/usr/bin/java -Xmx8000000000 -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-POR-NewStatesSleep-NoLbe-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 21:31:42,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 21:31:42,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 21:31:42,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-16 21:31:42,471 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-POR-NewStatesSleep-NoLbe-Symm.epf [2021-06-16 21:31:42,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 21:31:42,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 21:31:42,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 21:31:42,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 21:31:42,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 21:31:42,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 21:31:42,505 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 21:31:42,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 21:31:42,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 21:31:42,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 21:31:42,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 21:31:42,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 21:31:42,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 21:31:42,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 21:31:42,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 21:31:42,507 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 21:31:42,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 21:31:42,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 21:31:42,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 21:31:42,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 21:31:42,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 21:31:42,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 21:31:42,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 21:31:42,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 21:31:42,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 21:31:42,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 21:31:42,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 21:31:42,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 21:31:42,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 21:31:42,524 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 21:31:42,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 21:31:42,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 21:31:42,524 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 21:31:42,524 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-06-16 21:31:42,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 21:31:42,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 21:31:42,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 21:31:42,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 21:31:42,790 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 21:31:42,791 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 21:31:42,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl [2021-06-16 21:31:42,791 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl' [2021-06-16 21:31:42,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 21:31:42,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 21:31:42,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 21:31:42,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 21:31:42,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 21:31:42,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/1) ... [2021-06-16 21:31:42,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/1) ... [2021-06-16 21:31:42,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 21:31:42,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 21:31:42,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 21:31:42,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 21:31:42,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/1) ... [2021-06-16 21:31:42,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/1) ... [2021-06-16 21:31:42,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/1) ... [2021-06-16 21:31:42,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/1) ... [2021-06-16 21:31:42,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/1) ... [2021-06-16 21:31:42,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/1) ... [2021-06-16 21:31:42,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/1) ... [2021-06-16 21:31:42,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 21:31:42,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 21:31:42,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 21:31:42,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 21:31:42,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 21:31:42,923 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 21:31:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 21:31:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 21:31:42,924 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 21:31:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 21:31:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 21:31:42,924 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 21:31:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 21:31:42,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 21:31:42,925 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-16 21:31:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-16 21:31:42,926 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-16 21:31:42,926 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 21:31:43,080 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 21:31:43,080 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 21:31:43,082 INFO L202 PluginConnector]: Adding new model max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:31:43 BoogieIcfgContainer [2021-06-16 21:31:43,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 21:31:43,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 21:31:43,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 21:31:43,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 21:31:43,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:31:42" (1/2) ... [2021-06-16 21:31:43,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@390bda69 and model type max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 09:31:43, skipping insertion in model container [2021-06-16 21:31:43,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:31:43" (2/2) ... [2021-06-16 21:31:43,086 INFO L111 eAbstractionObserver]: Analyzing ICFG max-fun.wvr.bpl [2021-06-16 21:31:43,090 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 21:31:43,090 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 21:31:43,090 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 21:31:43,090 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 21:31:43,117 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-16 21:31:43,131 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-16 21:31:43,210 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 21:31:43,210 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 21:31:43,211 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 21:31:43,211 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 21:31:43,211 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 21:31:43,211 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 21:31:43,211 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 21:31:43,211 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 21:31:43,247 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:43,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:43,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1685831996, now seen corresponding path program 1 times [2021-06-16 21:31:43,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:43,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430448650] [2021-06-16 21:31:43,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:43,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:43,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430448650] [2021-06-16 21:31:43,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430448650] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:31:43,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:31:43,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 21:31:43,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330622397] [2021-06-16 21:31:43,436 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 21:31:43,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:43,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 21:31:43,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 21:31:43,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:43,448 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:43,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-06-16 21:31:43,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:43,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:43,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 21:31:43,486 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:43,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:43,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1860946394, now seen corresponding path program 1 times [2021-06-16 21:31:43,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:43,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114330481] [2021-06-16 21:31:43,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:43,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:31:43,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:43,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114330481] [2021-06-16 21:31:43,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114330481] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:31:43,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:31:43,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-16 21:31:43,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263828542] [2021-06-16 21:31:43,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 21:31:43,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:43,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 21:31:43,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-16 21:31:43,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:43,560 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:43,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:31:43,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:43,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:43,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 21:31:43,611 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:43,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:43,611 INFO L82 PathProgramCache]: Analyzing trace with hash 2099964152, now seen corresponding path program 1 times [2021-06-16 21:31:43,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:43,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596355733] [2021-06-16 21:31:43,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:43,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:43,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596355733] [2021-06-16 21:31:43,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596355733] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:43,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047478079] [2021-06-16 21:31:43,968 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 [2021-06-16 21:31:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:44,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-16 21:31:44,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:44,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-06-16 21:31:44,267 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:44,270 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 16 treesize of output 10 [2021-06-16 21:31:44,271 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:44,273 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 16 treesize of output 10 [2021-06-16 21:31:44,276 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:44,287 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:44,290 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-16 21:31:44,290 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:103, output treesize:21 [2021-06-16 21:31:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:44,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047478079] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:44,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:31:44,327 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-16 21:31:44,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414552461] [2021-06-16 21:31:44,328 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 21:31:44,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:44,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 21:31:44,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-16 21:31:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:44,329 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:44,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:31:44,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:44,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:44,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:44,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:44,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:44,683 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:44,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:44,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1225355926, now seen corresponding path program 2 times [2021-06-16 21:31:44,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:44,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886028239] [2021-06-16 21:31:44,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:44,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:44,733 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:44,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886028239] [2021-06-16 21:31:44,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886028239] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:44,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821470864] [2021-06-16 21:31:44,734 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:44,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:31:44,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:31:44,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 21:31:44,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:44,847 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:44,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821470864] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:44,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:31:44,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-16 21:31:44,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749743237] [2021-06-16 21:31:44,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-16 21:31:44,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:44,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-16 21:31:44,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-16 21:31:44,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:44,849 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:44,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:31:44,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:44,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:44,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:44,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:44,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:44,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:44,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:44,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:31:45,183 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:45,184 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:45,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:45,184 INFO L82 PathProgramCache]: Analyzing trace with hash 661666650, now seen corresponding path program 1 times [2021-06-16 21:31:45,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:45,184 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550866378] [2021-06-16 21:31:45,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:31:45,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:45,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550866378] [2021-06-16 21:31:45,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550866378] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:45,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424262555] [2021-06-16 21:31:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:45,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 21:31:45,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:45,359 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:31:45,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424262555] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:45,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:31:45,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-16 21:31:45,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835639887] [2021-06-16 21:31:45,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 21:31:45,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:31:45,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 21:31:45,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-16 21:31:45,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:45,362 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:31:45,362 INFO L483 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) [2021-06-16 21:31:45,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:45,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:45,362 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:45,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:31:45,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:31:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:31:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:31:45,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:31:45,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:31:45,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:31:45,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:45,655 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:31:45,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:31:45,655 INFO L82 PathProgramCache]: Analyzing trace with hash -258173320, now seen corresponding path program 2 times [2021-06-16 21:31:45,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:31:45,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223219370] [2021-06-16 21:31:45,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:31:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:31:46,169 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-06-16 21:31:46,448 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-06-16 21:31:46,665 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-06-16 21:31:46,836 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-06-16 21:31:47,007 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2021-06-16 21:31:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:31:47,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:31:47,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223219370] [2021-06-16 21:31:47,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223219370] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:31:47,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863038051] [2021-06-16 21:31:47,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:31:47,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:31:47,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:31:47,197 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 41 conjunts are in the unsatisfiable core [2021-06-16 21:31:47,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:31:48,483 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-06-16 21:31:49,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:49,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:50,039 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:31:50,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 45 [2021-06-16 21:31:50,047 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:50,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:50,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:50,109 INFO L354 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2021-06-16 21:31:50,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 36 [2021-06-16 21:31:50,114 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:51,691 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 350 [2021-06-16 21:31:51,691 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:51,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,785 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:31:51,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 35 [2021-06-16 21:31:51,792 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:51,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:51,871 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:31:51,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 50 [2021-06-16 21:31:51,890 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:53,422 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 341 [2021-06-16 21:31:53,422 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:53,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:53,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:53,498 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:53,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 69 [2021-06-16 21:31:53,508 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:53,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:53,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:53,575 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-16 21:31:53,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 48 [2021-06-16 21:31:53,583 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:56,512 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 339 DAG size of output: 333 [2021-06-16 21:31:56,513 INFO L628 ElimStorePlain]: treesize reduction 16, result has 99.2 percent of original size [2021-06-16 21:31:56,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:56,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:56,581 INFO L354 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2021-06-16 21:31:56,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 36 [2021-06-16 21:31:56,599 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:56,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:56,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:56,683 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-16 21:31:56,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 57 [2021-06-16 21:31:56,687 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:58,085 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 320 [2021-06-16 21:31:58,086 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:58,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:58,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:58,175 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-16 21:31:58,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 54 [2021-06-16 21:31:58,183 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:58,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:58,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:58,263 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:31:58,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 53 [2021-06-16 21:31:58,268 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:59,618 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 313 [2021-06-16 21:31:59,618 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:31:59,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,691 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-16 21:31:59,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 34 [2021-06-16 21:31:59,694 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-16 21:31:59,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:31:59,750 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:31:59,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 39 [2021-06-16 21:31:59,760 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:01,034 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 302 [2021-06-16 21:32:01,034 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:01,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,112 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-16 21:32:01,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 40 [2021-06-16 21:32:01,127 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:01,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:01,181 INFO L354 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2021-06-16 21:32:01,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 39 [2021-06-16 21:32:01,183 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:02,430 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 290 [2021-06-16 21:32:02,431 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:02,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:02,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:02,517 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-16 21:32:02,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 57 [2021-06-16 21:32:02,528 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:02,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:02,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:02,586 INFO L354 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2021-06-16 21:32:02,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 36 [2021-06-16 21:32:02,588 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:05,059 WARN L205 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 289 DAG size of output: 288 [2021-06-16 21:32:05,060 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.7 percent of original size [2021-06-16 21:32:05,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,130 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:05,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 60 [2021-06-16 21:32:05,147 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:05,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:05,201 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-16 21:32:05,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 31 [2021-06-16 21:32:05,204 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:06,397 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 273 [2021-06-16 21:32:06,397 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:06,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,472 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:06,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 69 [2021-06-16 21:32:06,485 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:06,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:06,556 INFO L354 Elim1Store]: treesize reduction 4, result has 91.1 percent of original size [2021-06-16 21:32:06,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 62 [2021-06-16 21:32:06,573 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:08,844 WARN L205 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 265 DAG size of output: 259 [2021-06-16 21:32:08,845 INFO L628 ElimStorePlain]: treesize reduction 16, result has 99.1 percent of original size [2021-06-16 21:32:08,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:08,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:08,916 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-16 21:32:08,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 45 [2021-06-16 21:32:08,918 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:08,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:08,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:08,969 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:32:08,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 38 [2021-06-16 21:32:08,971 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:10,028 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 248 [2021-06-16 21:32:10,028 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:10,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:10,102 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:32:10,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 53 [2021-06-16 21:32:10,123 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:10,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:10,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:10,177 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-16 21:32:10,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 38 [2021-06-16 21:32:10,184 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:11,183 WARN L205 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-06-16 21:32:11,184 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:11,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:11,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:11,258 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:32:11,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 50 [2021-06-16 21:32:11,273 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:11,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:11,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:11,319 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-16 21:32:11,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 37 [2021-06-16 21:32:11,325 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:12,293 WARN L205 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-06-16 21:32:12,293 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:12,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:12,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:12,362 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-16 21:32:12,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 57 [2021-06-16 21:32:12,373 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:12,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:12,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:12,431 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-16 21:32:12,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 50 [2021-06-16 21:32:12,438 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:13,322 WARN L205 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-16 21:32:13,322 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:13,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:13,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:13,388 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-16 21:32:13,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 49 [2021-06-16 21:32:13,406 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:13,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:13,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:13,454 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-16 21:32:13,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 38 treesize of output 48 [2021-06-16 21:32:13,465 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:14,306 WARN L205 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2021-06-16 21:32:14,306 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:14,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:14,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:14,362 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-16 21:32:14,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 57 [2021-06-16 21:32:14,367 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:14,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:14,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:14,404 INFO L354 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2021-06-16 21:32:14,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 36 [2021-06-16 21:32:14,407 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:15,201 WARN L205 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-16 21:32:15,202 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:32:15,427 INFO L550 ElimStorePlain]: Start of recursive call 1: 17 dim-0 vars, 16 dim-1 vars, End of recursive call: and 32 xjuncts. [2021-06-16 21:32:15,427 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 33 variables, input treesize:2233, output treesize:2097 [2021-06-16 21:32:16,028 WARN L205 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 59 [2021-06-16 21:32:16,147 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:32:16,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863038051] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:16,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:16,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-06-16 21:32:16,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939508076] [2021-06-16 21:32:16,148 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-16 21:32:16,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:16,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-16 21:32:16,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-06-16 21:32:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:16,149 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:16,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 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) [2021-06-16 21:32:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:16,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:16,595 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 63 [2021-06-16 21:32:16,906 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-06-16 21:32:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:17,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:17,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-16 21:32:17,205 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:32:17,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:32:17,206 INFO L82 PathProgramCache]: Analyzing trace with hash 538878486, now seen corresponding path program 3 times [2021-06-16 21:32:17,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:32:17,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395059820] [2021-06-16 21:32:17,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:32:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:32:17,287 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:32:17,288 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:32:17,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395059820] [2021-06-16 21:32:17,288 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395059820] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:17,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450206882] [2021-06-16 21:32:17,288 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:32:17,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-16 21:32:17,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:32:17,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 21:32:17,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:32:17,480 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:32:17,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450206882] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:17,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:17,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-16 21:32:17,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75659836] [2021-06-16 21:32:17,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 21:32:17,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:17,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 21:32:17,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-16 21:32:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:17,482 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:17,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:32:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:17,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:17,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:18,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:32:18,048 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:32:18,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:32:18,048 INFO L82 PathProgramCache]: Analyzing trace with hash 157395674, now seen corresponding path program 4 times [2021-06-16 21:32:18,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:32:18,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771712605] [2021-06-16 21:32:18,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:32:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:32:18,107 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:32:18,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:32:18,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771712605] [2021-06-16 21:32:18,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771712605] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:18,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718173936] [2021-06-16 21:32:18,107 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:32:18,135 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-16 21:32:18,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:32:18,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 21:32:18,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:32:18,222 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 21:32:18,223 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718173936] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:18,223 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:32:18,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-16 21:32:18,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287081251] [2021-06-16 21:32:18,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-16 21:32:18,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:32:18,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-16 21:32:18,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-16 21:32:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:18,224 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:32:18,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) 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) [2021-06-16 21:32:18,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:18,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:18,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:18,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:18,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:18,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:18,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:18,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:32:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:32:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:32:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:32:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:32:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:32:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:32:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:32:18,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable277 [2021-06-16 21:32:18,545 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:32:18,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:32:18,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1710749704, now seen corresponding path program 5 times [2021-06-16 21:32:18,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:32:18,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159117232] [2021-06-16 21:32:18,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:32:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:32:19,737 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 99 [2021-06-16 21:32:19,980 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 53 [2021-06-16 21:32:20,179 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 191 [2021-06-16 21:32:20,489 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 89 [2021-06-16 21:32:23,381 WARN L205 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 320 DAG size of output: 295 [2021-06-16 21:32:24,119 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 131 [2021-06-16 21:32:27,680 WARN L205 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 310 DAG size of output: 299 [2021-06-16 21:32:28,538 WARN L205 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 150 [2021-06-16 21:32:31,408 WARN L205 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 305 DAG size of output: 293 [2021-06-16 21:32:32,247 WARN L205 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 145 [2021-06-16 21:32:33,883 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 258 DAG size of output: 258 [2021-06-16 21:32:34,616 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 118 [2021-06-16 21:32:36,410 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 201 DAG size of output: 170 [2021-06-16 21:32:36,752 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 66 [2021-06-16 21:32:37,854 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 159 DAG size of output: 107 [2021-06-16 21:32:38,050 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 43 [2021-06-16 21:32:39,008 WARN L205 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 104 [2021-06-16 21:32:39,176 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 40 [2021-06-16 21:32:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:32:39,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:32:39,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159117232] [2021-06-16 21:32:39,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159117232] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:32:39,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295281930] [2021-06-16 21:32:39,431 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:32:39,483 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-16 21:32:39,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:32:39,484 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-06-16 21:32:39,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:32:41,212 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 119 [2021-06-16 21:32:42,655 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 355 [2021-06-16 21:32:44,772 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 364 [2021-06-16 21:32:46,478 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 365 [2021-06-16 21:32:48,246 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 367 [2021-06-16 21:32:50,022 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 366 [2021-06-16 21:32:51,501 WARN L205 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2021-06-16 21:32:53,413 WARN L205 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2021-06-16 21:32:54,134 INFO L446 ElimStorePlain]: Different costs {9=[v_prenex_160, v_prenex_162, v_prenex_140, v_prenex_120, v_prenex_142, v_prenex_164, v_prenex_144, v_prenex_166, v_prenex_122, v_prenex_146, v_prenex_124, v_prenex_168, v_prenex_126, v_prenex_148, v_prenex_128, v_prenex_150, v_prenex_130, v_prenex_154, v_prenex_132, v_prenex_111, v_prenex_134, v_prenex_156, v_prenex_158, v_prenex_114, v_prenex_136, v_prenex_138, v_prenex_116, v_prenex_107, A, v_prenex_109], 15=[v_prenex_118, v_prenex_152]} [2021-06-16 21:32:54,178 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:54,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:54,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2021-06-16 21:32:54,221 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:32:54,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:32:54,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:32:54,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 28 [2021-06-16 21:32:54,267 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:01,337 WARN L205 SmtUtils]: Spent 7.07 s on a formula simplification. DAG size of input: 807 DAG size of output: 753 [2021-06-16 21:33:01,339 INFO L628 ElimStorePlain]: treesize reduction 1224, result has 68.9 percent of original size [2021-06-16 21:33:01,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:01,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:01,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:01,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:01,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:33:01,399 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:01,432 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:01,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:01,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:01,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:01,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:01,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-06-16 21:33:01,441 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:04,248 WARN L205 SmtUtils]: Spent 2.81 s on a formula simplification that was a NOOP. DAG size: 739 [2021-06-16 21:33:04,248 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:04,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:04,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:04,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:04,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:04,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:33:04,309 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:04,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:04,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:04,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:04,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:04,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:04,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-06-16 21:33:04,349 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:07,129 WARN L205 SmtUtils]: Spent 2.78 s on a formula simplification that was a NOOP. DAG size: 723 [2021-06-16 21:33:07,130 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:07,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:07,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:07,165 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:07,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:07,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:07,173 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:07,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-16 21:33:07,191 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:07,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:07,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:07,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:07,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:07,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:33:07,245 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:09,799 WARN L205 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 707 [2021-06-16 21:33:09,800 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:09,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:09,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:09,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:09,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:09,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:09,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-06-16 21:33:09,837 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:12,209 WARN L205 SmtUtils]: Spent 2.37 s on a formula simplification that was a NOOP. DAG size: 693 [2021-06-16 21:33:12,209 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:12,235 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:12,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:12,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:12,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:12,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-06-16 21:33:12,242 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:14,527 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification that was a NOOP. DAG size: 678 [2021-06-16 21:33:14,527 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:14,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:14,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:14,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:14,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:14,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:14,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-06-16 21:33:14,560 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:16,831 WARN L205 SmtUtils]: Spent 2.27 s on a formula simplification that was a NOOP. DAG size: 663 [2021-06-16 21:33:16,832 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:16,859 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:16,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:16,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:16,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:16,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:16,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-16 21:33:16,865 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:19,150 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification that was a NOOP. DAG size: 648 [2021-06-16 21:33:19,151 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:19,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:19,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:19,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:19,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:19,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:19,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-16 21:33:19,198 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:21,386 WARN L205 SmtUtils]: Spent 2.19 s on a formula simplification that was a NOOP. DAG size: 633 [2021-06-16 21:33:21,386 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:21,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:21,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:21,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:21,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:21,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-16 21:33:21,439 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:21,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:21,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:21,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:21,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:21,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:21,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2021-06-16 21:33:21,477 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:23,467 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification that was a NOOP. DAG size: 618 [2021-06-16 21:33:23,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:23,490 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:23,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:23,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:23,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:23,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:23,495 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:23,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2021-06-16 21:33:23,511 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:23,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:23,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:23,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:23,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:23,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2021-06-16 21:33:23,545 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:25,472 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 601 [2021-06-16 21:33:25,473 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:25,495 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:25,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:25,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:25,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:25,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:25,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:25,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-06-16 21:33:25,521 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:25,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:25,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:25,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:25,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:25,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:33:25,553 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:27,441 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 585 [2021-06-16 21:33:27,442 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:27,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:27,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:27,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:27,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:27,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:27,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-06-16 21:33:27,473 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:29,261 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 570 [2021-06-16 21:33:29,262 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:29,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:29,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:29,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:29,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:29,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-06-16 21:33:29,309 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:29,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:29,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:29,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:29,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:29,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:29,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 28 [2021-06-16 21:33:29,337 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:30,954 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 553 [2021-06-16 21:33:30,955 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:30,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:30,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:30,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:30,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:30,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:30,988 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:30,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2021-06-16 21:33:31,001 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:31,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:31,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:31,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:31,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:31,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-16 21:33:31,029 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:32,607 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 536 [2021-06-16 21:33:32,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:32,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:32,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:32,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:32,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:32,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:32,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:32,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-06-16 21:33:32,651 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:32,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:32,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:32,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:32,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:32,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:33:32,678 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:34,228 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 519 [2021-06-16 21:33:34,228 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:34,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:34,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:34,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:34,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:34,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-06-16 21:33:34,270 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:34,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:34,292 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:34,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:34,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:34,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:34,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-06-16 21:33:34,297 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:35,685 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 502 [2021-06-16 21:33:35,686 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:35,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:35,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:35,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:35,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:35,711 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:35,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-16 21:33:35,713 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:37,029 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 488 [2021-06-16 21:33:37,030 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:37,051 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:37,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:37,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:37,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:37,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:37,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-16 21:33:37,058 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:38,328 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 473 [2021-06-16 21:33:38,328 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:38,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:38,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:38,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-16 21:33:38,369 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:38,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:38,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:38,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:38,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:38,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:38,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-06-16 21:33:38,395 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:39,628 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 456 [2021-06-16 21:33:39,628 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:39,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:39,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:39,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:39,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:39,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:39,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-16 21:33:39,654 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:40,825 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 441 [2021-06-16 21:33:40,825 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:40,845 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:40,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:40,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:40,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:40,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:40,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-16 21:33:40,851 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:42,003 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 426 [2021-06-16 21:33:42,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:42,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:42,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:42,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:42,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:42,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:42,026 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:42,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2021-06-16 21:33:42,038 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:42,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:42,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:42,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:42,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:42,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-06-16 21:33:42,060 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:43,076 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 409 [2021-06-16 21:33:43,076 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:43,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:43,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:43,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:43,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:43,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:43,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-16 21:33:43,098 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:44,089 WARN L205 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2021-06-16 21:33:44,090 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:44,105 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:44,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:44,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:44,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:44,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:44,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-06-16 21:33:44,111 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:45,157 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 379 [2021-06-16 21:33:45,157 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:45,176 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:45,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:45,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:45,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:45,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:45,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-06-16 21:33:45,183 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:46,286 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 364 [2021-06-16 21:33:46,287 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:46,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:46,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:46,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:46,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:46,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:33:46,327 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:46,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:46,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:46,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:46,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:46,349 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:46,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-06-16 21:33:46,351 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:47,374 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 347 [2021-06-16 21:33:47,374 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:47,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:47,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:47,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:47,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:47,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:47,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-06-16 21:33:47,400 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:48,450 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 332 [2021-06-16 21:33:48,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:48,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:48,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:48,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:48,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:48,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:33:48,491 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:48,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:48,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:48,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:48,511 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:48,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:48,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-06-16 21:33:48,514 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:49,394 WARN L205 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2021-06-16 21:33:49,394 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:49,412 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:49,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:49,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:49,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:49,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:49,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:49,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-06-16 21:33:49,429 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:49,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:49,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:49,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:49,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:49,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:33:49,452 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:50,251 WARN L205 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2021-06-16 21:33:50,252 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:50,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:50,282 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:33:50,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-06-16 21:33:50,285 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:51,025 WARN L205 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-16 21:33:51,025 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:51,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:51,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:51,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:51,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:51,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:51,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:51,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:51,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:51,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:51,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:33:51,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-06-16 21:33:51,051 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-06-16 21:33:51,753 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-06-16 21:33:51,754 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:33:51,798 INFO L550 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 32 dim-1 vars, End of recursive call: and 21 xjuncts. [2021-06-16 21:33:51,799 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 96 variables, input treesize:4005, output treesize:226 [2021-06-16 21:33:52,038 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:33:52,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295281930] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:33:52,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:33:52,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-16 21:33:52,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813078514] [2021-06-16 21:33:52,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-16 21:33:52,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:33:52,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-16 21:33:52,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=896, Unknown=0, NotChecked=0, Total=992 [2021-06-16 21:33:52,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:33:52,039 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:33:52,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.3125) internal successors, (74), 32 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 21:33:52,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:33:52,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:33:52,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:33:52,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:33:52,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:33:52,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:33:52,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:33:52,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:33:52,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:33:52,474 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 35 [2021-06-16 21:33:52,953 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 46 [2021-06-16 21:33:53,393 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 64 [2021-06-16 21:33:53,618 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 66 [2021-06-16 21:33:53,927 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 67 [2021-06-16 21:33:54,215 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 85 [2021-06-16 21:33:55,020 WARN L205 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 127 [2021-06-16 21:33:57,392 WARN L205 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 238 DAG size of output: 123 [2021-06-16 21:34:01,190 WARN L205 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 540 DAG size of output: 162 [2021-06-16 21:34:01,562 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-06-16 21:34:02,168 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-06-16 21:34:02,489 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-06-16 21:34:02,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:34:02,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:34:02,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:34:02,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:34:02,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:34:02,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:34:02,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:34:02,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:34:02,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-16 21:34:02,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable278 [2021-06-16 21:34:02,793 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:34:02,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:34:02,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1933198930, now seen corresponding path program 6 times [2021-06-16 21:34:02,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:34:02,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765765467] [2021-06-16 21:34:02,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:34:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:34:02,902 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:34:02,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:34:02,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765765467] [2021-06-16 21:34:02,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765765467] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:34:02,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157617267] [2021-06-16 21:34:02,903 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:34:02,942 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-16 21:34:02,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:34:02,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-16 21:34:02,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:34:03,140 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:34:03,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157617267] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:34:03,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:34:03,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-06-16 21:34:03,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911031313] [2021-06-16 21:34:03,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-16 21:34:03,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:34:03,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-16 21:34:03,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-06-16 21:34:03,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:34:03,141 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:34:03,142 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 29 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) [2021-06-16 21:34:03,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:34:03,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:34:03,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:34:03,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:34:03,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:34:03,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:34:03,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:34:03,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:34:03,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-16 21:34:03,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:34:03,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:34:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 21:34:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-16 21:34:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 21:34:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:34:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:34:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 21:34:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:34:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-16 21:34:03,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-16 21:34:03,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:34:03,527 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:34:03,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:34:03,527 INFO L82 PathProgramCache]: Analyzing trace with hash 976790896, now seen corresponding path program 7 times [2021-06-16 21:34:03,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:34:03,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374301784] [2021-06-16 21:34:03,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:34:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:34:06,311 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 47 [2021-06-16 21:34:07,190 WARN L205 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 122 [2021-06-16 21:34:07,402 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 44 [2021-06-16 21:34:14,172 WARN L205 SmtUtils]: Spent 6.77 s on a formula simplification. DAG size of input: 419 DAG size of output: 328 [2021-06-16 21:34:14,775 WARN L205 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 70 [2021-06-16 21:36:25,575 WARN L205 SmtUtils]: Spent 2.18 m on a formula simplification. DAG size of input: 701 DAG size of output: 581 [2021-06-16 21:36:25,706 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 581 [2021-06-16 21:36:27,481 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 581 DAG size of output: 126 [2021-06-16 21:40:48,349 WARN L205 SmtUtils]: Spent 4.35 m on a formula simplification. DAG size of input: 759 DAG size of output: 752 [2021-06-16 21:40:51,192 WARN L205 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 751 DAG size of output: 179 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown