/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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 20:36:36,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 20:36:36,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 20:36:36,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 20:36:36,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 20:36:36,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 20:36:36,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 20:36:36,945 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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-14 20:36:36,965 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 20:36:36,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 20:36:36,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 20:36:36,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 20:36:36,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 20:36:36,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 20:36:36,967 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 20:36:36,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 20:36:36,968 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 20:36:36,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 20:36:36,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 20:36:36,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 20:36:36,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 20:36:36,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 20:36:36,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 20:36:36,969 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 20:36:36,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 20:36:36,969 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 20:36:36,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 20:36:36,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 20:36:36,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 20:36:36,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 20:36:36,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 20:36:36,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 20:36:36,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 20:36:36,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 20:36:36,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 20:36:36,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 20:36:36,971 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 20:36:36,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 20:36:36,971 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 20:36:36,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 20:36:36,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 20:36:36,971 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 20:36:36,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 20:36:36,971 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 20:36:37,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 20:36:37,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 20:36:37,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 20:36:37,290 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 20:36:37,291 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 20:36:37,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl [2021-07-14 20:36:37,292 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl' [2021-07-14 20:36:37,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 20:36:37,315 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 20:36:37,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 20:36:37,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 20:36:37,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 20:36:37,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (1/1) ... [2021-07-14 20:36:37,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (1/1) ... [2021-07-14 20:36:37,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 20:36:37,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 20:36:37,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 20:36:37,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 20:36:37,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (1/1) ... [2021-07-14 20:36:37,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (1/1) ... [2021-07-14 20:36:37,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (1/1) ... [2021-07-14 20:36:37,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (1/1) ... [2021-07-14 20:36:37,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (1/1) ... [2021-07-14 20:36:37,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (1/1) ... [2021-07-14 20:36:37,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (1/1) ... [2021-07-14 20:36:37,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 20:36:37,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 20:36:37,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 20:36:37,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 20:36:37,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (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 [2021-07-14 20:36:37,424 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 20:36:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 20:36:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 20:36:37,424 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 20:36:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 20:36:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 20:36:37,425 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 20:36:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 20:36:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 20:36:37,427 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 20:36:37,654 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 20:36:37,655 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-14 20:36:37,655 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-14 20:36:37,656 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-07-14 20:36:37,657 INFO L202 PluginConnector]: Adding new model unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 08:36:37 BoogieIcfgContainer [2021-07-14 20:36:37,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 20:36:37,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 20:36:37,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 20:36:37,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 20:36:37,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 08:36:37" (1/2) ... [2021-07-14 20:36:37,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482581d6 and model type unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 08:36:37, skipping insertion in model container [2021-07-14 20:36:37,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 08:36:37" (2/2) ... [2021-07-14 20:36:37,663 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.bpl [2021-07-14 20:36:37,689 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 20:36:37,689 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 20:36:37,689 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 20:36:37,690 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 20:36:37,744 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 20:36:37,770 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 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 [2021-07-14 20:36:37,817 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 20:36:37,818 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 20:36:37,818 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 20:36:37,818 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 20:36:37,818 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 20:36:37,818 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 20:36:37,819 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 20:36:37,819 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 20:36:37,897 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:37,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:37,902 INFO L82 PathProgramCache]: Analyzing trace with hash 333240611, now seen corresponding path program 1 times [2021-07-14 20:36:37,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:37,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260733329] [2021-07-14 20:36:37,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:38,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:38,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:38,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260733329] [2021-07-14 20:36:38,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260733329] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 20:36:38,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 20:36:38,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 20:36:38,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308585732] [2021-07-14 20:36:38,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 20:36:38,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:38,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 20:36:38,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 20:36:38,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:38,037 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:38,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:38,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:38,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:38,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 20:36:38,056 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:38,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:38,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1741251818, now seen corresponding path program 1 times [2021-07-14 20:36:38,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:38,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162735009] [2021-07-14 20:36:38,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:38,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:38,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162735009] [2021-07-14 20:36:38,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162735009] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 20:36:38,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 20:36:38,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 20:36:38,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707374295] [2021-07-14 20:36:38,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 20:36:38,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:38,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 20:36:38,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 20:36:38,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:38,149 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:38,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:38,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:38,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:38,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:38,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 20:36:38,196 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:38,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:38,198 INFO L82 PathProgramCache]: Analyzing trace with hash 657961685, now seen corresponding path program 1 times [2021-07-14 20:36:38,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:38,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034039388] [2021-07-14 20:36:38,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:38,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:38,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:38,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034039388] [2021-07-14 20:36:38,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034039388] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:38,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783378536] [2021-07-14 20:36:38,246 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 [2021-07-14 20:36:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:38,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-14 20:36:38,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:38,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783378536] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:38,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:38,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-07-14 20:36:38,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532019770] [2021-07-14 20:36:38,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 20:36:38,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:38,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 20:36:38,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 20:36:38,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:38,383 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:38,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:38,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:38,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:38,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:38,640 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:38,641 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:38,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:38,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1077296776, now seen corresponding path program 1 times [2021-07-14 20:36:38,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:38,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109814156] [2021-07-14 20:36:38,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 20:36:38,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:38,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109814156] [2021-07-14 20:36:38,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109814156] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:38,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734225046] [2021-07-14 20:36:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:38,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 20:36:38,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 20:36:38,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734225046] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:38,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:38,755 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-14 20:36:38,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60279620] [2021-07-14 20:36:38,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 20:36:38,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:38,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 20:36:38,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 20:36:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:38,756 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:38,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:38,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:38,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:38,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:38,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:38,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:38,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:38,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:38,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:38,995 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:38,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:38,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1742010026, now seen corresponding path program 2 times [2021-07-14 20:36:38,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:38,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333737360] [2021-07-14 20:36:38,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 20:36:39,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:39,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333737360] [2021-07-14 20:36:39,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333737360] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:39,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990435991] [2021-07-14 20:36:39,070 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 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 [2021-07-14 20:36:39,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:36:39,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:39,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 20:36:39,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 20:36:39,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990435991] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:39,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:39,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-07-14 20:36:39,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966317160] [2021-07-14 20:36:39,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 20:36:39,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:39,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 20:36:39,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-14 20:36:39,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:39,175 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:39,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:39,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:39,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:39,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:39,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:39,428 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:39,428 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:39,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:39,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1053792328, now seen corresponding path program 3 times [2021-07-14 20:36:39,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:39,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198287582] [2021-07-14 20:36:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 20:36:39,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:39,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198287582] [2021-07-14 20:36:39,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198287582] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:39,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193394934] [2021-07-14 20:36:39,510 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 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 [2021-07-14 20:36:39,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 20:36:39,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:39,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 20:36:39,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:39,682 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 20:36:39,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193394934] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:39,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:39,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-14 20:36:39,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280915585] [2021-07-14 20:36:39,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 20:36:39,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:39,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 20:36:39,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-14 20:36:39,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:39,684 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:39,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:39,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:39,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:39,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:39,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:39,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:39,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:39,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:39,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:39,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-14 20:36:39,975 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:39,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:39,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1824319382, now seen corresponding path program 4 times [2021-07-14 20:36:39,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:39,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993792194] [2021-07-14 20:36:39,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:40,024 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:40,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:40,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993792194] [2021-07-14 20:36:40,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993792194] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:40,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979581732] [2021-07-14 20:36:40,025 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 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 [2021-07-14 20:36:40,056 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 20:36:40,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:40,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 20:36:40,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:40,202 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:36:40,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-07-14 20:36:40,252 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:36:40,254 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:36:40,255 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:36:40,255 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-07-14 20:36:40,260 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:40,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979581732] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:40,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:40,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-07-14 20:36:40,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048748132] [2021-07-14 20:36:40,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 20:36:40,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:40,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 20:36:40,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-07-14 20:36:40,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:40,262 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:40,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:40,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:40,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:40,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:40,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:40,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:40,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:40,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:40,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:40,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:40,537 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:40,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:40,537 INFO L82 PathProgramCache]: Analyzing trace with hash -718598525, now seen corresponding path program 5 times [2021-07-14 20:36:40,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:40,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607791302] [2021-07-14 20:36:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:40,615 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:40,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:40,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607791302] [2021-07-14 20:36:40,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607791302] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:40,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562172554] [2021-07-14 20:36:40,615 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 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 [2021-07-14 20:36:40,659 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-07-14 20:36:40,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:40,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-14 20:36:40,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:40,723 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:40,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562172554] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:40,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:40,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-07-14 20:36:40,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133806142] [2021-07-14 20:36:40,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 20:36:40,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:40,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 20:36:40,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-07-14 20:36:40,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:40,726 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:40,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:40,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:40,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:40,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:40,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:40,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:40,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:40,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:40,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:40,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:41,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-14 20:36:41,101 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:41,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:41,102 INFO L82 PathProgramCache]: Analyzing trace with hash 59145720, now seen corresponding path program 6 times [2021-07-14 20:36:41,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:41,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12816465] [2021-07-14 20:36:41,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:41,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:41,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12816465] [2021-07-14 20:36:41,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12816465] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:41,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132413159] [2021-07-14 20:36:41,173 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 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 [2021-07-14 20:36:41,207 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-14 20:36:41,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:41,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-14 20:36:41,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:41,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132413159] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:41,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:41,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-07-14 20:36:41,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191155704] [2021-07-14 20:36:41,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 20:36:41,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:41,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 20:36:41,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-07-14 20:36:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:41,278 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:41,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:41,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:41,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:41,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:41,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:41,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:41,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:41,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:41,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:41,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:41,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:41,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:41,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:41,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-14 20:36:41,625 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:41,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:41,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1834244789, now seen corresponding path program 7 times [2021-07-14 20:36:41,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:41,626 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990113221] [2021-07-14 20:36:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:41,709 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 20:36:41,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:41,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990113221] [2021-07-14 20:36:41,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990113221] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:41,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272765971] [2021-07-14 20:36:41,710 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-07-14 20:36:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:41,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 20:36:41,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:41,835 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 20:36:41,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272765971] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:41,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:41,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-07-14 20:36:41,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367284908] [2021-07-14 20:36:41,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 20:36:41,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:41,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 20:36:41,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-07-14 20:36:41,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:41,859 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:41,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 11 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) [2021-07-14 20:36:41,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:41,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:41,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:41,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:41,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:41,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:41,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:41,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:41,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:41,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:42,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:42,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:42,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:42,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:42,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:42,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-14 20:36:42,239 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:42,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:42,239 INFO L82 PathProgramCache]: Analyzing trace with hash -631991101, now seen corresponding path program 8 times [2021-07-14 20:36:42,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:42,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125471466] [2021-07-14 20:36:42,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:42,362 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 20:36:42,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:42,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125471466] [2021-07-14 20:36:42,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125471466] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:42,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524940280] [2021-07-14 20:36:42,363 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:42,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:36:42,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:42,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 20:36:42,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:42,515 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 20:36:42,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524940280] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:42,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:42,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 20:36:42,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865260088] [2021-07-14 20:36:42,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 20:36:42,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:42,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 20:36:42,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-07-14 20:36:42,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:42,519 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:42,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:42,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:42,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:42,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:42,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:42,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:42,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:42,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:42,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:42,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:42,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:42,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:42,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:42,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:42,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:42,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:42,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-14 20:36:42,944 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:42,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:42,944 INFO L82 PathProgramCache]: Analyzing trace with hash 224107637, now seen corresponding path program 9 times [2021-07-14 20:36:42,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:42,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702320592] [2021-07-14 20:36:42,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:43,107 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 20:36:43,108 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:43,108 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702320592] [2021-07-14 20:36:43,108 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702320592] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:43,108 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37919303] [2021-07-14 20:36:43,108 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:43,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 20:36:43,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:43,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 20:36:43,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:43,249 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 20:36:43,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37919303] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:43,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:43,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-07-14 20:36:43,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237378040] [2021-07-14 20:36:43,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 20:36:43,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:43,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 20:36:43,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-07-14 20:36:43,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:43,250 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:43,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:43,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:43,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:43,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:43,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:43,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:43,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:43,685 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:43,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:43,686 INFO L82 PathProgramCache]: Analyzing trace with hash 993364739, now seen corresponding path program 10 times [2021-07-14 20:36:43,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:43,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71068275] [2021-07-14 20:36:43,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:43,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:43,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71068275] [2021-07-14 20:36:43,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71068275] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:43,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553985019] [2021-07-14 20:36:43,762 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:43,817 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 20:36:43,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:43,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-14 20:36:43,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:44,189 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-14 20:36:44,190 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:36:44,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 39 treesize of output 252 [2021-07-14 20:36:45,065 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 247 [2021-07-14 20:36:45,189 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 263 [2021-07-14 20:36:45,335 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 266 [2021-07-14 20:36:45,472 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 266 [2021-07-14 20:36:45,638 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 274 [2021-07-14 20:36:45,778 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 264 [2021-07-14 20:36:46,356 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 179 [2021-07-14 20:36:46,470 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 185 [2021-07-14 20:36:46,609 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 239 [2021-07-14 20:36:47,645 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 20:36:47,647 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:36:47,648 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 20:36:47,648 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-07-14 20:36:47,652 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:47,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553985019] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:47,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:47,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2021-07-14 20:36:47,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826139773] [2021-07-14 20:36:47,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 20:36:47,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:47,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 20:36:47,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-14 20:36:47,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:47,654 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:47,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.619047619047619) internal successors, (34), 20 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) [2021-07-14 20:36:47,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:47,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:47,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:47,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:47,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:47,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:47,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:47,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:47,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:47,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:47,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:47,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:47,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:47,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:47,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:48,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:48,013 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:48,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:48,014 INFO L82 PathProgramCache]: Analyzing trace with hash 730263306, now seen corresponding path program 11 times [2021-07-14 20:36:48,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:48,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341325168] [2021-07-14 20:36:48,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:48,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:48,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341325168] [2021-07-14 20:36:48,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341325168] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:48,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878863848] [2021-07-14 20:36:48,144 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:48,176 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 20:36:48,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:48,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 20:36:48,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:48,228 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:48,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878863848] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:48,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:48,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-07-14 20:36:48,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829166071] [2021-07-14 20:36:48,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 20:36:48,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:48,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 20:36:48,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-07-14 20:36:48,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:48,230 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:48,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:48,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:48,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:48,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:48,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:48,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:48,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:48,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:48,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:48,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:48,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:48,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:48,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:48,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:48,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:48,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 20:36:48,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable315 [2021-07-14 20:36:48,697 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:48,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:48,697 INFO L82 PathProgramCache]: Analyzing trace with hash -929468875, now seen corresponding path program 12 times [2021-07-14 20:36:48,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:48,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796959131] [2021-07-14 20:36:48,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:48,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:48,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796959131] [2021-07-14 20:36:48,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796959131] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:48,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738870183] [2021-07-14 20:36:48,832 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:48,875 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 20:36:48,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:48,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 20:36:48,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:48,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738870183] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:48,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:48,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-07-14 20:36:48,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964995387] [2021-07-14 20:36:48,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 20:36:48,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:48,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 20:36:48,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-14 20:36:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:48,941 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:48,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 20:36:48,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 20:36:49,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:36:49,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:49,345 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:49,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:49,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1251963416, now seen corresponding path program 13 times [2021-07-14 20:36:49,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:49,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982969011] [2021-07-14 20:36:49,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:49,498 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 20:36:49,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:49,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982969011] [2021-07-14 20:36:49,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982969011] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:49,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708912775] [2021-07-14 20:36:49,499 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:49,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-14 20:36:49,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:49,692 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 20:36:49,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708912775] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:49,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:49,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-07-14 20:36:49,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565684254] [2021-07-14 20:36:49,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 20:36:49,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:49,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 20:36:49,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-07-14 20:36:49,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:49,694 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:49,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.4) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:49,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:49,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:49,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:49,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:36:49,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 20:36:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:36:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:50,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:50,337 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:50,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:50,337 INFO L82 PathProgramCache]: Analyzing trace with hash 244797642, now seen corresponding path program 14 times [2021-07-14 20:36:50,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:50,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618086600] [2021-07-14 20:36:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:50,492 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 20:36:50,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:50,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618086600] [2021-07-14 20:36:50,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618086600] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:50,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418540431] [2021-07-14 20:36:50,492 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:50,523 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 20:36:50,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:50,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 20:36:50,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:50,707 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 20:36:50,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418540431] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:50,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:50,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-07-14 20:36:50,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107150563] [2021-07-14 20:36:50,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 20:36:50,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:50,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 20:36:50,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2021-07-14 20:36:50,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:50,709 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:50,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:50,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:50,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 20:36:50,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:36:50,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:50,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 20:36:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:36:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:36:51,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:51,337 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:51,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:51,337 INFO L82 PathProgramCache]: Analyzing trace with hash -912570280, now seen corresponding path program 15 times [2021-07-14 20:36:51,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:51,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402690687] [2021-07-14 20:36:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:51,537 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-14 20:36:51,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:51,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402690687] [2021-07-14 20:36:51,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402690687] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:51,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054207861] [2021-07-14 20:36:51,538 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:51,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-07-14 20:36:51,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:51,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-14 20:36:51,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:51,957 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:51,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054207861] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:51,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 20:36:51,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 28 [2021-07-14 20:36:51,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442000538] [2021-07-14 20:36:51,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-14 20:36:51,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 20:36:51,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-14 20:36:51,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=687, Unknown=0, NotChecked=0, Total=812 [2021-07-14 20:36:51,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:51,959 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 20:36:51,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 20:36:51,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:51,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:51,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:51,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:51,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:51,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:36:51,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 20:36:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 20:36:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 20:36:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 20:36:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 20:36:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-14 20:36:53,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable319 [2021-07-14 20:36:53,237 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 20:36:53,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 20:36:53,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1863729802, now seen corresponding path program 16 times [2021-07-14 20:36:53,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 20:36:53,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152438034] [2021-07-14 20:36:53,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 20:36:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 20:36:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 20:36:53,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 20:36:53,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152438034] [2021-07-14 20:36:53,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152438034] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 20:36:53,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224626858] [2021-07-14 20:36:53,365 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 20:36:53,402 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 20:36:53,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 20:36:53,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-14 20:36:53,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 20:36:54,146 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-07-14 20:36:54,146 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 20:36:54,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 55 treesize of output 568 [2021-07-14 20:36:55,256 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 380 [2021-07-14 20:36:55,420 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 383 [2021-07-14 20:36:56,152 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 309 [2021-07-14 20:36:56,900 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 321 [2021-07-14 20:36:57,113 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 513 [2021-07-14 20:36:57,412 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 516 [2021-07-14 20:36:57,892 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 757 [2021-07-14 20:36:58,506 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 938 DAG size of output: 782 [2021-07-14 20:36:59,531 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 397 [2021-07-14 20:36:59,721 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 432 [2021-07-14 20:36:59,946 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 497 DAG size of output: 439 [2021-07-14 20:37:00,776 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 414 DAG size of output: 387 [2021-07-14 20:37:01,508 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 392 [2021-07-14 20:37:01,809 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 718 DAG size of output: 687 [2021-07-14 20:37:02,231 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 720 [2021-07-14 20:37:02,679 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 760 DAG size of output: 727 [2021-07-14 20:37:03,476 WARN L205 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 1118 DAG size of output: 985 [2021-07-14 20:37:04,387 WARN L205 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 1140 DAG size of output: 1008 [2021-07-14 20:37:05,985 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 1924 DAG size of output: 1536 [2021-07-14 20:37:07,220 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 483 [2021-07-14 20:37:07,440 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 486 [2021-07-14 20:37:08,171 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 344 [2021-07-14 20:37:08,303 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 347 [2021-07-14 20:37:08,714 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 711 [2021-07-14 20:37:09,214 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 893 DAG size of output: 737 [2021-07-14 20:37:10,102 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 367 [2021-07-14 20:37:10,270 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 402 [2021-07-14 20:37:10,465 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 470 DAG size of output: 408 [2021-07-14 20:37:11,065 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 370 [2021-07-14 20:37:11,726 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 391 DAG size of output: 363 [2021-07-14 20:37:11,976 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 691 DAG size of output: 657 [2021-07-14 20:37:12,290 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 690 [2021-07-14 20:37:12,679 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 696 [2021-07-14 20:37:13,342 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 1082 DAG size of output: 940 [2021-07-14 20:37:14,132 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 964 [2021-07-14 20:37:15,516 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1864 DAG size of output: 1466 [2021-07-14 20:37:18,984 WARN L205 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 3619 DAG size of output: 2834 [2021-07-14 20:37:22,970 WARN L205 SmtUtils]: Spent 3.97 s on a formula simplification. DAG size of input: 3664 DAG size of output: 2879 [2021-07-14 20:37:27,531 WARN L205 SmtUtils]: Spent 4.54 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-07-14 20:37:32,063 WARN L205 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-07-14 20:37:37,572 WARN L205 SmtUtils]: Spent 5.50 s on a formula simplification. DAG size of input: 3707 DAG size of output: 2922 [2021-07-14 20:37:42,621 WARN L205 SmtUtils]: Spent 5.03 s on a formula simplification. DAG size of input: 2924 DAG size of output: 2915 [2021-07-14 20:37:48,092 WARN L205 SmtUtils]: Spent 5.45 s on a formula simplification. DAG size of input: 2912 DAG size of output: 3217 [2021-07-14 20:37:56,645 WARN L205 SmtUtils]: Spent 8.54 s on a formula simplification. DAG size of input: 2696 DAG size of output: 3553 [2021-07-14 20:37:56,820 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 2516 [2021-07-14 20:37:57,954 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 278 [2021-07-14 20:37:59,934 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 2495 DAG size of output: 2494 [2021-07-14 20:38:06,814 WARN L205 SmtUtils]: Spent 6.87 s on a formula simplification. DAG size of input: 2493 DAG size of output: 3700 [2021-07-14 20:38:07,147 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 2169 DAG size of output: 2169 [2021-07-14 20:38:07,446 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 2126 DAG size of output: 2126 [2021-07-14 20:38:08,464 WARN L205 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 977 [2021-07-14 20:38:08,828 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 339 [2021-07-14 20:38:09,387 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 250 [2021-07-14 20:38:10,630 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 257 [2021-07-14 20:38:10,906 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 340 [2021-07-14 20:38:11,237 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 396 [2021-07-14 20:38:11,723 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 799 DAG size of output: 592 [2021-07-14 20:38:11,834 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 337 [2021-07-14 20:38:12,600 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 185 [2021-07-14 20:38:12,739 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 243 [2021-07-14 20:38:13,135 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 265 [2021-07-14 20:38:13,462 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 425 [2021-07-14 20:38:13,942 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 623 [2021-07-14 20:38:15,033 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1090 DAG size of output: 844 [2021-07-14 20:38:16,386 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 322 [2021-07-14 20:38:16,676 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 350 [2021-07-14 20:38:17,753 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 285 [2021-07-14 20:38:18,009 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 391 [2021-07-14 20:38:18,340 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 449 [2021-07-14 20:38:19,272 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 238 [2021-07-14 20:38:19,483 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 360 [2021-07-14 20:38:19,755 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 396 [2021-07-14 20:38:20,110 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 455 [2021-07-14 20:38:20,896 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 659 [2021-07-14 20:38:21,919 WARN L205 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 827 DAG size of output: 710 [2021-07-14 20:38:22,853 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 245 [2021-07-14 20:38:23,037 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 305 [2021-07-14 20:38:23,282 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 409 [2021-07-14 20:38:23,596 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 526 DAG size of output: 472 [2021-07-14 20:38:24,620 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 221 [2021-07-14 20:38:24,783 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 275 [2021-07-14 20:38:24,996 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 374 [2021-07-14 20:38:25,290 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 490 DAG size of output: 411 [2021-07-14 20:38:25,669 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 475 [2021-07-14 20:38:26,440 WARN L205 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 831 DAG size of output: 714 [2021-07-14 20:38:28,348 WARN L205 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 1682 DAG size of output: 1237 [2021-07-14 20:38:31,467 WARN L205 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 2518 DAG size of output: 1697 [2021-07-14 20:38:35,121 WARN L205 SmtUtils]: Spent 3.64 s on a formula simplification. DAG size of input: 2537 DAG size of output: 1736 [2021-07-14 20:38:39,806 WARN L205 SmtUtils]: Spent 4.67 s on a formula simplification. DAG size of input: 2890 DAG size of output: 1831 [2021-07-14 20:38:40,962 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 700 DAG size of output: 1050 [2021-07-14 20:38:41,354 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 660 [2021-07-14 20:38:41,967 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 647 DAG size of output: 823 [2021-07-14 20:38:42,790 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 219 [2021-07-14 20:38:43,057 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 257 [2021-07-14 20:38:43,275 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 285 [2021-07-14 20:38:43,552 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 348 [2021-07-14 20:38:43,958 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 513 [2021-07-14 20:38:44,168 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 429 [2021-07-14 20:38:45,170 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 283 [2021-07-14 20:38:45,364 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 309 [2021-07-14 20:38:46,313 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 270 [2021-07-14 20:38:46,481 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 296 [2021-07-14 20:38:46,896 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 492 [2021-07-14 20:38:47,448 WARN L205 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 712 DAG size of output: 624 [2021-07-14 20:38:48,253 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 814 [2021-07-14 20:38:49,622 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1058 [2021-07-14 20:38:51,397 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1723 DAG size of output: 1396 [2021-07-14 20:38:52,112 WARN L205 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 828 [2021-07-14 20:38:52,755 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 766 [2021-07-14 20:38:53,162 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 639 [2021-07-14 20:38:53,279 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 332 [2021-07-14 20:38:54,888 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 224 [2021-07-14 20:38:55,023 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 248 [2021-07-14 20:38:55,187 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 500 DAG size of output: 212 [2021-07-14 20:38:55,502 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 388 [2021-07-14 20:38:56,149 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 707 [2021-07-14 20:38:57,145 WARN L205 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 1357 DAG size of output: 863 [2021-07-14 20:38:58,576 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1729 DAG size of output: 1197 [2021-07-14 20:39:02,103 WARN L205 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 2363 DAG size of output: 1672 [2021-07-14 20:39:06,249 WARN L205 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 2424 DAG size of output: 1716 [2021-07-14 20:39:12,109 WARN L205 SmtUtils]: Spent 5.85 s on a formula simplification. DAG size of input: 2831 DAG size of output: 1844 [2021-07-14 20:39:23,767 WARN L205 SmtUtils]: Spent 11.64 s on a formula simplification. DAG size of input: 5382 DAG size of output: 3237 [2021-07-14 20:39:25,084 WARN L205 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 707 DAG size of output: 1000 [2021-07-14 20:39:25,682 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 687 DAG size of output: 712 [2021-07-14 20:39:26,506 WARN L205 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 683 DAG size of output: 877 [2021-07-14 20:39:27,025 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 729 [2021-07-14 20:39:27,878 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 262 [2021-07-14 20:39:28,089 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 300 [2021-07-14 20:39:28,323 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 374 [2021-07-14 20:39:29,256 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 229 [2021-07-14 20:39:30,120 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 344 [2021-07-14 20:39:31,090 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 334 [2021-07-14 20:39:32,213 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 369 [2021-07-14 20:39:32,664 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 560 [2021-07-14 20:39:33,520 WARN L205 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 902 DAG size of output: 726 [2021-07-14 20:39:34,541 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 962 DAG size of output: 768 [2021-07-14 20:39:35,832 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1071 DAG size of output: 879 [2021-07-14 20:39:37,193 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1304 DAG size of output: 904 [2021-07-14 20:39:39,204 WARN L205 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 1744 DAG size of output: 1304 [2021-07-14 20:39:41,933 WARN L205 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 2015 DAG size of output: 1655 [2021-07-14 20:39:42,826 WARN L205 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 879 [2021-07-14 20:39:43,211 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 490 [2021-07-14 20:39:43,518 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 491 [2021-07-14 20:39:44,848 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 260 [2021-07-14 20:39:45,763 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 289 [2021-07-14 20:39:46,050 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 317 [2021-07-14 20:39:46,462 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 433 [2021-07-14 20:39:47,214 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 666 [2021-07-14 20:39:48,332 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 945 DAG size of output: 803 [2021-07-14 20:39:48,521 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 354 [2021-07-14 20:39:49,247 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 338 [2021-07-14 20:39:49,434 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 377 [2021-07-14 20:39:49,739 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 515 DAG size of output: 443 [2021-07-14 20:39:51,082 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1314 DAG size of output: 1007 [2021-07-14 20:39:53,078 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 1586 DAG size of output: 1355 [2021-07-14 20:39:58,289 WARN L205 SmtUtils]: Spent 5.20 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2064 [2021-07-14 20:40:05,445 WARN L205 SmtUtils]: Spent 7.14 s on a formula simplification. DAG size of input: 2989 DAG size of output: 2220 [2021-07-14 20:40:13,481 WARN L205 SmtUtils]: Spent 8.02 s on a formula simplification. DAG size of input: 3049 DAG size of output: 2305 [2021-07-14 20:40:14,199 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 573 [2021-07-14 20:40:14,936 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 296 [2021-07-14 20:40:15,117 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 358 [2021-07-14 20:40:15,586 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 275 [2021-07-14 20:40:15,878 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 451 [2021-07-14 20:40:16,881 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 215 [2021-07-14 20:40:17,042 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 254 [2021-07-14 20:40:17,281 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 348 [2021-07-14 20:40:17,601 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 399 [2021-07-14 20:40:17,989 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 482 DAG size of output: 425 [2021-07-14 20:40:18,512 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 485 [2021-07-14 20:40:19,114 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 521 [2021-07-14 20:40:20,494 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 328 [2021-07-14 20:40:20,774 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 369 [2021-07-14 20:40:21,127 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 394 [2021-07-14 20:40:21,618 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 469 DAG size of output: 433 [2021-07-14 20:40:22,209 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 517 [2021-07-14 20:40:22,917 WARN L205 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 580 [2021-07-14 20:40:24,328 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 978 DAG size of output: 863 [2021-07-14 20:40:25,307 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 202 [2021-07-14 20:40:25,482 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 256 [2021-07-14 20:40:25,747 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 425 DAG size of output: 384 [2021-07-14 20:40:26,096 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 442 [2021-07-14 20:40:26,295 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 292 [2021-07-14 20:40:26,982 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 328 [2021-07-14 20:40:27,222 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 391 [2021-07-14 20:40:27,537 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 450 [2021-07-14 20:40:28,277 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 639 [2021-07-14 20:40:29,437 WARN L205 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 800 DAG size of output: 715 [2021-07-14 20:40:32,079 WARN L205 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 1872 DAG size of output: 1482 [2021-07-14 20:40:35,660 WARN L205 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 2070 DAG size of output: 1568 [2021-07-14 20:40:35,811 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 361 [2021-07-14 20:40:36,512 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 344 [2021-07-14 20:40:36,719 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 367 [2021-07-14 20:40:37,356 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 246 [2021-07-14 20:40:37,746 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 486 [2021-07-14 20:40:38,898 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 243 [2021-07-14 20:40:39,059 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 266 [2021-07-14 20:40:39,277 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 324 [2021-07-14 20:40:39,595 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 525 DAG size of output: 457 [2021-07-14 20:40:40,042 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 599 [2021-07-14 20:40:40,977 WARN L205 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 817 [2021-07-14 20:40:42,283 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1006 DAG size of output: 867 [2021-07-14 20:40:43,410 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 318 [2021-07-14 20:40:43,607 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 388 [2021-07-14 20:40:43,852 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 406 [2021-07-14 20:40:44,160 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 422 [2021-07-14 20:40:44,559 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 470 [2021-07-14 20:40:46,430 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1433 DAG size of output: 1082 [2021-07-14 20:40:51,986 WARN L205 SmtUtils]: Spent 5.55 s on a formula simplification. DAG size of input: 2994 DAG size of output: 2129 [2021-07-14 20:40:58,279 WARN L205 SmtUtils]: Spent 6.28 s on a formula simplification. DAG size of input: 3038 DAG size of output: 2179 [2021-07-14 20:41:13,969 WARN L205 SmtUtils]: Spent 15.67 s on a formula simplification. DAG size of input: 5719 DAG size of output: 3928 [2021-07-14 20:41:44,369 WARN L205 SmtUtils]: Spent 30.37 s on a formula simplification. DAG size of input: 8989 DAG size of output: 5710 [2021-07-14 20:41:45,495 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 329 [2021-07-14 20:41:45,684 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 340 [2021-07-14 20:42:19,758 WARN L205 SmtUtils]: Spent 34.06 s on a formula simplification. DAG size of input: 9287 DAG size of output: 5929 [2021-07-14 20:42:59,979 WARN L205 SmtUtils]: Spent 40.17 s on a formula simplification. DAG size of input: 10982 DAG size of output: 7649 [2021-07-14 20:43:01,149 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 295 [2021-07-14 20:43:01,363 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 410 [2021-07-14 20:43:01,615 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 416 [2021-07-14 20:43:42,539 WARN L205 SmtUtils]: Spent 40.90 s on a formula simplification. DAG size of input: 11394 DAG size of output: 7943 [2021-07-14 20:44:24,059 WARN L205 SmtUtils]: Spent 41.47 s on a formula simplification. DAG size of input: 11649 DAG size of output: 8097 [2021-07-14 20:45:13,061 WARN L205 SmtUtils]: Spent 48.95 s on a formula simplification. DAG size of input: 12976 DAG size of output: 9218 [2021-07-14 20:45:16,814 WARN L205 SmtUtils]: Spent 3.70 s on a formula simplification. DAG size of input: 1243 DAG size of output: 1636 [2021-07-14 20:45:16,988 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 1238 [2021-07-14 20:45:18,609 WARN L205 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 1217 DAG size of output: 1216 [2021-07-14 20:45:19,278 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 240 [2021-07-14 20:45:22,410 WARN L205 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 1215 DAG size of output: 1779 [2021-07-14 20:45:22,569 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1093 DAG size of output: 1093 [2021-07-14 20:45:22,716 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1052 DAG size of output: 1052 [2021-07-14 20:45:23,870 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 686 DAG size of output: 991 [2021-07-14 20:45:24,598 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 682 DAG size of output: 739 [2021-07-14 20:45:25,590 WARN L205 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 766 [2021-07-14 20:45:26,386 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 791 [2021-07-14 20:45:26,750 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 441 [2021-07-14 20:45:27,586 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 258 [2021-07-14 20:45:27,765 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 291 [2021-07-14 20:45:28,172 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 348 [2021-07-14 20:45:28,530 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 453 [2021-07-14 20:45:28,971 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 477 [2021-07-14 20:45:29,595 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 290 [2021-07-14 20:45:30,365 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 207 [2021-07-14 20:45:30,625 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 417 [2021-07-14 20:45:30,972 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 435 [2021-07-14 20:45:31,826 WARN L205 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 758 [2021-07-14 20:45:32,947 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 1152 DAG size of output: 843 [2021-07-14 20:45:34,500 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1015 [2021-07-14 20:45:35,462 WARN L205 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 765 [2021-07-14 20:45:36,647 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 675 DAG size of output: 790 [2021-07-14 20:45:36,961 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 428 [2021-07-14 20:45:37,707 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 281 [2021-07-14 20:45:37,937 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 501 DAG size of output: 391 [2021-07-14 20:45:38,315 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 464 [2021-07-14 20:45:38,572 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 267 [2021-07-14 20:45:39,261 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 234 [2021-07-14 20:45:39,442 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 259 [2021-07-14 20:45:40,302 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 265 [2021-07-14 20:45:40,493 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 290 [2021-07-14 20:45:40,915 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 384 [2021-07-14 20:45:41,047 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 242 [2021-07-14 20:45:41,895 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 261 [2021-07-14 20:45:42,442 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 319 [2021-07-14 20:45:42,749 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 344 [2021-07-14 20:45:43,584 WARN L205 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 516 [2021-07-14 20:45:44,657 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 592 DAG size of output: 578 [2021-07-14 20:45:46,046 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 819 DAG size of output: 697 [2021-07-14 20:45:47,891 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 1184 DAG size of output: 905 [2021-07-14 20:45:50,232 WARN L205 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 1312 DAG size of output: 996 [2021-07-14 20:45:53,190 WARN L205 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 1416 DAG size of output: 1170 [2021-07-14 20:45:58,034 WARN L205 SmtUtils]: Spent 4.84 s on a formula simplification. DAG size of input: 1833 DAG size of output: 1517 [2021-07-14 20:46:04,584 WARN L205 SmtUtils]: Spent 6.54 s on a formula simplification. DAG size of input: 2174 DAG size of output: 1614 [2021-07-14 20:46:05,004 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 546 [2021-07-14 20:46:05,206 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 391 [2021-07-14 20:46:05,426 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 417 [2021-07-14 20:46:05,785 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 455 [2021-07-14 20:46:07,302 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 192 [2021-07-14 20:46:07,436 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 216 [2021-07-14 20:46:07,630 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 246 [2021-07-14 20:46:07,886 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 330 [2021-07-14 20:46:08,298 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 656 DAG size of output: 454 [2021-07-14 20:46:08,855 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 836 DAG size of output: 572 [2021-07-14 20:46:08,987 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 304 [2021-07-14 20:46:09,155 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 323 [2021-07-14 20:46:09,262 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 263 [2021-07-14 20:46:10,470 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 162 [2021-07-14 20:46:10,649 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 220 [2021-07-14 20:46:10,860 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 247 [2021-07-14 20:46:11,166 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 336 [2021-07-14 20:46:11,565 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 404 [2021-07-14 20:46:12,175 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 290 [2021-07-14 20:46:12,795 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 847 DAG size of output: 578 [2021-07-14 20:46:14,108 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 933 DAG size of output: 641 [2021-07-14 20:46:15,640 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 960 DAG size of output: 668 [2021-07-14 20:46:17,690 WARN L205 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 1138 DAG size of output: 701 [2021-07-14 20:46:17,944 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 487 [2021-07-14 20:46:18,212 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-07-14 20:46:18,416 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-07-14 20:46:18,621 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 362 [2021-07-14 20:46:19,808 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 219 [2021-07-14 20:46:20,018 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 243 [2021-07-14 20:46:20,283 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 341 [2021-07-14 20:46:20,658 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 613 DAG size of output: 403 [2021-07-14 20:46:21,180 WARN L205 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 476 [2021-07-14 20:46:21,372 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-07-14 20:46:21,567 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-07-14 20:46:22,753 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 313 [2021-07-14 20:46:22,937 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 333 [2021-07-14 20:46:23,218 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 401 [2021-07-14 20:46:23,626 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 606 DAG size of output: 471 [2021-07-14 20:46:24,667 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 837 DAG size of output: 632 [2021-07-14 20:46:26,047 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1009 DAG size of output: 667 [2021-07-14 20:46:29,504 WARN L205 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 1961 DAG size of output: 1076 [2021-07-14 20:46:39,597 WARN L205 SmtUtils]: Spent 10.08 s on a formula simplification. DAG size of input: 3390 DAG size of output: 2173 [2021-07-14 20:46:51,427 WARN L205 SmtUtils]: Spent 11.44 s on a formula simplification. DAG size of input: 3507 DAG size of output: 2263 [2021-07-14 20:47:05,001 WARN L205 SmtUtils]: Spent 13.55 s on a formula simplification. DAG size of input: 4235 DAG size of output: 2787 [2021-07-14 20:47:18,960 WARN L205 SmtUtils]: Spent 13.94 s on a formula simplification. DAG size of input: 4456 DAG size of output: 2926 [2021-07-14 20:47:32,927 WARN L205 SmtUtils]: Spent 13.94 s on a formula simplification. DAG size of input: 4635 DAG size of output: 3051 [2021-07-14 20:47:49,071 WARN L205 SmtUtils]: Spent 16.12 s on a formula simplification. DAG size of input: 5120 DAG size of output: 3306 [2021-07-14 20:48:56,311 WARN L205 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 16679 DAG size of output: 11341 [2021-07-14 20:50:10,982 WARN L205 SmtUtils]: Spent 1.24 m on a formula simplification. DAG size of input: 16692 DAG size of output: 11355 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown