions. [2021-05-03 15:33:18,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2021-05-03 15:33:18,333 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 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 44 [2021-05-03 15:33:18,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:33:18,576 INFO L225 Difference]: With dead ends: 94822 [2021-05-03 15:33:18,576 INFO L226 Difference]: Without dead ends: 94798 [2021-05-03 15:33:18,578 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11051 ImplicationChecksByTransitivity, 11533.0ms TimeCoverageRelationStatistics Valid=7112, Invalid=20610, Unknown=0, NotChecked=0, Total=27722 [2021-05-03 15:33:18,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94798 states. [2021-05-03 15:33:20,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94798 to 72019. [2021-05-03 15:33:20,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72019 states, 72018 states have (on average 2.5672054208670056) internal successors, (184885), 72018 states have internal predecessors, (184885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:20,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72019 states to 72019 states and 184885 transitions. [2021-05-03 15:33:20,435 INFO L78 Accepts]: Start accepts. Automaton has 72019 states and 184885 transitions. Word has length 44 [2021-05-03 15:33:20,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:33:20,435 INFO L480 AbstractCegarLoop]: Abstraction has 72019 states and 184885 transitions. [2021-05-03 15:33:20,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:20,435 INFO L276 IsEmpty]: Start isEmpty. Operand 72019 states and 184885 transitions. [2021-05-03 15:33:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:33:20,757 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:33:20,757 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:33:20,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 147 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12112 [2021-05-03 15:33:20,958 INFO L428 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:33:20,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:33:20,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1705411512, now seen corresponding path program 147 times [2021-05-03 15:33:20,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:33:20,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537336167] [2021-05-03 15:33:20,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:33:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:33:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 57 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:33:21,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537336167] [2021-05-03 15:33:21,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49983490] [2021-05-03 15:33:21,242 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 148 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 148 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:33:21,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-05-03 15:33:21,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:33:21,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:33:21,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:33:22,294 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 57 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:33:22,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:33:22,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 29 [2021-05-03 15:33:22,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406726829] [2021-05-03 15:33:22,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-03 15:33:22,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:33:22,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-03 15:33:22,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2021-05-03 15:33:22,296 INFO L87 Difference]: Start difference. First operand 72019 states and 184885 transitions. Second operand has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:24,338 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2021-05-03 15:33:32,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:33:32,185 INFO L93 Difference]: Finished difference Result 73486 states and 187932 transitions. [2021-05-03 15:33:32,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-05-03 15:33:32,189 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 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 44 [2021-05-03 15:33:32,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:33:32,362 INFO L225 Difference]: With dead ends: 73486 [2021-05-03 15:33:32,362 INFO L226 Difference]: Without dead ends: 73482 [2021-05-03 15:33:32,365 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5767 ImplicationChecksByTransitivity, 9070.3ms TimeCoverageRelationStatistics Valid=3791, Invalid=12211, Unknown=0, NotChecked=0, Total=16002 [2021-05-03 15:33:32,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73482 states. [2021-05-03 15:33:33,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73482 to 72019. [2021-05-03 15:33:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72019 states, 72018 states have (on average 2.5667610875059013) internal successors, (184853), 72018 states have internal predecessors, (184853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:34,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72019 states to 72019 states and 184853 transitions. [2021-05-03 15:33:34,035 INFO L78 Accepts]: Start accepts. Automaton has 72019 states and 184853 transitions. Word has length 44 [2021-05-03 15:33:34,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:33:34,035 INFO L480 AbstractCegarLoop]: Abstraction has 72019 states and 184853 transitions. [2021-05-03 15:33:34,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.6) internal successors, (78), 29 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 72019 states and 184853 transitions. [2021-05-03 15:33:34,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:33:34,095 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:33:34,095 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:33:34,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 148 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12113 [2021-05-03 15:33:34,296 INFO L428 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:33:34,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:33:34,296 INFO L82 PathProgramCache]: Analyzing trace with hash 823415346, now seen corresponding path program 148 times [2021-05-03 15:33:34,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:33:34,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740418799] [2021-05-03 15:33:34,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:33:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:33:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 69 proven. 43 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:33:34,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740418799] [2021-05-03 15:33:34,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135919590] [2021-05-03 15:33:34,664 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 149 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 149 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:33:34,690 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:33:34,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:33:34,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:33:34,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:33:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 57 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:33:35,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:33:35,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19] total 29 [2021-05-03 15:33:35,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456489617] [2021-05-03 15:33:35,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-05-03 15:33:35,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:33:35,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-05-03 15:33:35,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=724, Unknown=0, NotChecked=0, Total=870 [2021-05-03 15:33:35,703 INFO L87 Difference]: Start difference. First operand 72019 states and 184853 transitions. Second operand has 30 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 29 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:44,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:33:44,040 INFO L93 Difference]: Finished difference Result 89850 states and 230059 transitions. [2021-05-03 15:33:44,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-05-03 15:33:44,044 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 29 states have internal predecessors, (80), 0 states have call successors, (0), 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 44 [2021-05-03 15:33:44,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:33:44,432 INFO L225 Difference]: With dead ends: 89850 [2021-05-03 15:33:44,433 INFO L226 Difference]: Without dead ends: 89823 [2021-05-03 15:33:44,433 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3652 ImplicationChecksByTransitivity, 6601.1ms TimeCoverageRelationStatistics Valid=2745, Invalid=8385, Unknown=0, NotChecked=0, Total=11130 [2021-05-03 15:33:44,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89823 states. [2021-05-03 15:33:45,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89823 to 71875. [2021-05-03 15:33:46,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71875 states, 71874 states have (on average 2.574004507888805) internal successors, (185004), 71874 states have internal predecessors, (185004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:46,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71875 states to 71875 states and 185004 transitions. [2021-05-03 15:33:46,337 INFO L78 Accepts]: Start accepts. Automaton has 71875 states and 185004 transitions. Word has length 44 [2021-05-03 15:33:46,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:33:46,337 INFO L480 AbstractCegarLoop]: Abstraction has 71875 states and 185004 transitions. [2021-05-03 15:33:46,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 29 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:46,337 INFO L276 IsEmpty]: Start isEmpty. Operand 71875 states and 185004 transitions. [2021-05-03 15:33:46,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:33:46,396 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:33:46,396 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:33:46,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 149 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12114 [2021-05-03 15:33:46,597 INFO L428 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:33:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:33:46,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1963210434, now seen corresponding path program 149 times [2021-05-03 15:33:46,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:33:46,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10255809] [2021-05-03 15:33:46,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:33:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:33:47,001 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:33:47,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10255809] [2021-05-03 15:33:47,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965268325] [2021-05-03 15:33:47,001 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 150 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 150 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:33:47,033 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-05-03 15:33:47,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:33:47,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:33:47,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:33:48,380 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-05-03 15:33:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:33:48,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:33:48,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19] total 30 [2021-05-03 15:33:48,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436477340] [2021-05-03 15:33:48,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-03 15:33:48,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:33:48,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-03 15:33:48,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2021-05-03 15:33:48,910 INFO L87 Difference]: Start difference. First operand 71875 states and 185004 transitions. Second operand has 31 states, 31 states have (on average 2.5161290322580645) internal successors, (78), 30 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:33:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:33:59,434 INFO L93 Difference]: Finished difference Result 76106 states and 194599 transitions. [2021-05-03 15:33:59,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-05-03 15:33:59,437 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.5161290322580645) internal successors, (78), 30 states have internal predecessors, (78), 0 states have call successors, (0), 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 44 [2021-05-03 15:33:59,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:33:59,628 INFO L225 Difference]: With dead ends: 76106 [2021-05-03 15:33:59,628 INFO L226 Difference]: Without dead ends: 76084 [2021-05-03 15:33:59,629 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5971 ImplicationChecksByTransitivity, 9643.6ms TimeCoverageRelationStatistics Valid=3872, Invalid=12640, Unknown=0, NotChecked=0, Total=16512 [2021-05-03 15:33:59,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76084 states. [2021-05-03 15:34:01,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76084 to 73137. [2021-05-03 15:34:01,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73137 states, 73136 states have (on average 2.575434806388099) internal successors, (188357), 73136 states have internal predecessors, (188357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73137 states to 73137 states and 188357 transitions. [2021-05-03 15:34:01,374 INFO L78 Accepts]: Start accepts. Automaton has 73137 states and 188357 transitions. Word has length 44 [2021-05-03 15:34:01,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:34:01,374 INFO L480 AbstractCegarLoop]: Abstraction has 73137 states and 188357 transitions. [2021-05-03 15:34:01,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.5161290322580645) internal successors, (78), 30 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand 73137 states and 188357 transitions. [2021-05-03 15:34:01,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:34:01,433 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:34:01,433 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:34:01,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 150 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12115 [2021-05-03 15:34:01,634 INFO L428 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:34:01,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:34:01,634 INFO L82 PathProgramCache]: Analyzing trace with hash -637321666, now seen corresponding path program 150 times [2021-05-03 15:34:01,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:34:01,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030087228] [2021-05-03 15:34:01,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:34:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:34:02,347 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:34:02,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030087228] [2021-05-03 15:34:02,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986227986] [2021-05-03 15:34:02,347 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 151 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 151 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:34:02,378 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-05-03 15:34:02,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:34:02,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:34:02,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:34:03,940 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:34:03,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:34:03,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19] total 31 [2021-05-03 15:34:03,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665563722] [2021-05-03 15:34:03,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-05-03 15:34:03,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:34:03,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-05-03 15:34:03,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=807, Unknown=0, NotChecked=0, Total=992 [2021-05-03 15:34:03,941 INFO L87 Difference]: Start difference. First operand 73137 states and 188357 transitions. Second operand has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:15,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:34:15,059 INFO L93 Difference]: Finished difference Result 78532 states and 200306 transitions. [2021-05-03 15:34:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-05-03 15:34:15,064 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 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 44 [2021-05-03 15:34:15,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:34:15,263 INFO L225 Difference]: With dead ends: 78532 [2021-05-03 15:34:15,263 INFO L226 Difference]: Without dead ends: 78486 [2021-05-03 15:34:15,264 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6281 ImplicationChecksByTransitivity, 10241.1ms TimeCoverageRelationStatistics Valid=3964, Invalid=13066, Unknown=0, NotChecked=0, Total=17030 [2021-05-03 15:34:15,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78486 states. [2021-05-03 15:34:16,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78486 to 73094. [2021-05-03 15:34:16,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73094 states, 73093 states have (on average 2.579768240460783) internal successors, (188563), 73093 states have internal predecessors, (188563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73094 states to 73094 states and 188563 transitions. [2021-05-03 15:34:17,040 INFO L78 Accepts]: Start accepts. Automaton has 73094 states and 188563 transitions. Word has length 44 [2021-05-03 15:34:17,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:34:17,040 INFO L480 AbstractCegarLoop]: Abstraction has 73094 states and 188563 transitions. [2021-05-03 15:34:17,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:17,040 INFO L276 IsEmpty]: Start isEmpty. Operand 73094 states and 188563 transitions. [2021-05-03 15:34:17,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:34:17,102 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:34:17,102 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:34:17,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 151 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12116 [2021-05-03 15:34:17,302 INFO L428 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:34:17,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:34:17,303 INFO L82 PathProgramCache]: Analyzing trace with hash -77703494, now seen corresponding path program 151 times [2021-05-03 15:34:17,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:34:17,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331994491] [2021-05-03 15:34:17,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:34:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:34:18,114 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 37 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:34:18,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331994491] [2021-05-03 15:34:18,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212469367] [2021-05-03 15:34:18,115 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 152 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 152 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:34:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:34:18,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:34:18,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:34:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 37 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:34:19,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:34:19,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 32 [2021-05-03 15:34:19,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757206602] [2021-05-03 15:34:19,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-05-03 15:34:19,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:34:19,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-05-03 15:34:19,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=868, Unknown=0, NotChecked=0, Total=1056 [2021-05-03 15:34:19,890 INFO L87 Difference]: Start difference. First operand 73094 states and 188563 transitions. Second operand has 33 states, 33 states have (on average 2.3636363636363638) internal successors, (78), 32 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:29,820 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2021-05-03 15:34:31,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:34:31,795 INFO L93 Difference]: Finished difference Result 79388 states and 202095 transitions. [2021-05-03 15:34:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-05-03 15:34:31,797 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.3636363636363638) internal successors, (78), 32 states have internal predecessors, (78), 0 states have call successors, (0), 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 44 [2021-05-03 15:34:31,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:34:32,018 INFO L225 Difference]: With dead ends: 79388 [2021-05-03 15:34:32,019 INFO L226 Difference]: Without dead ends: 79324 [2021-05-03 15:34:32,020 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6570 ImplicationChecksByTransitivity, 11108.0ms TimeCoverageRelationStatistics Valid=4066, Invalid=13490, Unknown=0, NotChecked=0, Total=17556 [2021-05-03 15:34:32,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79324 states. [2021-05-03 15:34:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79324 to 70876. [2021-05-03 15:34:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70876 states, 70875 states have (on average 2.586031746031746) internal successors, (183285), 70875 states have internal predecessors, (183285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:33,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70876 states to 70876 states and 183285 transitions. [2021-05-03 15:34:33,929 INFO L78 Accepts]: Start accepts. Automaton has 70876 states and 183285 transitions. Word has length 44 [2021-05-03 15:34:33,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:34:33,929 INFO L480 AbstractCegarLoop]: Abstraction has 70876 states and 183285 transitions. [2021-05-03 15:34:33,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.3636363636363638) internal successors, (78), 32 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 70876 states and 183285 transitions. [2021-05-03 15:34:33,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:34:33,991 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:34:33,992 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:34:34,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 152 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12117 [2021-05-03 15:34:34,192 INFO L428 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:34:34,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:34:34,193 INFO L82 PathProgramCache]: Analyzing trace with hash 844447798, now seen corresponding path program 152 times [2021-05-03 15:34:34,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:34:34,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451559805] [2021-05-03 15:34:34,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:34:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:34:34,768 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2021-05-03 15:34:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:34:35,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451559805] [2021-05-03 15:34:35,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343437559] [2021-05-03 15:34:35,067 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 153 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 153 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:34:35,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 15:34:35,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:34:35,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:34:35,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:34:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:34:37,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:34:37,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19] total 33 [2021-05-03 15:34:37,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526519952] [2021-05-03 15:34:37,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-05-03 15:34:37,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:34:37,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-05-03 15:34:37,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2021-05-03 15:34:37,084 INFO L87 Difference]: Start difference. First operand 70876 states and 183285 transitions. Second operand has 34 states, 34 states have (on average 2.2941176470588234) internal successors, (78), 33 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:40,719 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2021-05-03 15:34:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:34:49,312 INFO L93 Difference]: Finished difference Result 78292 states and 198968 transitions. [2021-05-03 15:34:49,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-05-03 15:34:49,316 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.2941176470588234) internal successors, (78), 33 states have internal predecessors, (78), 0 states have call successors, (0), 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 44 [2021-05-03 15:34:49,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:34:49,535 INFO L225 Difference]: With dead ends: 78292 [2021-05-03 15:34:49,535 INFO L226 Difference]: Without dead ends: 78222 [2021-05-03 15:34:49,536 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6842 ImplicationChecksByTransitivity, 11611.1ms TimeCoverageRelationStatistics Valid=4177, Invalid=13913, Unknown=0, NotChecked=0, Total=18090 [2021-05-03 15:34:49,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78222 states. [2021-05-03 15:34:51,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78222 to 66237. [2021-05-03 15:34:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66237 states, 66236 states have (on average 2.5923817863397547) internal successors, (171709), 66236 states have internal predecessors, (171709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:51,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66237 states to 66237 states and 171709 transitions. [2021-05-03 15:34:51,484 INFO L78 Accepts]: Start accepts. Automaton has 66237 states and 171709 transitions. Word has length 44 [2021-05-03 15:34:51,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:34:51,484 INFO L480 AbstractCegarLoop]: Abstraction has 66237 states and 171709 transitions. [2021-05-03 15:34:51,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.2941176470588234) internal successors, (78), 33 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:34:51,484 INFO L276 IsEmpty]: Start isEmpty. Operand 66237 states and 171709 transitions. [2021-05-03 15:34:51,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:34:51,543 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:34:51,543 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:34:51,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12118,153 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:34:51,744 INFO L428 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:34:51,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:34:51,744 INFO L82 PathProgramCache]: Analyzing trace with hash -2026390862, now seen corresponding path program 153 times [2021-05-03 15:34:51,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:34:51,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855937238] [2021-05-03 15:34:51,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:34:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:34:52,366 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:34:52,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855937238] [2021-05-03 15:34:52,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228210375] [2021-05-03 15:34:52,366 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 154 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 154 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:34:52,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2021-05-03 15:34:52,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:34:52,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:34:52,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:34:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:34:54,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:34:54,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 34 [2021-05-03 15:34:54,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434278258] [2021-05-03 15:34:54,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-03 15:34:54,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:34:54,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-03 15:34:54,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=984, Unknown=0, NotChecked=0, Total=1190 [2021-05-03 15:34:54,558 INFO L87 Difference]: Start difference. First operand 66237 states and 171709 transitions. Second operand has 35 states, 35 states have (on average 2.2285714285714286) internal successors, (78), 34 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:35:07,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:35:07,077 INFO L93 Difference]: Finished difference Result 75317 states and 190900 transitions. [2021-05-03 15:35:07,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-05-03 15:35:07,082 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.2285714285714286) internal successors, (78), 34 states have internal predecessors, (78), 0 states have call successors, (0), 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 44 [2021-05-03 15:35:07,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:35:07,281 INFO L225 Difference]: With dead ends: 75317 [2021-05-03 15:35:07,282 INFO L226 Difference]: Without dead ends: 75249 [2021-05-03 15:35:07,283 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7072 ImplicationChecksByTransitivity, 11465.8ms TimeCoverageRelationStatistics Valid=4296, Invalid=14336, Unknown=0, NotChecked=0, Total=18632 [2021-05-03 15:35:07,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75249 states. [2021-05-03 15:35:08,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75249 to 60412. [2021-05-03 15:35:08,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60412 states, 60411 states have (on average 2.5961000480045024) internal successors, (156833), 60411 states have internal predecessors, (156833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:35:09,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60412 states to 60412 states and 156833 transitions. [2021-05-03 15:35:09,173 INFO L78 Accepts]: Start accepts. Automaton has 60412 states and 156833 transitions. Word has length 44 [2021-05-03 15:35:09,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:35:09,173 INFO L480 AbstractCegarLoop]: Abstraction has 60412 states and 156833 transitions. [2021-05-03 15:35:09,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.2285714285714286) internal successors, (78), 34 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:35:09,173 INFO L276 IsEmpty]: Start isEmpty. Operand 60412 states and 156833 transitions. [2021-05-03 15:35:09,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:35:09,220 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:35:09,220 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:35:09,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12119,154 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:35:09,421 INFO L428 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:35:09,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:35:09,422 INFO L82 PathProgramCache]: Analyzing trace with hash 761628206, now seen corresponding path program 154 times [2021-05-03 15:35:09,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:35:09,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281112942] [2021-05-03 15:35:09,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:35:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:35:10,168 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 46 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:35:10,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281112942] [2021-05-03 15:35:10,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752272133] [2021-05-03 15:35:10,168 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 155 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 155 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:35:10,195 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 15:35:10,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:35:10,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:35:10,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:35:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 46 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:35:12,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:35:12,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-05-03 15:35:12,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674031339] [2021-05-03 15:35:12,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-03 15:35:12,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:35:12,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-03 15:35:12,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2021-05-03 15:35:12,239 INFO L87 Difference]: Start difference. First operand 60412 states and 156833 transitions. Second operand has 36 states, 36 states have (on average 2.1666666666666665) internal successors, (78), 35 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:35:12,594 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2021-05-03 15:35:25,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:35:25,037 INFO L93 Difference]: Finished difference Result 71294 states and 180046 transitions. [2021-05-03 15:35:25,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-05-03 15:35:25,042 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.1666666666666665) internal successors, (78), 35 states have internal predecessors, (78), 0 states have call successors, (0), 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 44 [2021-05-03 15:35:25,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:35:25,226 INFO L225 Difference]: With dead ends: 71294 [2021-05-03 15:35:25,226 INFO L226 Difference]: Without dead ends: 71236 [2021-05-03 15:35:25,227 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7215 ImplicationChecksByTransitivity, 12128.1ms TimeCoverageRelationStatistics Valid=4422, Invalid=14760, Unknown=0, NotChecked=0, Total=19182 [2021-05-03 15:35:25,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71236 states. [2021-05-03 15:35:26,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71236 to 55869. [2021-05-03 15:35:26,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55869 states, 55868 states have (on average 2.594168396935634) internal successors, (144931), 55868 states have internal predecessors, (144931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:35:26,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55869 states to 55869 states and 144931 transitions. [2021-05-03 15:35:26,714 INFO L78 Accepts]: Start accepts. Automaton has 55869 states and 144931 transitions. Word has length 44 [2021-05-03 15:35:26,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:35:26,714 INFO L480 AbstractCegarLoop]: Abstraction has 55869 states and 144931 transitions. [2021-05-03 15:35:26,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.1666666666666665) internal successors, (78), 35 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:35:26,714 INFO L276 IsEmpty]: Start isEmpty. Operand 55869 states and 144931 transitions. [2021-05-03 15:35:26,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:35:26,760 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:35:26,760 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:35:26,960 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12120,155 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:35:26,961 INFO L428 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:35:26,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:35:26,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1467247882, now seen corresponding path program 155 times [2021-05-03 15:35:26,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:35:26,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771017671] [2021-05-03 15:35:26,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:35:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:35:27,767 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 48 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:35:27,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771017671] [2021-05-03 15:35:27,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624230389] [2021-05-03 15:35:27,767 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 156 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 156 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:35:27,798 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-05-03 15:35:27,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:35:27,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:35:27,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:35:28,611 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-05-03 15:35:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:35:30,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:35:30,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-05-03 15:35:30,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726525448] [2021-05-03 15:35:30,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-05-03 15:35:30,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:35:30,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-05-03 15:35:30,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1100, Unknown=0, NotChecked=0, Total=1332 [2021-05-03 15:35:30,171 INFO L87 Difference]: Start difference. First operand 55869 states and 144931 transitions. Second operand has 37 states, 37 states have (on average 2.189189189189189) internal successors, (81), 36 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:35:43,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:35:43,071 INFO L93 Difference]: Finished difference Result 63141 states and 160316 transitions. [2021-05-03 15:35:43,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-05-03 15:35:43,075 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.189189189189189) internal successors, (81), 36 states have internal predecessors, (81), 0 states have call successors, (0), 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 44 [2021-05-03 15:35:43,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:35:43,249 INFO L225 Difference]: With dead ends: 63141 [2021-05-03 15:35:43,249 INFO L226 Difference]: Without dead ends: 63141 [2021-05-03 15:35:43,251 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5668 ImplicationChecksByTransitivity, 11954.1ms TimeCoverageRelationStatistics Valid=4294, Invalid=13528, Unknown=0, NotChecked=0, Total=17822 [2021-05-03 15:35:43,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63141 states. [2021-05-03 15:35:44,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63141 to 51453. [2021-05-03 15:35:44,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51453 states, 51452 states have (on average 2.5921635699292542) internal successors, (133372), 51452 states have internal predecessors, (133372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:35:44,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51453 states to 51453 states and 133372 transitions. [2021-05-03 15:35:44,568 INFO L78 Accepts]: Start accepts. Automaton has 51453 states and 133372 transitions. Word has length 44 [2021-05-03 15:35:44,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:35:44,568 INFO L480 AbstractCegarLoop]: Abstraction has 51453 states and 133372 transitions. [2021-05-03 15:35:44,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.189189189189189) internal successors, (81), 36 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:35:44,569 INFO L276 IsEmpty]: Start isEmpty. Operand 51453 states and 133372 transitions. [2021-05-03 15:35:44,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:35:44,610 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:35:44,610 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:35:44,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12121,156 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:35:44,810 INFO L428 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:35:44,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:35:44,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1641909810, now seen corresponding path program 156 times [2021-05-03 15:35:44,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:35:44,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553125466] [2021-05-03 15:35:44,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:35:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:35:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:35:45,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553125466] [2021-05-03 15:35:45,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169315614] [2021-05-03 15:35:45,631 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 157 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 157 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:35:45,662 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-05-03 15:35:45,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 15:35:45,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:35:45,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:35:48,244 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:35:48,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:35:48,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-05-03 15:35:48,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652932726] [2021-05-03 15:35:48,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-03 15:35:48,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:35:48,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-03 15:35:48,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1053, Unknown=0, NotChecked=0, Total=1260 [2021-05-03 15:35:48,246 INFO L87 Difference]: Start difference. First operand 51453 states and 133372 transitions. Second operand has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:36:01,049 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2021-05-03 15:36:06,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-03 15:36:06,132 INFO L93 Difference]: Finished difference Result 57683 states and 146274 transitions. [2021-05-03 15:36:06,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-05-03 15:36:06,135 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 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 44 [2021-05-03 15:36:06,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-03 15:36:06,297 INFO L225 Difference]: With dead ends: 57683 [2021-05-03 15:36:06,297 INFO L226 Difference]: Without dead ends: 57500 [2021-05-03 15:36:06,299 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9516 ImplicationChecksByTransitivity, 17369.3ms TimeCoverageRelationStatistics Valid=5161, Invalid=20279, Unknown=0, NotChecked=0, Total=25440 [2021-05-03 15:36:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57500 states. [2021-05-03 15:36:07,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57500 to 50307. [2021-05-03 15:36:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50307 states, 50306 states have (on average 2.5821770762930862) internal successors, (129899), 50306 states have internal predecessors, (129899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:36:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50307 states to 50307 states and 129899 transitions. [2021-05-03 15:36:07,905 INFO L78 Accepts]: Start accepts. Automaton has 50307 states and 129899 transitions. Word has length 44 [2021-05-03 15:36:07,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-03 15:36:07,906 INFO L480 AbstractCegarLoop]: Abstraction has 50307 states and 129899 transitions. [2021-05-03 15:36:07,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:36:07,906 INFO L276 IsEmpty]: Start isEmpty. Operand 50307 states and 129899 transitions. [2021-05-03 15:36:07,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-03 15:36:07,948 INFO L543 BasicCegarLoop]: Found error trace [2021-05-03 15:36:07,949 INFO L551 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-03 15:36:08,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12122,157 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:36:08,149 INFO L428 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 15:36:08,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 15:36:08,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1238626058, now seen corresponding path program 157 times [2021-05-03 15:36:08,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 15:36:08,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946008542] [2021-05-03 15:36:08,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 15:36:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:36:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 47 proven. 65 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 15:36:08,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946008542] [2021-05-03 15:36:08,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879945377] [2021-05-03 15:36:08,986 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 158 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 158 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 15:36:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 15:36:09,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 15:36:09,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 15:36:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 42 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 15:36:11,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 15:36:11,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2021-05-03 15:36:11,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19692693] [2021-05-03 15:36:11,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-05-03 15:36:11,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 15:36:11,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-05-03 15:36:11,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1049, Unknown=0, NotChecked=0, Total=1260 [2021-05-03 15:36:11,429 INFO L87 Difference]: Start difference. First operand 50307 states and 129899 transitions. Second operand has 36 states, 36 states have (on average 2.25) internal successors, (81), 35 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 15:36:12,362 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 13 Received shutdown request... [2021-05-03 15:36:17,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-05-03 15:36:18,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 158 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12123 [2021-05-03 15:36:18,005 WARN L545 AbstractCegarLoop]: Verification canceled [2021-05-03 15:36:18,010 WARN L224 ceAbstractionStarter]: Timeout [2021-05-03 15:36:18,010 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 03:36:18 BasicIcfg [2021-05-03 15:36:18,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-03 15:36:18,011 INFO L168 Benchmark]: Toolchain (without parser) took 795956.34 ms. Allocated memory was 339.7 MB in the beginning and 6.5 GB in the end (delta: 6.2 GB). Free memory was 318.6 MB in the beginning and 4.6 GB in the end (delta: -4.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.0 GB. [2021-05-03 15:36:18,011 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 339.7 MB. Free memory is still 319.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 15:36:18,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.11 ms. Allocated memory is still 339.7 MB. Free memory was 318.5 MB in the beginning and 317.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 15:36:18,011 INFO L168 Benchmark]: Boogie Preprocessor took 17.18 ms. Allocated memory is still 339.7 MB. Free memory was 317.1 MB in the beginning and 316.1 MB in the end (delta: 924.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 15:36:18,011 INFO L168 Benchmark]: RCFGBuilder took 314.59 ms. Allocated memory is still 339.7 MB. Free memory was 316.1 MB in the beginning and 304.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-05-03 15:36:18,011 INFO L168 Benchmark]: TraceAbstraction took 795590.14 ms. Allocated memory was 339.7 MB in the beginning and 6.5 GB in the end (delta: 6.2 GB). Free memory was 303.6 MB in the beginning and 4.6 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.0 GB. [2021-05-03 15:36:18,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 339.7 MB. Free memory is still 319.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.11 ms. Allocated memory is still 339.7 MB. Free memory was 318.5 MB in the beginning and 317.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.18 ms. Allocated memory is still 339.7 MB. Free memory was 317.1 MB in the beginning and 316.1 MB in the end (delta: 924.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 314.59 ms. Allocated memory is still 339.7 MB. Free memory was 316.1 MB in the beginning and 304.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 795590.14 ms. Allocated memory was 339.7 MB in the beginning and 6.5 GB in the end (delta: 6.2 GB). Free memory was 303.6 MB in the beginning and 4.6 GB in the end (delta: -4.3 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 53). Cancelled while BasicCegarLoop was constructing difference of abstraction (50307states) and FLOYD_HOARE automaton (currently 46 states, 36 states before enhancement),while ReachableStatesComputation was computing reachable states (259 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 795439.7ms, OverallIterations: 162, TraceHistogramMax: 8, EmptinessCheckTime: 2384.7ms, AutomataDifference: 349162.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 30.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7236 SDtfs, 46858 SDslu, 69875 SDs, 0 SdLazy, 78218 SolverSat, 11115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 49882.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14550 GetRequests, 4015 SyntacticMatches, 22 SemanticMatches, 10513 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345381 ImplicationChecksByTransitivity, 390176.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=73137occurred in iteration=154, InterpolantAutomatonStates: 8366, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 53829.2ms AutomataMinimizationTime, 161 MinimizatonAttempts, 397616 StatesRemovedByMinimization, 161 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 539.5ms SsaConstructionTime, 2134.0ms SatisfiabilityAnalysisTime, 352221.6ms InterpolantComputationTime, 10672 NumberOfCodeBlocks, 10672 NumberOfCodeBlocksAsserted, 827 NumberOfCheckSat, 10353 ConstructedInterpolants, 112 QuantifiedInterpolants, 167104 SizeOfPredicates, 560 NumberOfNonLiveVariables, 15239 ConjunctsInSsa, 2909 ConjunctsInUnsatCore, 319 InterpolantComputations, 5 PerfectInterpolantSequences, 5918/17383 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown