/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-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 15:29:07,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 15:29:07,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 15:29:07,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 15:29:07,501 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 15:29:07,539 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 15:29:07,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 15:29:07,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 15:29:07,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 15:29:07,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 15:29:07,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 15:29:07,543 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 15:29:07,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 15:29:07,543 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 15:29:07,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 15:29:07,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 15:29:07,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 15:29:07,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 15:29:07,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 15:29:07,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 15:29:07,545 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 15:29:07,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 15:29:07,545 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 15:29:07,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 15:29:07,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 15:29:07,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 15:29:07,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 15:29:07,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 15:29:07,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 15:29:07,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 15:29:07,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 15:29:07,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 15:29:07,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 15:29:07,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 15:29:07,547 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 15:29:07,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 15:29:07,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 15:29:07,548 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 15:29:07,548 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 15:29:07,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 15:29:07,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 15:29:07,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 15:29:07,918 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 15:29:07,920 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 15:29:07,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl [2021-07-14 15:29:07,921 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-2.wvr.bpl' [2021-07-14 15:29:07,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 15:29:07,953 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 15:29:07,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 15:29:07,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 15:29:07,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 15:29:07,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (1/1) ... [2021-07-14 15:29:07,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (1/1) ... [2021-07-14 15:29:07,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 15:29:07,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 15:29:07,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 15:29:07,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 15:29:07,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (1/1) ... [2021-07-14 15:29:07,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (1/1) ... [2021-07-14 15:29:07,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (1/1) ... [2021-07-14 15:29:07,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (1/1) ... [2021-07-14 15:29:07,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (1/1) ... [2021-07-14 15:29:07,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (1/1) ... [2021-07-14 15:29:07,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (1/1) ... [2021-07-14 15:29:07,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 15:29:07,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 15:29:07,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 15:29:07,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 15:29:07,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (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 15:29:08,058 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 15:29:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 15:29:08,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 15:29:08,058 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 15:29:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 15:29:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 15:29:08,059 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 15:29:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 15:29:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 15:29:08,061 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 15:29:08,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 15:29:08,332 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-14 15:29:08,333 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-14 15:29:08,333 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-07-14 15:29:08,335 INFO L202 PluginConnector]: Adding new model unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:29:08 BoogieIcfgContainer [2021-07-14 15:29:08,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 15:29:08,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 15:29:08,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 15:29:08,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 15:29:08,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 03:29:07" (1/2) ... [2021-07-14 15:29:08,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c657df1 and model type unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:29:08, skipping insertion in model container [2021-07-14 15:29:08,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:29:08" (2/2) ... [2021-07-14 15:29:08,342 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.bpl [2021-07-14 15:29:08,363 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 15:29:08,363 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 15:29:08,363 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 15:29:08,364 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 15:29:08,410 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 15:29:08,435 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 15:29:08,497 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 15:29:08,497 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 15:29:08,497 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 15:29:08,498 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 15:29:08,498 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 15:29:08,498 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 15:29:08,498 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 15:29:08,499 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 15:29:08,579 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:08,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:08,584 INFO L82 PathProgramCache]: Analyzing trace with hash -836581838, now seen corresponding path program 1 times [2021-07-14 15:29:08,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:08,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231785964] [2021-07-14 15:29:08,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:08,727 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 15:29:08,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:08,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231785964] [2021-07-14 15:29:08,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231785964] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 15:29:08,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 15:29:08,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-14 15:29:08,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573793986] [2021-07-14 15:29:08,733 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 15:29:08,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:08,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 15:29:08,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 15:29:08,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:08,746 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:08,748 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 15:29:08,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:08,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:08,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 15:29:08,760 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:08,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:08,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1085923484, now seen corresponding path program 1 times [2021-07-14 15:29:08,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:08,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870957450] [2021-07-14 15:29:08,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:08,808 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 15:29:08,808 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:08,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870957450] [2021-07-14 15:29:08,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870957450] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:08,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420690935] [2021-07-14 15:29:08,809 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 15:29:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:08,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-14 15:29:08,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:08,973 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 15:29:08,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420690935] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:08,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:08,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-07-14 15:29:08,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148756210] [2021-07-14 15:29:08,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 15:29:08,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:08,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 15:29:08,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 15:29:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:08,987 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:08,987 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 15:29:08,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:08,988 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:09,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:09,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:29:09,256 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:09,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:09,257 INFO L82 PathProgramCache]: Analyzing trace with hash 719182065, now seen corresponding path program 1 times [2021-07-14 15:29:09,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:09,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150992807] [2021-07-14 15:29:09,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:09,293 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 15:29:09,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:09,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150992807] [2021-07-14 15:29:09,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150992807] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:09,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326209797] [2021-07-14 15:29:09,294 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 15:29:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:09,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 15:29:09,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:09,355 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 15:29:09,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326209797] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:09,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:09,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-14 15:29:09,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496417063] [2021-07-14 15:29:09,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 15:29:09,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:09,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 15:29:09,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 15:29:09,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:09,358 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:09,358 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 15:29:09,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:09,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:09,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:09,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:09,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:09,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:09,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:29:09,581 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:09,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:09,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1620028835, now seen corresponding path program 2 times [2021-07-14 15:29:09,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:09,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922448311] [2021-07-14 15:29:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:09,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:09,634 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:09,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922448311] [2021-07-14 15:29:09,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922448311] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:09,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311889108] [2021-07-14 15:29:09,634 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 15:29:09,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 15:29:09,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:29:09,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 15:29:09,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:09,755 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:29:09,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-07-14 15:29:09,759 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 15:29:09,761 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:29:09,761 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 15:29:09,762 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-07-14 15:29:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:09,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311889108] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:09,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:09,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2021-07-14 15:29:09,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443053956] [2021-07-14 15:29:09,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 15:29:09,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:09,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 15:29:09,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-14 15:29:09,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:09,772 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:09,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 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 15:29:09,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:09,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:09,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:09,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:10,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:29:10,046 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:10,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:10,047 INFO L82 PathProgramCache]: Analyzing trace with hash -518492367, now seen corresponding path program 3 times [2021-07-14 15:29:10,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:10,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479659383] [2021-07-14 15:29:10,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:10,105 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:10,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:10,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479659383] [2021-07-14 15:29:10,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479659383] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:10,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160629754] [2021-07-14 15:29:10,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:29:10,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 15:29:10,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:29:10,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-14 15:29:10,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:10,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160629754] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:10,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:10,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-07-14 15:29:10,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129987830] [2021-07-14 15:29:10,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 15:29:10,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:10,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 15:29:10,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-07-14 15:29:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:10,246 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:10,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 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 15:29:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:10,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:10,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:10,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:10,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:10,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:10,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:10,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:29:10,556 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:10,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1129677508, now seen corresponding path program 4 times [2021-07-14 15:29:10,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:10,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384970610] [2021-07-14 15:29:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 15:29:10,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:10,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384970610] [2021-07-14 15:29:10,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384970610] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:10,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502703329] [2021-07-14 15:29:10,610 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 15:29:10,642 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 15:29:10,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:29:10,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 15:29:10,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-14 15:29:10,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502703329] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:10,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:10,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-14 15:29:10,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231434632] [2021-07-14 15:29:10,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 15:29:10,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:10,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 15:29:10,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-07-14 15:29:10,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:10,708 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:10,708 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 15:29:10,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:10,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:10,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:10,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:10,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:10,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:11,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:29:11,008 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:11,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:11,008 INFO L82 PathProgramCache]: Analyzing trace with hash 322539282, now seen corresponding path program 5 times [2021-07-14 15:29:11,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:11,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097288181] [2021-07-14 15:29:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:11,106 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:11,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:11,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097288181] [2021-07-14 15:29:11,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097288181] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:11,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807283902] [2021-07-14 15:29:11,107 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 15:29:11,143 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-14 15:29:11,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:29:11,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 15:29:11,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 15:29:11,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807283902] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:11,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:11,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2021-07-14 15:29:11,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530278584] [2021-07-14 15:29:11,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-14 15:29:11,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:11,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-14 15:29:11,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-07-14 15:29:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:11,269 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:11,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 15:29:11,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:11,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:11,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:11,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:11,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:11,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:11,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:11,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:11,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:11,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:11,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:11,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:11,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:11,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:11,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:29:11,677 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:11,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:11,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1431854851, now seen corresponding path program 6 times [2021-07-14 15:29:11,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:11,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387929221] [2021-07-14 15:29:11,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:11,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:11,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387929221] [2021-07-14 15:29:11,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387929221] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:11,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118234131] [2021-07-14 15:29:11,762 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 15:29:11,794 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-14 15:29:11,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:29:11,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-14 15:29:11,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:12,029 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:29:12,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2021-07-14 15:29:12,480 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 15:29:12,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:29:12,482 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 15:29:12,483 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-07-14 15:29:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:12,489 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118234131] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:12,489 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:12,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 17 [2021-07-14 15:29:12,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657521510] [2021-07-14 15:29:12,490 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 15:29:12,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:12,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 15:29:12,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-07-14 15:29:12,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:12,492 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:12,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 17 states have internal predecessors, (31), 0 states have call successors, (0), 0 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 15:29:12,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:12,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:12,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:12,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:12,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:12,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:12,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:12,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:12,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-07-14 15:29:12,833 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:12,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:12,833 INFO L82 PathProgramCache]: Analyzing trace with hash 977354257, now seen corresponding path program 7 times [2021-07-14 15:29:12,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:12,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913845397] [2021-07-14 15:29:12,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:12,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:12,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913845397] [2021-07-14 15:29:12,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913845397] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:12,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729560799] [2021-07-14 15:29:12,949 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 15:29:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:12,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-14 15:29:12,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:13,053 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:13,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729560799] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:13,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:13,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-07-14 15:29:13,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190811416] [2021-07-14 15:29:13,054 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 15:29:13,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:13,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 15:29:13,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-07-14 15:29:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:13,055 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:13,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 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 15:29:13,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:13,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:13,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:13,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:13,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:13,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:13,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:13,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:13,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:13,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:13,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:13,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:29:13,460 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:13,460 INFO L82 PathProgramCache]: Analyzing trace with hash 256282596, now seen corresponding path program 8 times [2021-07-14 15:29:13,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:13,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379684074] [2021-07-14 15:29:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-07-14 15:29:13,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:13,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379684074] [2021-07-14 15:29:13,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379684074] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:13,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322787338] [2021-07-14 15:29:13,541 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 15:29:13,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 15:29:13,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:29:13,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 15:29:13,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:13,667 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-14 15:29:13,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322787338] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:13,668 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:13,668 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 13 [2021-07-14 15:29:13,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571283278] [2021-07-14 15:29:13,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 15:29:13,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:13,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 15:29:13,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-07-14 15:29:13,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:13,670 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:13,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 13 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 15:29:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:13,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:13,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:13,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:13,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:13,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:13,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:13,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:13,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:14,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-07-14 15:29:14,045 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:14,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:14,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1567875954, now seen corresponding path program 9 times [2021-07-14 15:29:14,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:14,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009074600] [2021-07-14 15:29:14,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:14,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:14,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009074600] [2021-07-14 15:29:14,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009074600] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:14,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140107710] [2021-07-14 15:29:14,131 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 15:29:14,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 15:29:14,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:29:14,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 31 conjunts are in the unsatisfiable core [2021-07-14 15:29:14,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:14,560 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-14 15:29:14,561 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:29:14,561 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 15:29:16,005 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 15:29:16,007 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:29:16,007 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 15:29:16,007 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-07-14 15:29:16,017 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:16,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140107710] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:16,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:16,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14] total 22 [2021-07-14 15:29:16,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594800004] [2021-07-14 15:29:16,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-14 15:29:16,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:16,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-14 15:29:16,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-07-14 15:29:16,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:16,019 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:16,020 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 1.608695652173913) internal successors, (37), 22 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 15:29:16,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:16,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:16,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:16,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:16,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:16,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:16,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:16,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:16,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:16,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:16,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:16,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:16,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-07-14 15:29:16,425 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:16,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:16,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1293396402, now seen corresponding path program 10 times [2021-07-14 15:29:16,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:16,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553473212] [2021-07-14 15:29:16,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:16,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:16,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553473212] [2021-07-14 15:29:16,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553473212] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:16,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862096897] [2021-07-14 15:29:16,574 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 15:29:16,617 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 15:29:16,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:29:16,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 15:29:16,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:16,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862096897] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:16,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:16,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-07-14 15:29:16,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384493544] [2021-07-14 15:29:16,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-14 15:29:16,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:16,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-14 15:29:16,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-07-14 15:29:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:16,694 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:16,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 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 15:29:16,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:16,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:16,694 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:16,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:16,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:16,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:16,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:16,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:16,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:16,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:16,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:16,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:17,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable200 [2021-07-14 15:29:17,149 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:17,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:17,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1463654499, now seen corresponding path program 11 times [2021-07-14 15:29:17,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:17,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989242342] [2021-07-14 15:29:17,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:17,258 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:17,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:17,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989242342] [2021-07-14 15:29:17,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989242342] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:17,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052979552] [2021-07-14 15:29:17,259 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 15:29:17,292 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 15:29:17,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:29:17,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-14 15:29:17,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:17,856 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-07-14 15:29:17,856 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:29:17,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 47 treesize of output 394 [2021-07-14 15:29:18,988 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 236 [2021-07-14 15:29:19,096 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 236 [2021-07-14 15:29:19,256 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 324 DAG size of output: 252 [2021-07-14 15:29:19,506 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 258 [2021-07-14 15:29:19,634 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 206 [2021-07-14 15:29:20,012 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 183 [2021-07-14 15:29:20,519 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 199 [2021-07-14 15:29:21,409 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 287 [2021-07-14 15:29:22,463 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 480 DAG size of output: 370 [2021-07-14 15:29:22,849 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 395 [2021-07-14 15:29:23,352 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 600 DAG size of output: 442 [2021-07-14 15:29:23,493 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 234 [2021-07-14 15:29:25,656 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 270 [2021-07-14 15:29:25,939 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 533 DAG size of output: 379 [2021-07-14 15:29:26,298 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 419 [2021-07-14 15:29:26,766 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 667 DAG size of output: 486 [2021-07-14 15:29:27,847 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1125 DAG size of output: 757 [2021-07-14 15:29:29,060 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1132 DAG size of output: 747 [2021-07-14 15:29:30,278 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1132 DAG size of output: 747 [2021-07-14 15:29:31,628 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1143 DAG size of output: 758 [2021-07-14 15:29:33,201 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 756 DAG size of output: 858 [2021-07-14 15:29:33,690 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 433 DAG size of output: 459 [2021-07-14 15:29:33,875 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 212 [2021-07-14 15:29:34,471 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 183 [2021-07-14 15:29:34,614 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 205 [2021-07-14 15:29:35,332 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 239 [2021-07-14 15:29:35,499 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 271 [2021-07-14 15:29:35,739 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 358 [2021-07-14 15:29:36,524 WARN L205 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 686 [2021-07-14 15:29:37,113 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 454 DAG size of output: 491 [2021-07-14 15:29:37,608 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 302 [2021-07-14 15:29:37,959 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 231 [2021-07-14 15:29:38,144 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 459 DAG size of output: 334 [2021-07-14 15:29:38,474 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 378 [2021-07-14 15:29:39,007 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 236 [2021-07-14 15:29:39,177 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 300 [2021-07-14 15:29:39,475 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 704 DAG size of output: 431 [2021-07-14 15:29:39,844 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 711 DAG size of output: 437 [2021-07-14 15:29:40,476 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 1016 DAG size of output: 596 [2021-07-14 15:29:41,100 WARN L205 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 1016 DAG size of output: 596 [2021-07-14 15:29:41,806 WARN L205 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 1022 DAG size of output: 554 [2021-07-14 15:29:42,110 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 355 DAG size of output: 433 [2021-07-14 15:29:42,560 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 209 [2021-07-14 15:29:42,896 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 239 [2021-07-14 15:29:43,284 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 447 [2021-07-14 15:29:43,542 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 279 [2021-07-14 15:29:43,835 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 303 [2021-07-14 15:29:44,096 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 368 [2021-07-14 15:29:44,500 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 436 [2021-07-14 15:29:44,902 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 436 [2021-07-14 15:29:45,333 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 700 DAG size of output: 439 [2021-07-14 15:29:45,595 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 335 [2021-07-14 15:29:46,250 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 15:29:46,258 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:29:46,258 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 15:29:46,259 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-07-14 15:29:46,264 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:46,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052979552] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:46,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:46,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17] total 27 [2021-07-14 15:29:46,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915626781] [2021-07-14 15:29:46,265 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-14 15:29:46,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:46,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-14 15:29:46,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-14 15:29:46,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:46,266 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:46,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 27 states have internal predecessors, (43), 0 states have call successors, (0), 0 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 15:29:46,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:46,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:46,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:46,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:46,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:46,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:46,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:46,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:46,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:46,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:46,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:46,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:46,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:46,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:46,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 15:29:46,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable201 [2021-07-14 15:29:46,721 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:46,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:46,722 INFO L82 PathProgramCache]: Analyzing trace with hash 2061052451, now seen corresponding path program 12 times [2021-07-14 15:29:46,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:46,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009901411] [2021-07-14 15:29:46,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 55 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:46,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:46,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009901411] [2021-07-14 15:29:46,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009901411] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:46,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002110389] [2021-07-14 15:29:46,897 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 15:29:46,936 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-14 15:29:46,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:29:46,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 15:29:46,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 66 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:47,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002110389] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:47,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:29:47,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-07-14 15:29:47,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219577627] [2021-07-14 15:29:47,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-14 15:29:47,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:29:47,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-14 15:29:47,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-07-14 15:29:47,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:47,035 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:29:47,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 15:29:47,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:47,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:47,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:47,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:47,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:47,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:47,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:47,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:47,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:47,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:47,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:47,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:47,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 15:29:47,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:29:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:29:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:29:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:29:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:29:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:29:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:29:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:29:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 15:29:47,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 15:29:47,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1342,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:29:47,520 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:29:47,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:29:47,520 INFO L82 PathProgramCache]: Analyzing trace with hash -508811758, now seen corresponding path program 13 times [2021-07-14 15:29:47,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:29:47,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323216490] [2021-07-14 15:29:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:29:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:47,645 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:29:47,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:29:47,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323216490] [2021-07-14 15:29:47,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323216490] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:29:47,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783034555] [2021-07-14 15:29:47,645 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 15:29:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:29:47,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-14 15:29:47,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:29:48,431 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-07-14 15:29:48,432 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:29:48,432 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 15:29:49,560 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 276 [2021-07-14 15:29:49,702 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 280 [2021-07-14 15:29:50,614 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 269 [2021-07-14 15:29:50,746 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 273 [2021-07-14 15:29:51,059 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 411 [2021-07-14 15:29:51,434 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 483 DAG size of output: 438 [2021-07-14 15:29:52,323 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 250 [2021-07-14 15:29:52,453 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 252 [2021-07-14 15:29:53,275 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 240 [2021-07-14 15:29:53,394 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 242 [2021-07-14 15:29:53,664 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 374 [2021-07-14 15:29:53,992 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 447 DAG size of output: 402 [2021-07-14 15:29:54,838 WARN L205 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 770 DAG size of output: 685 [2021-07-14 15:29:55,761 WARN L205 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 812 DAG size of output: 726 [2021-07-14 15:29:56,849 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 833 DAG size of output: 734 [2021-07-14 15:29:58,094 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 841 DAG size of output: 738 [2021-07-14 15:29:59,338 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 841 DAG size of output: 738 [2021-07-14 15:30:00,819 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 861 DAG size of output: 758 [2021-07-14 15:30:02,690 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 760 DAG size of output: 812 [2021-07-14 15:30:03,571 WARN L205 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 464 DAG size of output: 563 [2021-07-14 15:30:04,245 WARN L205 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 458 DAG size of output: 646 [2021-07-14 15:30:05,042 WARN L205 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 455 DAG size of output: 545 [2021-07-14 15:30:05,709 WARN L205 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 536 [2021-07-14 15:30:06,057 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 313 [2021-07-14 15:30:06,167 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 254 [2021-07-14 15:30:06,600 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 204 [2021-07-14 15:30:07,164 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 303 [2021-07-14 15:30:08,196 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 314 [2021-07-14 15:30:08,606 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 500 [2021-07-14 15:30:09,133 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 754 DAG size of output: 569 [2021-07-14 15:30:09,345 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 252 [2021-07-14 15:30:10,116 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 212 [2021-07-14 15:30:10,392 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 273 [2021-07-14 15:30:10,635 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 288 [2021-07-14 15:30:11,432 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 195 [2021-07-14 15:30:11,867 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 259 [2021-07-14 15:30:12,404 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 416 [2021-07-14 15:30:13,186 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 186 [2021-07-14 15:30:13,479 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 247 [2021-07-14 15:30:13,674 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 262 [2021-07-14 15:30:13,817 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 250 [2021-07-14 15:30:14,470 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 191 [2021-07-14 15:30:14,639 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 252 [2021-07-14 15:30:14,840 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 253 [2021-07-14 15:30:15,091 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 268 [2021-07-14 15:30:15,616 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 397 [2021-07-14 15:30:16,657 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 975 DAG size of output: 585 [2021-07-14 15:30:18,427 WARN L205 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1575 DAG size of output: 971 [2021-07-14 15:30:19,416 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 521 DAG size of output: 336 [2021-07-14 15:30:19,830 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 355 [2021-07-14 15:30:20,088 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 339 [2021-07-14 15:30:21,229 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 308 [2021-07-14 15:30:21,371 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 322 [2021-07-14 15:30:21,959 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 379 [2021-07-14 15:30:22,255 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 401 [2021-07-14 15:30:22,617 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 639 DAG size of output: 412 [2021-07-14 15:30:23,505 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 290 [2021-07-14 15:30:23,684 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 324 [2021-07-14 15:30:23,901 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 421 DAG size of output: 334 [2021-07-14 15:30:24,558 WARN L205 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 866 DAG size of output: 570 [2021-07-14 15:30:25,922 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 282 [2021-07-14 15:30:26,185 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 522 DAG size of output: 386 [2021-07-14 15:30:26,598 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 444 [2021-07-14 15:30:27,652 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1125 DAG size of output: 748 [2021-07-14 15:30:29,113 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1273 DAG size of output: 863 [2021-07-14 15:30:29,389 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 273 [2021-07-14 15:30:30,348 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 281 [2021-07-14 15:30:30,521 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 466 DAG size of output: 313 [2021-07-14 15:30:31,198 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 281 [2021-07-14 15:30:31,528 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 428 [2021-07-14 15:30:32,706 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 324 [2021-07-14 15:30:32,946 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 374 [2021-07-14 15:30:33,547 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 756 DAG size of output: 529 [2021-07-14 15:30:35,788 WARN L205 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 1662 DAG size of output: 1121 [2021-07-14 15:30:36,086 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 336 [2021-07-14 15:30:36,293 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 278 [2021-07-14 15:30:37,048 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2021-07-14 15:30:37,206 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 220 [2021-07-14 15:30:37,982 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 191 [2021-07-14 15:30:38,116 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 215 [2021-07-14 15:30:38,285 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 236 [2021-07-14 15:30:38,672 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 345 [2021-07-14 15:30:38,814 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 242 [2021-07-14 15:30:39,446 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 198 [2021-07-14 15:30:40,119 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 207 [2021-07-14 15:30:40,377 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 303 [2021-07-14 15:30:40,689 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 323 [2021-07-14 15:30:41,285 WARN L205 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 465 [2021-07-14 15:30:41,415 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 307 [2021-07-14 15:30:42,342 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2021-07-14 15:30:43,059 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 285 [2021-07-14 15:30:44,131 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 255 [2021-07-14 15:30:44,328 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 279 [2021-07-14 15:30:44,798 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 424 [2021-07-14 15:30:45,436 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 642 DAG size of output: 511 [2021-07-14 15:30:46,865 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1161 DAG size of output: 818 [2021-07-14 15:30:50,791 WARN L205 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 2529 DAG size of output: 1673 [2021-07-14 15:30:55,497 WARN L205 SmtUtils]: Spent 4.69 s on a formula simplification. DAG size of input: 2885 DAG size of output: 1923 [2021-07-14 15:31:02,719 WARN L205 SmtUtils]: Spent 7.21 s on a formula simplification. DAG size of input: 4260 DAG size of output: 2683 [2021-07-14 15:31:11,066 WARN L205 SmtUtils]: Spent 8.33 s on a formula simplification. DAG size of input: 4417 DAG size of output: 2844 [2021-07-14 15:31:20,521 WARN L205 SmtUtils]: Spent 9.44 s on a formula simplification. DAG size of input: 4663 DAG size of output: 2936 [2021-07-14 15:31:21,154 WARN L205 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 626 [2021-07-14 15:31:21,975 WARN L205 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 525 [2021-07-14 15:31:22,646 WARN L205 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 490 [2021-07-14 15:31:24,318 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 472 DAG size of output: 464 [2021-07-14 15:31:24,522 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 470 [2021-07-14 15:31:24,879 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 813 DAG size of output: 655 [2021-07-14 15:31:25,125 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 221 [2021-07-14 15:31:26,236 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 181 [2021-07-14 15:31:26,792 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 179 [2021-07-14 15:31:27,034 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 241 [2021-07-14 15:31:27,332 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 244 [2021-07-14 15:31:27,763 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 287 [2021-07-14 15:31:28,715 WARN L205 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 681 [2021-07-14 15:31:29,722 WARN L205 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 584 [2021-07-14 15:31:30,615 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 499 [2021-07-14 15:31:30,798 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 324 [2021-07-14 15:31:30,952 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 322 [2021-07-14 15:31:31,772 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 201 [2021-07-14 15:31:32,535 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 286 [2021-07-14 15:31:33,484 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 214 [2021-07-14 15:31:33,669 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 256 [2021-07-14 15:31:34,449 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 347 [2021-07-14 15:31:35,086 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 524 [2021-07-14 15:31:36,520 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 266 [2021-07-14 15:31:37,231 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 210 [2021-07-14 15:31:38,417 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 188 [2021-07-14 15:31:38,536 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 191 [2021-07-14 15:31:38,734 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 377 DAG size of output: 262 [2021-07-14 15:31:39,067 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 470 DAG size of output: 355 [2021-07-14 15:31:39,504 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 524 DAG size of output: 397 [2021-07-14 15:31:40,268 WARN L205 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 695 DAG size of output: 559 [2021-07-14 15:31:41,746 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 977 DAG size of output: 792 [2021-07-14 15:31:43,280 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1064 DAG size of output: 842 [2021-07-14 15:31:45,150 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1243 DAG size of output: 920 [2021-07-14 15:31:47,417 WARN L205 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 1442 DAG size of output: 1089 [2021-07-14 15:31:48,003 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 457 [2021-07-14 15:31:48,294 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 383 [2021-07-14 15:31:48,671 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 429 [2021-07-14 15:31:49,445 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 239 [2021-07-14 15:31:49,586 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 249 [2021-07-14 15:31:50,473 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 344 [2021-07-14 15:31:50,872 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 395 [2021-07-14 15:31:52,137 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 202 [2021-07-14 15:31:52,377 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 332 [2021-07-14 15:31:52,765 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 381 [2021-07-14 15:31:53,134 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 401 [2021-07-14 15:31:53,877 WARN L205 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 692 DAG size of output: 593 [2021-07-14 15:31:54,282 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 444 [2021-07-14 15:31:55,082 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 210 [2021-07-14 15:31:55,215 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 233 [2021-07-14 15:31:55,396 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 245 [2021-07-14 15:31:56,071 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 345 [2021-07-14 15:31:56,494 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 398 [2021-07-14 15:31:57,257 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 217 [2021-07-14 15:31:57,904 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 245 [2021-07-14 15:31:58,194 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 344 [2021-07-14 15:31:58,606 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 397 [2021-07-14 15:31:59,387 WARN L205 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 601 [2021-07-14 15:32:00,770 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1077 DAG size of output: 809 [2021-07-14 15:32:02,428 WARN L205 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1165 DAG size of output: 847 [2021-07-14 15:32:06,896 WARN L205 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 2290 DAG size of output: 1526 [2021-07-14 15:32:12,925 WARN L205 SmtUtils]: Spent 6.02 s on a formula simplification. DAG size of input: 3340 DAG size of output: 2063 [2021-07-14 15:32:20,016 WARN L205 SmtUtils]: Spent 7.08 s on a formula simplification. DAG size of input: 3491 DAG size of output: 2236 [2021-07-14 15:32:28,204 WARN L205 SmtUtils]: Spent 8.17 s on a formula simplification. DAG size of input: 3713 DAG size of output: 2317 [2021-07-14 15:32:46,518 WARN L205 SmtUtils]: Spent 18.29 s on a formula simplification. DAG size of input: 7370 DAG size of output: 4532 [2021-07-14 15:33:08,733 WARN L205 SmtUtils]: Spent 22.18 s on a formula simplification. DAG size of input: 7654 DAG size of output: 4652 [2021-07-14 15:33:30,881 WARN L205 SmtUtils]: Spent 22.11 s on a formula simplification. DAG size of input: 7654 DAG size of output: 4652 [2021-07-14 15:33:55,979 WARN L205 SmtUtils]: Spent 25.08 s on a formula simplification. DAG size of input: 7669 DAG size of output: 4667 [2021-07-14 15:33:56,763 WARN L205 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 4661 [2021-07-14 15:34:24,406 WARN L205 SmtUtils]: Spent 27.62 s on a formula simplification. DAG size of input: 4663 DAG size of output: 6220 [2021-07-14 15:34:34,415 WARN L205 SmtUtils]: Spent 9.96 s on a formula simplification. DAG size of input: 4573 DAG size of output: 4534 [2021-07-14 15:34:57,331 WARN L205 SmtUtils]: Spent 22.89 s on a formula simplification. DAG size of input: 4531 DAG size of output: 4865 [2021-07-14 15:35:12,292 WARN L205 SmtUtils]: Spent 14.93 s on a formula simplification. DAG size of input: 3153 DAG size of output: 3275 [2021-07-14 15:35:22,336 WARN L205 SmtUtils]: Spent 10.02 s on a formula simplification. DAG size of input: 3100 DAG size of output: 3091 [2021-07-14 15:35:40,089 WARN L205 SmtUtils]: Spent 17.74 s on a formula simplification. DAG size of input: 2740 DAG size of output: 4110 [2021-07-14 15:35:41,015 WARN L205 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 2692 DAG size of output: 2692 [2021-07-14 15:35:41,312 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 256 [2021-07-14 15:35:41,794 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 1341 [2021-07-14 15:35:42,090 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 1234 [2021-07-14 15:35:42,239 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 1079 [2021-07-14 15:35:42,378 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 668 DAG size of output: 668 [2021-07-14 15:35:42,513 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 635 DAG size of output: 635 [2021-07-14 15:35:43,956 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 685 [2021-07-14 15:35:44,524 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 596 DAG size of output: 558 [2021-07-14 15:35:45,611 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 189 [2021-07-14 15:35:45,818 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 318 [2021-07-14 15:35:46,171 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 687 DAG size of output: 429 [2021-07-14 15:35:46,639 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 846 DAG size of output: 502 [2021-07-14 15:35:47,028 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 450 [2021-07-14 15:35:47,491 WARN L205 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 1736 DAG size of output: 1736 [2021-07-14 15:35:47,710 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 1598 [2021-07-14 15:35:48,038 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 1498 [2021-07-14 15:35:48,303 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 1220 DAG size of output: 1220 [2021-07-14 15:35:48,795 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 1076 DAG size of output: 852 [2021-07-14 15:35:49,335 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 705 [2021-07-14 15:35:50,296 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 197 [2021-07-14 15:35:51,271 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 487 DAG size of output: 313 [2021-07-14 15:35:51,556 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 375 [2021-07-14 15:35:53,214 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 240 [2021-07-14 15:35:53,434 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 357 [2021-07-14 15:35:54,854 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 227 [2021-07-14 15:35:55,683 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 231 [2021-07-14 15:35:55,937 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 556 DAG size of output: 391 [2021-07-14 15:35:56,459 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 871 DAG size of output: 621 [2021-07-14 15:35:57,429 WARN L205 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 1446 DAG size of output: 922 [2021-07-14 15:35:58,600 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 1728 DAG size of output: 970 [2021-07-14 15:35:59,729 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 1758 DAG size of output: 839 [2021-07-14 15:35:59,988 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 283 [2021-07-14 15:36:01,671 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1922 DAG size of output: 903 [2021-07-14 15:36:03,612 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 2598 DAG size of output: 1165 [2021-07-14 15:36:09,499 WARN L205 SmtUtils]: Spent 5.87 s on a formula simplification. DAG size of input: 4518 DAG size of output: 2219 [2021-07-14 15:36:10,240 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 525 [2021-07-14 15:36:10,599 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 477 DAG size of output: 477 [2021-07-14 15:36:11,519 WARN L205 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 474 DAG size of output: 729 [2021-07-14 15:36:11,796 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 338 [2021-07-14 15:36:12,516 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 273 [2021-07-14 15:36:12,782 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 279 [2021-07-14 15:36:13,122 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 325 [2021-07-14 15:36:20,024 WARN L205 SmtUtils]: Spent 6.89 s on a formula simplification. DAG size of input: 4961 DAG size of output: 2195 [2021-07-14 15:36:28,399 WARN L205 SmtUtils]: Spent 8.36 s on a formula simplification. DAG size of input: 5328 DAG size of output: 2407 [2021-07-14 15:36:39,073 WARN L205 SmtUtils]: Spent 10.65 s on a formula simplification. DAG size of input: 6680 DAG size of output: 2674 [2021-07-14 15:36:50,909 WARN L205 SmtUtils]: Spent 11.81 s on a formula simplification. DAG size of input: 6693 DAG size of output: 2686 [2021-07-14 15:37:05,133 WARN L205 SmtUtils]: Spent 14.20 s on a formula simplification. DAG size of input: 8215 DAG size of output: 3079 [2021-07-14 15:37:19,398 WARN L205 SmtUtils]: Spent 14.24 s on a formula simplification. DAG size of input: 8215 DAG size of output: 3079 [2021-07-14 15:37:36,373 WARN L205 SmtUtils]: Spent 16.92 s on a formula simplification. DAG size of input: 8225 DAG size of output: 3069 [2021-07-14 15:37:49,844 WARN L205 SmtUtils]: Spent 13.45 s on a formula simplification. DAG size of input: 3054 DAG size of output: 3247 [2021-07-14 15:37:55,937 WARN L205 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 2778 DAG size of output: 2144 [2021-07-14 15:38:00,783 WARN L205 SmtUtils]: Spent 4.83 s on a formula simplification. DAG size of input: 1921 DAG size of output: 2107 [2021-07-14 15:38:05,187 WARN L205 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 1844 DAG size of output: 1869 [2021-07-14 15:38:05,385 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 1774 [2021-07-14 15:38:05,574 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 1623 [2021-07-14 15:38:05,764 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 271 [2021-07-14 15:38:06,347 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 234 [2021-07-14 15:38:06,830 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 302 [2021-07-14 15:38:06,997 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 1442 [2021-07-14 15:38:07,306 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 262 [2021-07-14 15:38:07,481 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 233 [2021-07-14 15:38:08,339 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 1292 DAG size of output: 1292 [2021-07-14 15:38:08,558 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 265 [2021-07-14 15:38:08,829 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 204 [2021-07-14 15:38:09,028 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 214 [2021-07-14 15:38:10,083 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1104 DAG size of output: 1104 [2021-07-14 15:38:10,815 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 602 DAG size of output: 490 [2021-07-14 15:38:11,845 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 509 [2021-07-14 15:38:12,433 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 338 [2021-07-14 15:38:12,726 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 500 DAG size of output: 441 [2021-07-14 15:38:13,123 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 535 [2021-07-14 15:38:13,231 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 624 DAG size of output: 624 [2021-07-14 15:38:13,823 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 353 [2021-07-14 15:38:14,523 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 204 [2021-07-14 15:38:14,662 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 216 [2021-07-14 15:38:15,316 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 291 [2021-07-14 15:38:16,077 WARN L205 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 1185 DAG size of output: 751 [2021-07-14 15:38:17,170 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1369 DAG size of output: 911 [2021-07-14 15:38:18,421 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1497 DAG size of output: 994 [2021-07-14 15:38:19,889 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1806 DAG size of output: 1194 [2021-07-14 15:38:20,079 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 248 [2021-07-14 15:38:20,276 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 207 [2021-07-14 15:38:20,586 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 232 [2021-07-14 15:38:21,178 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 169 [2021-07-14 15:38:21,319 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 207 [2021-07-14 15:38:21,478 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 223 [2021-07-14 15:38:23,147 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 2038 DAG size of output: 1341 [2021-07-14 15:38:25,248 WARN L205 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 2187 DAG size of output: 1400 [2021-07-14 15:38:28,365 WARN L205 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 2655 DAG size of output: 1823 [2021-07-14 15:38:32,363 WARN L205 SmtUtils]: Spent 3.98 s on a formula simplification. DAG size of input: 2932 DAG size of output: 2078 [2021-07-14 15:38:37,481 WARN L205 SmtUtils]: Spent 5.10 s on a formula simplification. DAG size of input: 3415 DAG size of output: 2208 [2021-07-14 15:38:43,230 WARN L205 SmtUtils]: Spent 5.73 s on a formula simplification. DAG size of input: 3441 DAG size of output: 2213 [2021-07-14 15:38:49,072 WARN L205 SmtUtils]: Spent 5.82 s on a formula simplification. DAG size of input: 3441 DAG size of output: 2213 [2021-07-14 15:38:55,447 WARN L205 SmtUtils]: Spent 6.36 s on a formula simplification. DAG size of input: 3444 DAG size of output: 2217 [2021-07-14 15:38:55,700 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 2213 [2021-07-14 15:38:56,191 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 2213 DAG size of output: 2213 [2021-07-14 15:38:56,430 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 2208 [2021-07-14 15:39:01,159 WARN L205 SmtUtils]: Spent 4.72 s on a formula simplification. DAG size of input: 2078 DAG size of output: 1870 [2021-07-14 15:39:01,441 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 1107 DAG size of output: 1107 [2021-07-14 15:39:01,550 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 180 [2021-07-14 15:39:03,390 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1010 DAG size of output: 875 [2021-07-14 15:39:03,924 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 416 [2021-07-14 15:39:04,107 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 188 [2021-07-14 15:39:04,583 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2021-07-14 15:39:05,651 WARN L205 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 529 [2021-07-14 15:39:05,825 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 289 [2021-07-14 15:39:06,425 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 258 [2021-07-14 15:39:06,939 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 198 [2021-07-14 15:39:07,129 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 286 [2021-07-14 15:39:07,387 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 593 DAG size of output: 383 [2021-07-14 15:39:07,559 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 947 DAG size of output: 945 [2021-07-14 15:39:08,910 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 789 DAG size of output: 735 [2021-07-14 15:39:09,469 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 547 DAG size of output: 547 [2021-07-14 15:39:09,962 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 537 DAG size of output: 464 [2021-07-14 15:39:10,652 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 242 [2021-07-14 15:39:10,802 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 403 DAG size of output: 252 [2021-07-14 15:39:11,117 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 239 [2021-07-14 15:39:11,787 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 315 [2021-07-14 15:39:11,922 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 196 [2021-07-14 15:39:12,343 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 582 DAG size of output: 346 [2021-07-14 15:39:12,654 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 589 DAG size of output: 350 [2021-07-14 15:39:13,210 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 574 [2021-07-14 15:39:13,509 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 292 [2021-07-14 15:39:13,654 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 195 [2021-07-14 15:39:14,401 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 213 [2021-07-14 15:39:14,541 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 199 [2021-07-14 15:39:15,087 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 180 [2021-07-14 15:39:15,882 WARN L205 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 1288 DAG size of output: 687 [2021-07-14 15:39:16,820 WARN L205 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 1291 DAG size of output: 686 [2021-07-14 15:39:17,770 WARN L205 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 1291 DAG size of output: 686 [2021-07-14 15:39:18,764 WARN L205 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 1297 DAG size of output: 692 [2021-07-14 15:39:19,092 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 491 [2021-07-14 15:39:19,659 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 304 [2021-07-14 15:39:19,974 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 355 [2021-07-14 15:39:20,349 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 360 [2021-07-14 15:39:20,725 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 360 [2021-07-14 15:39:21,118 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 363 [2021-07-14 15:39:21,415 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 365 [2021-07-14 15:39:21,546 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 248 [2021-07-14 15:39:22,422 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 15:39:22,424 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:39:22,424 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 15:39:22,424 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:3 [2021-07-14 15:39:22,430 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:39:22,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783034555] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:39:22,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:39:22,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20] total 32 [2021-07-14 15:39:22,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700435961] [2021-07-14 15:39:22,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 15:39:22,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:39:22,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 15:39:22,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=975, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 15:39:22,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:39:22,431 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:39:22,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:39:22,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:39:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:39:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 15:39:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 15:39:22,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:39:22,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 15:39:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 15:39:22,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 15:39:22,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1343 [2021-07-14 15:39:22,987 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:39:22,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:39:22,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1770898350, now seen corresponding path program 14 times [2021-07-14 15:39:22,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:39:22,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487710784] [2021-07-14 15:39:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:39:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:39:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 78 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:39:23,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:39:23,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487710784] [2021-07-14 15:39:23,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487710784] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:39:23,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031143129] [2021-07-14 15:39:23,211 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 15:39:23,246 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 15:39:23,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:39:23,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 22 conjunts are in the unsatisfiable core [2021-07-14 15:39:23,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:39:23,344 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 91 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:39:23,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031143129] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:39:23,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 15:39:23,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-07-14 15:39:23,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341084709] [2021-07-14 15:39:23,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 15:39:23,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 15:39:23,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 15:39:23,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2021-07-14 15:39:23,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:39:23,346 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 15:39:23,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 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 15:39:23,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:39:23,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:39:23,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:39:23,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-14 15:39:23,347 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 15:39:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 15:39:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:39:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 15:39:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 15:39:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:39:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 15:39:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:39:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:39:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 15:39:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 15:39:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:39:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 15:39:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 15:39:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 15:39:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 15:39:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-14 15:39:23,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11576 [2021-07-14 15:39:23,937 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 15:39:23,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 15:39:23,937 INFO L82 PathProgramCache]: Analyzing trace with hash 959797699, now seen corresponding path program 15 times [2021-07-14 15:39:23,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 15:39:23,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535026587] [2021-07-14 15:39:23,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 15:39:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 15:39:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 15:39:24,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 15:39:24,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535026587] [2021-07-14 15:39:24,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535026587] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 15:39:24,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675156973] [2021-07-14 15:39:24,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 15:39:24,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-07-14 15:39:24,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 15:39:24,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 49 conjunts are in the unsatisfiable core [2021-07-14 15:39:24,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 15:39:25,310 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-07-14 15:39:25,311 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 15:39:25,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 27 new quantified variables, introduced 91 case distinctions, treesize of input 63 treesize of output 774 [2021-07-14 15:39:26,461 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 301 [2021-07-14 15:39:26,668 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 334 [2021-07-14 15:39:26,908 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 363 [2021-07-14 15:39:28,283 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 673 DAG size of output: 609 [2021-07-14 15:39:28,583 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 701 DAG size of output: 636 [2021-07-14 15:39:29,213 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 912 [2021-07-14 15:39:30,007 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 1137 DAG size of output: 937 [2021-07-14 15:39:30,973 WARN L205 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 1169 DAG size of output: 969 [2021-07-14 15:39:32,188 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1200 DAG size of output: 1000 [2021-07-14 15:39:33,661 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1232 DAG size of output: 1032 [2021-07-14 15:39:34,956 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 235 [2021-07-14 15:39:35,105 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 256 [2021-07-14 15:39:35,285 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 289 [2021-07-14 15:39:35,506 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 321 [2021-07-14 15:39:35,752 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 354 [2021-07-14 15:39:37,655 WARN L205 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 1480 DAG size of output: 1192 [2021-07-14 15:39:38,875 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 328 [2021-07-14 15:39:39,090 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 657 DAG size of output: 593 [2021-07-14 15:39:40,218 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 324 [2021-07-14 15:39:40,437 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 589 [2021-07-14 15:39:40,960 WARN L205 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1122 [2021-07-14 15:39:41,657 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 1279 DAG size of output: 1150 [2021-07-14 15:39:42,531 WARN L205 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 1310 DAG size of output: 1181 [2021-07-14 15:39:43,606 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1340 DAG size of output: 1211 [2021-07-14 15:39:44,982 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1369 DAG size of output: 1239 [2021-07-14 15:39:46,486 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 460 DAG size of output: 316 [2021-07-14 15:39:46,686 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 348 [2021-07-14 15:39:46,944 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 523 DAG size of output: 375 [2021-07-14 15:39:47,257 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 406 [2021-07-14 15:39:47,602 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 584 DAG size of output: 436 [2021-07-14 15:39:49,666 WARN L205 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 1800 DAG size of output: 1526 [2021-07-14 15:39:52,006 WARN L205 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 1831 DAG size of output: 1557 [2021-07-14 15:39:56,606 WARN L205 SmtUtils]: Spent 4.59 s on a formula simplification. DAG size of input: 3112 DAG size of output: 2563 [2021-07-14 15:40:01,832 WARN L205 SmtUtils]: Spent 5.21 s on a formula simplification. DAG size of input: 3143 DAG size of output: 2594 [2021-07-14 15:40:07,658 WARN L205 SmtUtils]: Spent 5.81 s on a formula simplification. DAG size of input: 3171 DAG size of output: 2622 [2021-07-14 15:40:14,131 WARN L205 SmtUtils]: Spent 6.46 s on a formula simplification. DAG size of input: 3200 DAG size of output: 2649 [2021-07-14 15:40:21,442 WARN L205 SmtUtils]: Spent 7.29 s on a formula simplification. DAG size of input: 3246 DAG size of output: 2693 [2021-07-14 15:40:22,669 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 200 [2021-07-14 15:40:22,787 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 234 [2021-07-14 15:40:22,934 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 262 [2021-07-14 15:40:23,118 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 295 [2021-07-14 15:40:23,319 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 327 [2021-07-14 15:40:23,986 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 337 [2021-07-14 15:40:24,774 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 674 DAG size of output: 610 [2021-07-14 15:40:25,875 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 302 [2021-07-14 15:40:26,080 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 335 [2021-07-14 15:40:26,589 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 881 [2021-07-14 15:40:27,246 WARN L205 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 1104 DAG size of output: 911 [2021-07-14 15:40:28,058 WARN L205 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 1136 DAG size of output: 943 [2021-07-14 15:40:29,059 WARN L205 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 1168 DAG size of output: 975 [2021-07-14 15:40:30,305 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1006 [2021-07-14 15:40:31,974 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1441 DAG size of output: 1168 [2021-07-14 15:40:33,963 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 1474 DAG size of output: 1201 [2021-07-14 15:40:35,083 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 302 [2021-07-14 15:40:35,280 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 335 [2021-07-14 15:40:35,556 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 364 [2021-07-14 15:40:36,797 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 304 [2021-07-14 15:40:37,023 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 339 [2021-07-14 15:40:37,310 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 499 DAG size of output: 370 [2021-07-14 15:40:37,909 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 890 DAG size of output: 633 [2021-07-14 15:40:38,628 WARN L205 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 923 DAG size of output: 659 [2021-07-14 15:40:39,490 WARN L205 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 957 DAG size of output: 693 [2021-07-14 15:40:40,488 WARN L205 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 990 DAG size of output: 726 [2021-07-14 15:40:41,648 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 1024 DAG size of output: 760 [2021-07-14 15:40:43,801 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1051 DAG size of output: 779 [2021-07-14 15:40:47,349 WARN L205 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 2305 DAG size of output: 1755 [2021-07-14 15:40:51,453 WARN L205 SmtUtils]: Spent 4.09 s on a formula simplification. DAG size of input: 2338 DAG size of output: 1788 [2021-07-14 15:40:55,785 WARN L205 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 2368 DAG size of output: 1818 [2021-07-14 15:41:00,642 WARN L205 SmtUtils]: Spent 4.85 s on a formula simplification. DAG size of input: 2399 DAG size of output: 1847 [2021-07-14 15:41:14,148 WARN L205 SmtUtils]: Spent 13.49 s on a formula simplification. DAG size of input: 5327 DAG size of output: 4237 [2021-07-14 15:41:29,112 WARN L205 SmtUtils]: Spent 14.94 s on a formula simplification. DAG size of input: 5355 DAG size of output: 4263 [2021-07-14 15:41:44,195 WARN L205 SmtUtils]: Spent 15.06 s on a formula simplification. DAG size of input: 5355 DAG size of output: 4263 [2021-07-14 15:42:01,433 WARN L205 SmtUtils]: Spent 17.22 s on a formula simplification. DAG size of input: 5378 DAG size of output: 4286 [2021-07-14 15:42:30,402 WARN L205 SmtUtils]: Spent 28.93 s on a formula simplification. DAG size of input: 4288 DAG size of output: 5230 [2021-07-14 15:43:04,134 WARN L205 SmtUtils]: Spent 33.70 s on a formula simplification. DAG size of input: 4282 DAG size of output: 6377 [2021-07-14 15:43:04,644 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 4274 [2021-07-14 15:43:06,059 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 309 [2021-07-14 15:43:06,314 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 334 [2021-07-14 15:43:06,963 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 231 [2021-07-14 15:43:07,092 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 256 [2021-07-14 15:43:07,681 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 221 [2021-07-14 15:43:07,806 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 244 [2021-07-14 15:43:08,079 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 352 [2021-07-14 15:43:08,406 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 375 [2021-07-14 15:43:09,100 WARN L205 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 657 DAG size of output: 545 [2021-07-14 15:43:09,677 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 220 [2021-07-14 15:43:09,802 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 240 [2021-07-14 15:43:10,528 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 250 [2021-07-14 15:43:10,787 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 346 [2021-07-14 15:43:12,076 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 299 [2021-07-14 15:43:12,618 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 618 DAG size of output: 516 [2021-07-14 15:43:13,252 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 643 DAG size of output: 538 [2021-07-14 15:43:14,565 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1114 DAG size of output: 848 [2021-07-14 15:43:15,184 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 248 [2021-07-14 15:43:15,917 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 340 [2021-07-14 15:43:16,977 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 275 [2021-07-14 15:43:17,460 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 481 [2021-07-14 15:43:18,032 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 550 DAG size of output: 501 [2021-07-14 15:43:18,505 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 222 [2021-07-14 15:43:18,610 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 233 [2021-07-14 15:43:18,736 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 256 [2021-07-14 15:43:19,282 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 245 [2021-07-14 15:43:19,548 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 349 [2021-07-14 15:43:19,851 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 385 DAG size of output: 370 [2021-07-14 15:43:20,977 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 287 [2021-07-14 15:43:21,185 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 307 [2021-07-14 15:43:21,789 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 514 [2021-07-14 15:43:22,996 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 926 DAG size of output: 806 [2021-07-14 15:43:25,830 WARN L205 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 1850 DAG size of output: 1449 [2021-07-14 15:43:29,013 WARN L205 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 1896 DAG size of output: 1472 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown