/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.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 15:32:29,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 15:32:29,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 15:32:29,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 15:32:29,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 15:32:29,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 15:32:29,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 15:32:29,927 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.epf [2021-07-14 15:32:29,953 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 15:32:29,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 15:32:29,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 15:32:29,954 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 15:32:29,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 15:32:29,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 15:32:29,956 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 15:32:29,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 15:32:29,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 15:32:29,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 15:32:29,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 15:32:29,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 15:32:29,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 15:32:29,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 15:32:29,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 15:32:29,958 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 15:32:29,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 15:32:29,958 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 15:32:29,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 15:32:29,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 15:32:29,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 15:32:29,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 15:32:29,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 15:32:29,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 15:32:29,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 15:32:29,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 15:32:29,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 15:32:29,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 15:32:29,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 15:32:29,959 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 15:32:29,959 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 15:32:29,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 15:32:29,959 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 15:32:29,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 15:32:30,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 15:32:30,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 15:32:30,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 15:32:30,204 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 15:32:30,205 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 15:32:30,205 INFO L432 ainManager$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 15:32:30,205 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 15:32:30,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 15:32:30,241 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 15:32:30,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 15:32:30,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 15:32:30,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 15:32:30,250 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 03:32:30" (1/1) ... [2021-07-14 15:32:30,254 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 03:32:30" (1/1) ... [2021-07-14 15:32:30,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 15:32:30,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 15:32:30,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 15:32:30,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 15:32:30,267 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 03:32:30" (1/1) ... [2021-07-14 15:32:30,267 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 03:32:30" (1/1) ... [2021-07-14 15:32:30,267 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 03:32:30" (1/1) ... [2021-07-14 15:32:30,268 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 03:32:30" (1/1) ... [2021-07-14 15:32:30,270 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 03:32:30" (1/1) ... [2021-07-14 15:32:30,272 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 03:32:30" (1/1) ... [2021-07-14 15:32:30,272 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 03:32:30" (1/1) ... [2021-07-14 15:32:30,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 15:32:30,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 15:32:30,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 15:32:30,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 15:32:30,277 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 03:32:30" (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 15:32:30,331 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 15:32:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 15:32:30,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 15:32:30,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 15:32:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 15:32:30,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 15:32:30,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 15:32:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 15:32:30,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 15:32:30,334 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 15:32:30,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 15:32:30,520 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-14 15:32:30,521 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-14 15:32:30,521 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-07-14 15:32:30,522 INFO L202 PluginConnector]: Adding new model unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:32:30 BoogieIcfgContainer [2021-07-14 15:32:30,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 15:32:30,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 15:32:30,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 15:32:30,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 15:32:30,525 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 03:32:30" (1/2) ... [2021-07-14 15:32:30,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d187b55 and model type unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:32:30, skipping insertion in model container [2021-07-14 15:32:30,526 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 03:32:30" (2/2) ... [2021-07-14 15:32:30,527 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.bpl [2021-07-14 15:32:30,530 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 15:32:30,530 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 15:32:30,530 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 15:32:30,531 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 15:32:30,569 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 15:32:30,585 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 15:32:30,629 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 15:32:30,630 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 15:32:30,630 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 15:32:30,630 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 15:32:30,630 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 15:32:30,630 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 15:32:30,630 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 15:32:30,630 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 15:32:30,682 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:30,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:30,686 INFO L82 PathProgramCache]: Analyzing trace with hash 327878231, now seen corresponding path program 1 times [2021-07-14 15:32:30,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:30,691 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288697901] [2021-07-14 15:32:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:30,770 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 15:32:30,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:30,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288697901] [2021-07-14 15:32:30,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288697901] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 15:32:30,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 15:32:30,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 15:32:30,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123566367] [2021-07-14 15:32:30,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 15:32:30,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:30,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 15:32:30,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 15:32:30,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:30,784 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:30,785 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 15:32:30,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:30,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 15:32:30,795 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:30,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:30,796 INFO L82 PathProgramCache]: Analyzing trace with hash 652599305, now seen corresponding path program 1 times [2021-07-14 15:32:30,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:30,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499753464] [2021-07-14 15:32:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:30,821 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 15:32:30,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:30,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499753464] [2021-07-14 15:32:30,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499753464] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:30,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130625259] [2021-07-14 15:32:30,822 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 15:32:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:30,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-14 15:32:30,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:30,930 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 15:32:30,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130625259] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:30,930 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:30,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-07-14 15:32:30,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284381177] [2021-07-14 15:32:30,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 15:32:30,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:30,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 15:32:30,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 15:32:30,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:30,935 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:30,935 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 15:32:30,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:30,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:30,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:30,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:31,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:32:31,187 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:31,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:31,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1221187306, now seen corresponding path program 1 times [2021-07-14 15:32:31,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:31,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813438430] [2021-07-14 15:32:31,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:31,240 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 15:32:31,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:31,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813438430] [2021-07-14 15:32:31,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813438430] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:31,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417646623] [2021-07-14 15:32:31,240 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 15:32:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:31,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 15:32:31,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:31,318 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 15:32:31,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417646623] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:31,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:31,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-14 15:32:31,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655538256] [2021-07-14 15:32:31,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 15:32:31,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:31,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 15:32:31,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 15:32:31,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:31,319 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:31,320 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 15:32:31,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:31,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:31,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:31,552 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:32:31,553 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:31,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:31,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1598119496, now seen corresponding path program 2 times [2021-07-14 15:32:31,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:31,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254804204] [2021-07-14 15:32:31,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:31,618 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 15:32:31,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:31,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254804204] [2021-07-14 15:32:31,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254804204] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:31,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833573783] [2021-07-14 15:32:31,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 15:32:31,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 15:32:31,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:31,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 15:32:31,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:31,705 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 15:32:31,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833573783] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:31,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:31,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-07-14 15:32:31,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230535352] [2021-07-14 15:32:31,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 15:32:31,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:31,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 15:32:31,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-14 15:32:31,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:31,707 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:31,707 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 15:32:31,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:31,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:31,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:31,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:31,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:31,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:32:31,953 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:31,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:31,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1197682858, now seen corresponding path program 3 times [2021-07-14 15:32:31,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:31,954 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65737767] [2021-07-14 15:32:31,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:31,998 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 15:32:31,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:31,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65737767] [2021-07-14 15:32:31,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65737767] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:31,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889917062] [2021-07-14 15:32:31,999 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) [2021-07-14 15:32:32,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 15:32:32,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:32,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-14 15:32:32,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:32:32,076 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 15:32:32,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889917062] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:32,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:32,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-14 15:32:32,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761904664] [2021-07-14 15:32:32,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 15:32:32,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:32,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 15:32:32,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-14 15:32:32,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:32,077 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:32,078 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 15:32:32,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:32,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:32,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:32,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:32,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:32,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:32,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:32:32,335 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:32,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:32,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1968209912, now seen corresponding path program 4 times [2021-07-14 15:32:32,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:32,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482602425] [2021-07-14 15:32:32,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:32,370 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 15:32:32,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:32,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482602425] [2021-07-14 15:32:32,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482602425] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:32,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273190305] [2021-07-14 15:32:32,371 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 15:32:32,403 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 15:32:32,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:32,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 15:32:32,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:32,544 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:32:32,544 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 15:32:32,613 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 15:32:32,615 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:32:32,616 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 15:32:32,616 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-07-14 15:32:32,622 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 15:32:32,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273190305] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:32,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:32,622 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-07-14 15:32:32,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430572882] [2021-07-14 15:32:32,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-14 15:32:32,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:32,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-14 15:32:32,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-07-14 15:32:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:32,624 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:32,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 15:32:32,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:32,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:32,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:32,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:32,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:32,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:32,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:32,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:32,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:32:32,877 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:32,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:32,877 INFO L82 PathProgramCache]: Analyzing trace with hash -84744810, now seen corresponding path program 5 times [2021-07-14 15:32:32,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:32,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221929488] [2021-07-14 15:32:32,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:32,931 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 15:32:32,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:32,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221929488] [2021-07-14 15:32:32,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221929488] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:32,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408570924] [2021-07-14 15:32:32,932 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 15:32:32,957 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-14 15:32:32,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:32,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-14 15:32:32,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:32,998 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 15:32:32,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408570924] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:32,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:32,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-07-14 15:32:32,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445624410] [2021-07-14 15:32:32,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-14 15:32:32,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:33,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-14 15:32:33,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-07-14 15:32:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:33,000 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:33,000 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 15:32:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:33,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:33,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-14 15:32:33,301 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:33,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:33,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1690948905, now seen corresponding path program 6 times [2021-07-14 15:32:33,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:33,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146122180] [2021-07-14 15:32:33,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:33,390 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 15:32:33,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:33,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146122180] [2021-07-14 15:32:33,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146122180] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:33,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526368614] [2021-07-14 15:32:33,391 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 15:32:33,427 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-14 15:32:33,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:33,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-14 15:32:33,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:33,490 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 15:32:33,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526368614] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:33,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:33,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-07-14 15:32:33,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668308915] [2021-07-14 15:32:33,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 15:32:33,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:33,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 15:32:33,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-07-14 15:32:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:33,492 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:33,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 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 15:32:33,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:33,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:33,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:33,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:33,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:33,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:33,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:33,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:33,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:33,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-14 15:32:33,810 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:33,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:33,810 INFO L82 PathProgramCache]: Analyzing trace with hash -775286985, now seen corresponding path program 7 times [2021-07-14 15:32:33,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:33,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403328862] [2021-07-14 15:32:33,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:33,904 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 15:32:33,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:33,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403328862] [2021-07-14 15:32:33,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403328862] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:33,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712907333] [2021-07-14 15:32:33,905 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 15:32:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:33,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 15:32:33,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:34,016 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 15:32:34,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712907333] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:34,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:34,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 15:32:34,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94425050] [2021-07-14 15:32:34,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 15:32:34,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:34,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 15:32:34,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-07-14 15:32:34,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:34,018 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:34,018 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 15:32:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:34,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:34,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:34,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-14 15:32:34,373 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:34,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:34,373 INFO L82 PathProgramCache]: Analyzing trace with hash 80811753, now seen corresponding path program 8 times [2021-07-14 15:32:34,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:34,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080067353] [2021-07-14 15:32:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:34,477 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 15:32:34,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:34,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080067353] [2021-07-14 15:32:34,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080067353] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:34,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873054163] [2021-07-14 15:32:34,477 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 15:32:34,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 15:32:34,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:34,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 15:32:34,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:34,606 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 15:32:34,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873054163] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:34,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:34,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-07-14 15:32:34,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000637919] [2021-07-14 15:32:34,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 15:32:34,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:34,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 15:32:34,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-07-14 15:32:34,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:34,607 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:34,607 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 15:32:34,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:34,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:34,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:34,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:34,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:34,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:34,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:34,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:34,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:34,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:34,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-14 15:32:34,989 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:34,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:34,989 INFO L82 PathProgramCache]: Analyzing trace with hash 850068855, now seen corresponding path program 9 times [2021-07-14 15:32:34,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:34,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271967247] [2021-07-14 15:32:34,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:35,061 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 15:32:35,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:35,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271967247] [2021-07-14 15:32:35,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271967247] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:35,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176465728] [2021-07-14 15:32:35,061 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 15:32:35,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 15:32:35,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:35,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-14 15:32:35,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:35,405 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-14 15:32:35,406 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:32:35,406 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 15:32:36,392 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 274 [2021-07-14 15:32:37,797 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 15:32:37,799 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:32:37,799 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 15:32:37,799 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-07-14 15:32:37,804 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 15:32:37,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176465728] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:37,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:37,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2021-07-14 15:32:37,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707900028] [2021-07-14 15:32:37,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 15:32:37,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:37,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 15:32:37,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-14 15:32:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:37,806 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:37,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:37,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:37,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 15:32:38,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-14 15:32:38,153 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:38,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:38,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1072764759, now seen corresponding path program 10 times [2021-07-14 15:32:38,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:38,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129797174] [2021-07-14 15:32:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:38,235 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 15:32:38,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:38,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129797174] [2021-07-14 15:32:38,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129797174] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:38,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493855238] [2021-07-14 15:32:38,235 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 15:32:38,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 15:32:38,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:38,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 15:32:38,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:38,316 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 15:32:38,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493855238] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:38,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:38,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-07-14 15:32:38,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911377903] [2021-07-14 15:32:38,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 15:32:38,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:38,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 15:32:38,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-14 15:32:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:38,317 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:38,317 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 15:32:38,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:38,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:38,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:38,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 15:32:38,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 15:32:38,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:32:38,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:32:38,697 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:38,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:38,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1127101558, now seen corresponding path program 11 times [2021-07-14 15:32:38,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:38,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075252664] [2021-07-14 15:32:38,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:38,815 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 15:32:38,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:38,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075252664] [2021-07-14 15:32:38,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075252664] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:38,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23080509] [2021-07-14 15:32:38,816 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 15:32:38,860 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 15:32:38,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:38,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-14 15:32:38,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:38,982 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 15:32:38,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23080509] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:38,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:38,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-07-14 15:32:38,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797106579] [2021-07-14 15:32:38,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 15:32:38,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:38,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 15:32:38,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-07-14 15:32:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:38,983 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:38,983 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 15:32:38,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:38,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:32:38,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:32:39,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 15:32:39,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable314 [2021-07-14 15:32:39,533 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:39,533 INFO L82 PathProgramCache]: Analyzing trace with hash 119935784, now seen corresponding path program 12 times [2021-07-14 15:32:39,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:39,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693505353] [2021-07-14 15:32:39,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:39,664 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 15:32:39,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:39,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693505353] [2021-07-14 15:32:39,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693505353] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:39,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436580497] [2021-07-14 15:32:39,664 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 15:32:39,703 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 15:32:39,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:39,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-14 15:32:39,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:39,961 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:32:39,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436580497] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:39,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:39,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 26 [2021-07-14 15:32:39,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585217428] [2021-07-14 15:32:39,962 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-14 15:32:39,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:39,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-14 15:32:39,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-07-14 15:32:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:39,963 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:39,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 15:32:39,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:32:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 15:32:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 15:32:40,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:32:40,677 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:40,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:40,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1037432138, now seen corresponding path program 13 times [2021-07-14 15:32:40,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:40,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44954993] [2021-07-14 15:32:40,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:40,857 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 15:32:40,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:40,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44954993] [2021-07-14 15:32:40,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44954993] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:40,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566895196] [2021-07-14 15:32:40,858 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 15:32:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:40,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 23 conjunts are in the unsatisfiable core [2021-07-14 15:32:40,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:41,062 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 15:32:41,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566895196] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:41,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:32:41,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-07-14 15:32:41,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045459739] [2021-07-14 15:32:41,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 15:32:41,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:32:41,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 15:32:41,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-07-14 15:32:41,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:41,064 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:32:41,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:41,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 15:32:41,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:32:41,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 15:32:41,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 15:32:41,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:32:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:32:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:32:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 15:32:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:32:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:32:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 15:32:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 15:32:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:32:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-14 15:32:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 15:32:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 15:32:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 15:32:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 15:32:41,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 15:32:41,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable316 [2021-07-14 15:32:41,665 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:32:41,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:32:41,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1738867944, now seen corresponding path program 14 times [2021-07-14 15:32:41,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:32:41,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449344459] [2021-07-14 15:32:41,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:32:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:32:41,778 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 15:32:41,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:32:41,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449344459] [2021-07-14 15:32:41,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449344459] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:32:41,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976608265] [2021-07-14 15:32:41,778 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 15:32:41,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 15:32:41,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:32:41,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-14 15:32:41,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:32:42,436 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-07-14 15:32:42,437 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:32:42,437 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 15:32:43,227 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 380 [2021-07-14 15:32:43,381 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 383 [2021-07-14 15:32:44,364 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 321 [2021-07-14 15:32:44,557 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 513 [2021-07-14 15:32:44,802 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 516 [2021-07-14 15:32:45,254 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 757 [2021-07-14 15:32:45,825 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 938 DAG size of output: 782 [2021-07-14 15:32:46,609 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 397 [2021-07-14 15:32:46,784 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 432 [2021-07-14 15:32:46,999 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 497 DAG size of output: 439 [2021-07-14 15:32:47,688 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 414 DAG size of output: 387 [2021-07-14 15:32:48,300 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 392 [2021-07-14 15:32:48,573 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 718 DAG size of output: 687 [2021-07-14 15:32:48,921 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 720 [2021-07-14 15:32:49,351 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 760 DAG size of output: 727 [2021-07-14 15:32:50,077 WARN L205 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 1118 DAG size of output: 985 [2021-07-14 15:32:50,928 WARN L205 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 1140 DAG size of output: 1008 [2021-07-14 15:32:52,424 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1924 DAG size of output: 1536 [2021-07-14 15:32:53,478 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 483 [2021-07-14 15:32:53,686 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 486 [2021-07-14 15:32:54,459 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 347 [2021-07-14 15:32:54,845 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 711 [2021-07-14 15:32:55,303 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 893 DAG size of output: 737 [2021-07-14 15:32:56,016 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 367 [2021-07-14 15:32:56,168 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 402 [2021-07-14 15:32:56,349 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 470 DAG size of output: 408 [2021-07-14 15:32:56,938 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 370 [2021-07-14 15:32:57,488 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 391 DAG size of output: 363 [2021-07-14 15:32:57,724 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 691 DAG size of output: 657 [2021-07-14 15:32:58,023 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 690 [2021-07-14 15:32:58,393 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 696 [2021-07-14 15:32:59,024 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 1082 DAG size of output: 940 [2021-07-14 15:32:59,764 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 964 [2021-07-14 15:33:01,076 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1864 DAG size of output: 1466 [2021-07-14 15:33:04,362 WARN L205 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 3619 DAG size of output: 2834 [2021-07-14 15:33:08,153 WARN L205 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 3664 DAG size of output: 2879 [2021-07-14 15:33:12,467 WARN L205 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-07-14 15:33:16,768 WARN L205 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-07-14 15:33:21,934 WARN L205 SmtUtils]: Spent 5.15 s on a formula simplification. DAG size of input: 3707 DAG size of output: 2922 [2021-07-14 15:33:26,724 WARN L205 SmtUtils]: Spent 4.76 s on a formula simplification. DAG size of input: 2924 DAG size of output: 2915 [2021-07-14 15:33:31,883 WARN L205 SmtUtils]: Spent 5.14 s on a formula simplification. DAG size of input: 2912 DAG size of output: 3217 [2021-07-14 15:33:39,955 WARN L205 SmtUtils]: Spent 8.05 s on a formula simplification. DAG size of input: 2696 DAG size of output: 3553 [2021-07-14 15:33:40,131 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 2516 [2021-07-14 15:33:41,208 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 278 [2021-07-14 15:33:43,101 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 2495 DAG size of output: 2494 [2021-07-14 15:33:49,639 WARN L205 SmtUtils]: Spent 6.52 s on a formula simplification. DAG size of input: 2493 DAG size of output: 3700 [2021-07-14 15:33:49,945 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 2169 DAG size of output: 2169 [2021-07-14 15:33:50,232 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 2126 DAG size of output: 2126 [2021-07-14 15:33:51,208 WARN L205 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 977 [2021-07-14 15:33:51,493 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 339 [2021-07-14 15:33:52,020 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 258 [2021-07-14 15:33:52,971 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 257 [2021-07-14 15:33:53,193 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 340 [2021-07-14 15:33:53,502 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 396 [2021-07-14 15:33:53,967 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 799 DAG size of output: 592 [2021-07-14 15:33:54,778 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 185 [2021-07-14 15:33:54,911 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 243 [2021-07-14 15:33:55,247 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 265 [2021-07-14 15:33:55,558 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 425 [2021-07-14 15:33:56,015 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 623 [2021-07-14 15:33:57,062 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 1090 DAG size of output: 844 [2021-07-14 15:33:58,340 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 322 [2021-07-14 15:33:58,625 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 350 [2021-07-14 15:33:59,559 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 285 [2021-07-14 15:33:59,801 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 391 [2021-07-14 15:34:00,117 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 449 [2021-07-14 15:34:01,013 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 238 [2021-07-14 15:34:01,214 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 360 [2021-07-14 15:34:01,480 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 396 [2021-07-14 15:34:01,819 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 455 [2021-07-14 15:34:02,554 WARN L205 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 659 [2021-07-14 15:34:03,508 WARN L205 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 827 DAG size of output: 710 [2021-07-14 15:34:04,367 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 245 [2021-07-14 15:34:04,540 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 305 [2021-07-14 15:34:04,772 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 409 [2021-07-14 15:34:05,077 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 526 DAG size of output: 472 [2021-07-14 15:34:06,075 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 221 [2021-07-14 15:34:06,228 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 275 [2021-07-14 15:34:06,433 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 374 [2021-07-14 15:34:06,708 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 490 DAG size of output: 411 [2021-07-14 15:34:07,066 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 475 [2021-07-14 15:34:07,806 WARN L205 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 831 DAG size of output: 714 [2021-07-14 15:34:09,638 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1682 DAG size of output: 1237 [2021-07-14 15:34:12,629 WARN L205 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 2518 DAG size of output: 1697 [2021-07-14 15:34:16,064 WARN L205 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 2537 DAG size of output: 1736 [2021-07-14 15:34:20,504 WARN L205 SmtUtils]: Spent 4.43 s on a formula simplification. DAG size of input: 2890 DAG size of output: 1831 [2021-07-14 15:34:21,612 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 700 DAG size of output: 1050 [2021-07-14 15:34:21,979 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 660 [2021-07-14 15:34:22,570 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 647 DAG size of output: 823 [2021-07-14 15:34:23,321 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 219 [2021-07-14 15:34:23,564 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 257 [2021-07-14 15:34:23,769 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 285 [2021-07-14 15:34:24,037 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 348 [2021-07-14 15:34:24,420 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 513 [2021-07-14 15:34:24,610 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 429 [2021-07-14 15:34:25,558 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 283 [2021-07-14 15:34:25,747 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 309 [2021-07-14 15:34:26,638 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 270 [2021-07-14 15:34:26,802 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 296 [2021-07-14 15:34:27,183 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 492 [2021-07-14 15:34:27,711 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 712 DAG size of output: 624 [2021-07-14 15:34:28,474 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 814 [2021-07-14 15:34:29,694 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1058 [2021-07-14 15:34:31,383 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1723 DAG size of output: 1396 [2021-07-14 15:34:32,058 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 828 [2021-07-14 15:34:32,659 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 766 [2021-07-14 15:34:33,039 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 639 [2021-07-14 15:34:33,150 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 332 [2021-07-14 15:34:34,803 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 248 [2021-07-14 15:34:34,958 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 500 DAG size of output: 212 [2021-07-14 15:34:35,260 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 388 [2021-07-14 15:34:35,880 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 707 [2021-07-14 15:34:36,828 WARN L205 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 1357 DAG size of output: 863 [2021-07-14 15:34:38,214 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1729 DAG size of output: 1197 [2021-07-14 15:34:41,654 WARN L205 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 2363 DAG size of output: 1672 [2021-07-14 15:34:45,568 WARN L205 SmtUtils]: Spent 3.90 s on a formula simplification. DAG size of input: 2424 DAG size of output: 1716 [2021-07-14 15:34:51,150 WARN L205 SmtUtils]: Spent 5.57 s on a formula simplification. DAG size of input: 2831 DAG size of output: 1844 [2021-07-14 15:35:02,300 WARN L205 SmtUtils]: Spent 11.14 s on a formula simplification. DAG size of input: 5382 DAG size of output: 3237 [2021-07-14 15:35:03,564 WARN L205 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 707 DAG size of output: 1000 [2021-07-14 15:35:04,141 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 687 DAG size of output: 712 [2021-07-14 15:35:04,946 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 683 DAG size of output: 877 [2021-07-14 15:35:05,445 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 729 [2021-07-14 15:35:06,284 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 262 [2021-07-14 15:35:06,492 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 300 [2021-07-14 15:35:06,711 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 374 [2021-07-14 15:35:07,627 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 229 [2021-07-14 15:35:08,454 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 344 [2021-07-14 15:35:09,389 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 334 [2021-07-14 15:35:10,476 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 369 [2021-07-14 15:35:10,905 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 560 [2021-07-14 15:35:11,701 WARN L205 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 902 DAG size of output: 726 [2021-07-14 15:35:12,673 WARN L205 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 962 DAG size of output: 768 [2021-07-14 15:35:13,907 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1071 DAG size of output: 879 [2021-07-14 15:35:15,207 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1304 DAG size of output: 904 [2021-07-14 15:35:17,114 WARN L205 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 1744 DAG size of output: 1304 [2021-07-14 15:35:19,708 WARN L205 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 2015 DAG size of output: 1655 [2021-07-14 15:35:20,537 WARN L205 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 879 [2021-07-14 15:35:20,913 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 490 [2021-07-14 15:35:21,207 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 491 [2021-07-14 15:35:22,439 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 260 [2021-07-14 15:35:23,315 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 289 [2021-07-14 15:35:23,587 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 317 [2021-07-14 15:35:23,979 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 433 [2021-07-14 15:35:24,703 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 666 [2021-07-14 15:35:25,761 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 945 DAG size of output: 803 [2021-07-14 15:35:25,942 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 354 [2021-07-14 15:35:26,651 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 338 [2021-07-14 15:35:26,830 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 377 [2021-07-14 15:35:27,111 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 515 DAG size of output: 443 [2021-07-14 15:35:28,393 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1314 DAG size of output: 1007 [2021-07-14 15:35:30,276 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1586 DAG size of output: 1355 [2021-07-14 15:35:35,205 WARN L205 SmtUtils]: Spent 4.92 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2064 [2021-07-14 15:35:41,979 WARN L205 SmtUtils]: Spent 6.76 s on a formula simplification. DAG size of input: 2989 DAG size of output: 2220 [2021-07-14 15:35:49,585 WARN L205 SmtUtils]: Spent 7.59 s on a formula simplification. DAG size of input: 3049 DAG size of output: 2305 [2021-07-14 15:35:50,255 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 573 [2021-07-14 15:35:50,969 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 296 [2021-07-14 15:35:51,139 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 358 [2021-07-14 15:35:51,875 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 451 [2021-07-14 15:35:52,824 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 215 [2021-07-14 15:35:52,984 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 254 [2021-07-14 15:35:53,211 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 348 [2021-07-14 15:35:53,509 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 399 [2021-07-14 15:35:53,888 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 482 DAG size of output: 425 [2021-07-14 15:35:54,358 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 485 [2021-07-14 15:35:54,923 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 521 [2021-07-14 15:35:56,209 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 328 [2021-07-14 15:35:56,472 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 369 [2021-07-14 15:35:56,802 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 394 [2021-07-14 15:35:57,280 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 469 DAG size of output: 433 [2021-07-14 15:35:57,821 WARN L205 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 517 [2021-07-14 15:35:58,480 WARN L205 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 580 [2021-07-14 15:35:59,815 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 978 DAG size of output: 863 [2021-07-14 15:36:00,704 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 202 [2021-07-14 15:36:00,865 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 256 [2021-07-14 15:36:01,121 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 425 DAG size of output: 384 [2021-07-14 15:36:01,472 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 442 [2021-07-14 15:36:01,668 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 292 [2021-07-14 15:36:02,303 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 328 [2021-07-14 15:36:02,530 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 391 [2021-07-14 15:36:02,824 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 450 [2021-07-14 15:36:03,524 WARN L205 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 639 [2021-07-14 15:36:04,617 WARN L205 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 800 DAG size of output: 715 [2021-07-14 15:36:07,118 WARN L205 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 1872 DAG size of output: 1482 [2021-07-14 15:36:10,385 WARN L205 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 2070 DAG size of output: 1568 [2021-07-14 15:36:10,529 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 361 [2021-07-14 15:36:11,123 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 344 [2021-07-14 15:36:11,319 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 367 [2021-07-14 15:36:11,906 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 246 [2021-07-14 15:36:12,252 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 486 [2021-07-14 15:36:13,257 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 243 [2021-07-14 15:36:13,405 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 266 [2021-07-14 15:36:13,599 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 324 [2021-07-14 15:36:13,894 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 525 DAG size of output: 457 [2021-07-14 15:36:14,298 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 599 [2021-07-14 15:36:15,145 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 817 [2021-07-14 15:36:16,324 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 1006 DAG size of output: 867 [2021-07-14 15:36:17,390 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 318 [2021-07-14 15:36:17,565 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 388 [2021-07-14 15:36:17,799 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 406 [2021-07-14 15:36:18,085 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 422 [2021-07-14 15:36:18,462 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 470 [2021-07-14 15:36:20,223 WARN L205 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1433 DAG size of output: 1082 [2021-07-14 15:36:25,448 WARN L205 SmtUtils]: Spent 5.22 s on a formula simplification. DAG size of input: 2994 DAG size of output: 2129 [2021-07-14 15:36:31,344 WARN L205 SmtUtils]: Spent 5.88 s on a formula simplification. DAG size of input: 3038 DAG size of output: 2179 [2021-07-14 15:36:45,959 WARN L205 SmtUtils]: Spent 14.60 s on a formula simplification. DAG size of input: 5719 DAG size of output: 3928 [2021-07-14 15:37:14,226 WARN L205 SmtUtils]: Spent 28.24 s on a formula simplification. DAG size of input: 8989 DAG size of output: 5710 [2021-07-14 15:37:15,253 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 329 [2021-07-14 15:37:15,439 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 340 [2021-07-14 15:37:46,985 WARN L205 SmtUtils]: Spent 31.53 s on a formula simplification. DAG size of input: 9287 DAG size of output: 5929 [2021-07-14 15:38:24,502 WARN L205 SmtUtils]: Spent 37.47 s on a formula simplification. DAG size of input: 10982 DAG size of output: 7649 [2021-07-14 15:38:25,597 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 295 [2021-07-14 15:38:25,794 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 410 [2021-07-14 15:38:26,036 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 416 [2021-07-14 15:39:04,037 WARN L205 SmtUtils]: Spent 37.98 s on a formula simplification. DAG size of input: 11394 DAG size of output: 7943 [2021-07-14 15:39:42,834 WARN L205 SmtUtils]: Spent 38.75 s on a formula simplification. DAG size of input: 11649 DAG size of output: 8097 [2021-07-14 15:40:29,083 WARN L205 SmtUtils]: Spent 46.20 s on a formula simplification. DAG size of input: 12976 DAG size of output: 9218 [2021-07-14 15:40:32,638 WARN L205 SmtUtils]: Spent 3.51 s on a formula simplification. DAG size of input: 1243 DAG size of output: 1636 [2021-07-14 15:40:32,795 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 1238 [2021-07-14 15:40:34,267 WARN L205 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 1217 DAG size of output: 1216 [2021-07-14 15:40:37,889 WARN L205 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 1215 DAG size of output: 1779 [2021-07-14 15:40:38,044 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1093 DAG size of output: 1093 [2021-07-14 15:40:38,200 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1052 DAG size of output: 1052 [2021-07-14 15:40:39,303 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 686 DAG size of output: 991 [2021-07-14 15:40:40,000 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 682 DAG size of output: 739 [2021-07-14 15:40:40,943 WARN L205 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 766 [2021-07-14 15:40:41,710 WARN L205 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 791 [2021-07-14 15:40:42,048 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 441 [2021-07-14 15:40:42,764 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 258 [2021-07-14 15:40:42,936 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 291 [2021-07-14 15:40:43,331 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 348 [2021-07-14 15:40:43,679 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 453 [2021-07-14 15:40:44,105 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 477 [2021-07-14 15:40:45,680 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 417 [2021-07-14 15:40:45,993 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 435 [2021-07-14 15:40:46,808 WARN L205 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 758 [2021-07-14 15:40:47,869 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 1152 DAG size of output: 843 [2021-07-14 15:40:49,321 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1015 [2021-07-14 15:40:50,240 WARN L205 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 765 [2021-07-14 15:40:51,342 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 675 DAG size of output: 790 [2021-07-14 15:40:51,638 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 428 [2021-07-14 15:40:52,356 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 281 [2021-07-14 15:40:52,567 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 501 DAG size of output: 391 [2021-07-14 15:40:52,920 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 464 [2021-07-14 15:40:53,169 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 267 [2021-07-14 15:40:53,803 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 234 [2021-07-14 15:40:53,980 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 259 [2021-07-14 15:40:54,799 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 265 [2021-07-14 15:40:54,981 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 290 [2021-07-14 15:40:55,382 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 384 [2021-07-14 15:40:56,313 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 261 [2021-07-14 15:40:56,839 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 319 [2021-07-14 15:40:57,122 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 344 [2021-07-14 15:40:57,916 WARN L205 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 516 [2021-07-14 15:40:58,945 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 592 DAG size of output: 578 [2021-07-14 15:41:00,247 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 819 DAG size of output: 697 [2021-07-14 15:41:01,976 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1184 DAG size of output: 905 [2021-07-14 15:41:04,197 WARN L205 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 1312 DAG size of output: 996 [2021-07-14 15:41:06,961 WARN L205 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 1416 DAG size of output: 1170 [2021-07-14 15:41:11,563 WARN L205 SmtUtils]: Spent 4.60 s on a formula simplification. DAG size of input: 1833 DAG size of output: 1517 [2021-07-14 15:41:17,733 WARN L205 SmtUtils]: Spent 6.16 s on a formula simplification. DAG size of input: 2174 DAG size of output: 1614 [2021-07-14 15:41:18,133 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 546 [2021-07-14 15:41:18,331 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 391 [2021-07-14 15:41:18,539 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 417 [2021-07-14 15:41:18,879 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 455 [2021-07-14 15:41:20,429 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 216 [2021-07-14 15:41:20,608 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 246 [2021-07-14 15:41:20,855 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 330 [2021-07-14 15:41:21,245 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 656 DAG size of output: 454 [2021-07-14 15:41:21,779 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 836 DAG size of output: 572 [2021-07-14 15:41:21,901 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 304 [2021-07-14 15:41:22,069 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 323 [2021-07-14 15:41:23,302 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 162 [2021-07-14 15:41:23,474 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 220 [2021-07-14 15:41:23,677 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 247 [2021-07-14 15:41:23,974 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 336 [2021-07-14 15:41:24,347 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 404 [2021-07-14 15:41:24,930 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 290 [2021-07-14 15:41:25,521 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 847 DAG size of output: 578 [2021-07-14 15:41:26,755 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 933 DAG size of output: 641 [2021-07-14 15:41:28,200 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 960 DAG size of output: 668 [2021-07-14 15:41:30,141 WARN L205 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 1138 DAG size of output: 701 [2021-07-14 15:41:30,380 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 487 [2021-07-14 15:41:30,631 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-07-14 15:41:30,805 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-07-14 15:41:30,983 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 362 [2021-07-14 15:41:32,120 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 219 [2021-07-14 15:41:32,312 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 243 [2021-07-14 15:41:32,571 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 341 [2021-07-14 15:41:32,918 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 613 DAG size of output: 403 [2021-07-14 15:41:33,399 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 476 [2021-07-14 15:41:33,579 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-07-14 15:41:33,761 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-07-14 15:41:34,886 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 313 [2021-07-14 15:41:35,061 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 333 [2021-07-14 15:41:35,326 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 401 [2021-07-14 15:41:35,717 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 606 DAG size of output: 471 [2021-07-14 15:41:36,703 WARN L205 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 837 DAG size of output: 632 [2021-07-14 15:41:38,029 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1009 DAG size of output: 667 [2021-07-14 15:41:41,329 WARN L205 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 1961 DAG size of output: 1076 [2021-07-14 15:41:50,927 WARN L205 SmtUtils]: Spent 9.59 s on a formula simplification. DAG size of input: 3390 DAG size of output: 2173 [2021-07-14 15:42:02,044 WARN L205 SmtUtils]: Spent 10.75 s on a formula simplification. DAG size of input: 3507 DAG size of output: 2263 [2021-07-14 15:42:14,818 WARN L205 SmtUtils]: Spent 12.76 s on a formula simplification. DAG size of input: 4235 DAG size of output: 2787 [2021-07-14 15:42:27,857 WARN L205 SmtUtils]: Spent 13.02 s on a formula simplification. DAG size of input: 4456 DAG size of output: 2926 [2021-07-14 15:42:41,108 WARN L205 SmtUtils]: Spent 13.23 s on a formula simplification. DAG size of input: 4635 DAG size of output: 3051 [2021-07-14 15:42:56,352 WARN L205 SmtUtils]: Spent 15.22 s on a formula simplification. DAG size of input: 5120 DAG size of output: 3306 [2021-07-14 15:43:59,765 WARN L205 SmtUtils]: Spent 1.06 m on a formula simplification. DAG size of input: 16679 DAG size of output: 11341 [2021-07-14 15:45:09,851 WARN L205 SmtUtils]: Spent 1.17 m on a formula simplification. DAG size of input: 16692 DAG size of output: 11355 [2021-07-14 15:46:20,199 WARN L205 SmtUtils]: Spent 1.17 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