/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 13:53:24,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 13:53:24,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 13:53:24,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 13:53:24,520 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-10 13:53:24,544 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 13:53:24,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 13:53:24,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 13:53:24,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 13:53:24,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 13:53:24,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 13:53:24,546 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 13:53:24,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 13:53:24,547 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 13:53:24,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 13:53:24,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 13:53:24,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 13:53:24,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 13:53:24,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 13:53:24,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 13:53:24,548 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 13:53:24,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 13:53:24,548 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 13:53:24,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 13:53:24,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 13:53:24,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 13:53:24,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 13:53:24,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 13:53:24,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 13:53:24,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 13:53:24,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 13:53:24,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 13:53:24,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 13:53:24,549 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-10 13:53:24,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 13:53:24,549 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 13:53:24,550 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 13:53:24,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 13:53:24,550 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-10 13:53:24,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-10 13:53:24,550 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 13:53:24,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 13:53:24,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 13:53:24,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 13:53:24,836 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 13:53:24,837 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 13:53:24,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl [2021-07-10 13:53:24,839 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl' [2021-07-10 13:53:24,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 13:53:24,861 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 13:53:24,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 13:53:24,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 13:53:24,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 13:53:24,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (1/1) ... [2021-07-10 13:53:24,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (1/1) ... [2021-07-10 13:53:24,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 13:53:24,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 13:53:24,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 13:53:24,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 13:53:24,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (1/1) ... [2021-07-10 13:53:24,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (1/1) ... [2021-07-10 13:53:24,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (1/1) ... [2021-07-10 13:53:24,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (1/1) ... [2021-07-10 13:53:24,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (1/1) ... [2021-07-10 13:53:24,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (1/1) ... [2021-07-10 13:53:24,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (1/1) ... [2021-07-10 13:53:24,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 13:53:24,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 13:53:24,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 13:53:24,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 13:53:24,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (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 [2021-07-10 13:53:24,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 13:53:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 13:53:24,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 13:53:24,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 13:53:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 13:53:24,955 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 13:53:24,955 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 13:53:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 13:53:24,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 13:53:24,956 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 13:53:25,135 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 13:53:25,135 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-07-10 13:53:25,136 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-07-10 13:53:25,136 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-07-10 13:53:25,137 INFO L202 PluginConnector]: Adding new model unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 01:53:25 BoogieIcfgContainer [2021-07-10 13:53:25,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 13:53:25,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 13:53:25,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 13:53:25,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 13:53:25,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 01:53:24" (1/2) ... [2021-07-10 13:53:25,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa010c6 and model type unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 01:53:25, skipping insertion in model container [2021-07-10 13:53:25,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 01:53:25" (2/2) ... [2021-07-10 13:53:25,143 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.bpl [2021-07-10 13:53:25,146 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 13:53:25,147 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 13:53:25,147 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 13:53:25,147 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 13:53:25,166 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-10 13:53:25,182 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 [2021-07-10 13:53:25,269 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 13:53:25,269 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 13:53:25,270 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 13:53:25,270 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 13:53:25,270 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 13:53:25,270 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 13:53:25,270 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 13:53:25,270 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 13:53:25,302 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:25,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:25,306 INFO L82 PathProgramCache]: Analyzing trace with hash 333240611, now seen corresponding path program 1 times [2021-07-10 13:53:25,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:25,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295296422] [2021-07-10 13:53:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:25,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:25,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:25,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295296422] [2021-07-10 13:53:25,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295296422] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 13:53:25,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 13:53:25,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-10 13:53:25,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060208128] [2021-07-10 13:53:25,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 13:53:25,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:25,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 13:53:25,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 13:53:25,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:25,412 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:25,413 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) [2021-07-10 13:53:25,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:25,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 13:53:25,424 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:25,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:25,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1034217597, now seen corresponding path program 1 times [2021-07-10 13:53:25,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:25,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137128404] [2021-07-10 13:53:25,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:25,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:25,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137128404] [2021-07-10 13:53:25,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137128404] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:25,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215798285] [2021-07-10 13:53:25,454 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 [2021-07-10 13:53:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:25,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-10 13:53:25,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:25,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215798285] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:25,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:25,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-07-10 13:53:25,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555529545] [2021-07-10 13:53:25,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-10 13:53:25,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:25,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-10 13:53:25,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-10 13:53:25,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:25,550 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:25,550 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:25,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:25,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:25,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:25,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 13:53:25,791 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:25,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1995246966, now seen corresponding path program 1 times [2021-07-10 13:53:25,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:25,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722410649] [2021-07-10 13:53:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:25,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 13:53:25,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:25,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722410649] [2021-07-10 13:53:25,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722410649] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:25,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874914674] [2021-07-10 13:53:25,823 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) [2021-07-10 13:53:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:25,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-10 13:53:25,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 13:53:25,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 13:53:25,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874914674] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:25,892 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:25,892 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-10 13:53:25,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376366605] [2021-07-10 13:53:25,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-10 13:53:25,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:25,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-10 13:53:25,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-10 13:53:25,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:25,894 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:25,894 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) [2021-07-10 13:53:25,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:25,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:25,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:25,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:25,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:25,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:26,121 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 13:53:26,121 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:26,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:26,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1862592278, now seen corresponding path program 2 times [2021-07-10 13:53:26,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:26,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116955138] [2021-07-10 13:53:26,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 13:53:26,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:26,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116955138] [2021-07-10 13:53:26,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116955138] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:26,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147393348] [2021-07-10 13:53:26,195 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 [2021-07-10 13:53:26,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 13:53:26,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:26,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-10 13:53:26,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:26,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 13:53:26,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147393348] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:26,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:26,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-07-10 13:53:26,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808189588] [2021-07-10 13:53:26,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-10 13:53:26,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:26,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-10 13:53:26,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-07-10 13:53:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:26,357 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:26,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:26,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:26,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:26,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:26,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:26,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 13:53:26,597 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:26,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:26,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2045264246, now seen corresponding path program 3 times [2021-07-10 13:53:26,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:26,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94763194] [2021-07-10 13:53:26,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 13:53:26,678 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:26,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94763194] [2021-07-10 13:53:26,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94763194] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:26,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920464068] [2021-07-10 13:53:26,678 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 [2021-07-10 13:53:26,719 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-10 13:53:26,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:26,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-10 13:53:26,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:26,764 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 13:53:26,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920464068] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:26,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:26,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-07-10 13:53:26,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072026349] [2021-07-10 13:53:26,765 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-10 13:53:26,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:26,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-10 13:53:26,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-07-10 13:53:26,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:26,765 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:26,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:26,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:26,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:26,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:26,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:26,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:26,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:27,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 13:53:27,007 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:27,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:27,007 INFO L82 PathProgramCache]: Analyzing trace with hash 881839338, now seen corresponding path program 4 times [2021-07-10 13:53:27,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:27,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722005578] [2021-07-10 13:53:27,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:27,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:27,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722005578] [2021-07-10 13:53:27,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722005578] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:27,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692990311] [2021-07-10 13:53:27,044 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) [2021-07-10 13:53:27,092 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 13:53:27,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:27,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-10 13:53:27,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 13:53:27,190 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 13:53:27,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-07-10 13:53:27,222 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 13:53:27,224 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 13:53:27,224 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 13:53:27,224 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-07-10 13:53:27,229 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:27,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692990311] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:27,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:27,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-07-10 13:53:27,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631690006] [2021-07-10 13:53:27,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 13:53:27,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:27,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 13:53:27,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-07-10 13:53:27,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:27,230 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:27,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:27,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:27,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:27,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:27,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:27,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:27,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:27,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:27,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 13:53:27,480 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:27,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:27,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1427737226, now seen corresponding path program 5 times [2021-07-10 13:53:27,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:27,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277959233] [2021-07-10 13:53:27,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:27,546 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:27,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:27,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277959233] [2021-07-10 13:53:27,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277959233] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:27,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960648950] [2021-07-10 13:53:27,547 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) [2021-07-10 13:53:27,594 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-10 13:53:27,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:27,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-10 13:53:27,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 13:53:27,641 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:27,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960648950] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:27,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:27,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-07-10 13:53:27,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964806941] [2021-07-10 13:53:27,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-10 13:53:27,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:27,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-10 13:53:27,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-07-10 13:53:27,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:27,643 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:27,643 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:27,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:27,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:27,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:27,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:27,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:27,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:27,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:27,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-10 13:53:27,942 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:27,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:27,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1310908515, now seen corresponding path program 6 times [2021-07-10 13:53:27,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:27,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586510965] [2021-07-10 13:53:27,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 13:53:28,013 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:28,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586510965] [2021-07-10 13:53:28,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586510965] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:28,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957964894] [2021-07-10 13:53:28,014 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 [2021-07-10 13:53:28,065 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-10 13:53:28,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:28,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-10 13:53:28,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:28,129 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 13:53:28,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957964894] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:28,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:28,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-07-10 13:53:28,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826523821] [2021-07-10 13:53:28,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-10 13:53:28,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:28,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-10 13:53:28,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-07-10 13:53:28,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:28,131 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:28,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:28,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:28,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:28,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:28,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:28,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:28,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:28,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:28,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:28,432 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-10 13:53:28,432 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:28,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:28,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1932768771, now seen corresponding path program 7 times [2021-07-10 13:53:28,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:28,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148995455] [2021-07-10 13:53:28,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 13:53:28,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:28,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148995455] [2021-07-10 13:53:28,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148995455] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:28,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048800743] [2021-07-10 13:53:28,526 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 [2021-07-10 13:53:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:28,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-10 13:53:28,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 13:53:28,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048800743] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:28,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:28,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-10 13:53:28,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639760741] [2021-07-10 13:53:28,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-10 13:53:28,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:28,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-10 13:53:28,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-07-10 13:53:28,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:28,652 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:28,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:28,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:28,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:28,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:28,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:28,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:28,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:28,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:28,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:28,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:28,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:29,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-10 13:53:29,000 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:29,001 INFO L82 PathProgramCache]: Analyzing trace with hash -264399773, now seen corresponding path program 8 times [2021-07-10 13:53:29,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:29,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34487361] [2021-07-10 13:53:29,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 13:53:29,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:29,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34487361] [2021-07-10 13:53:29,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34487361] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:29,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028827477] [2021-07-10 13:53:29,118 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 [2021-07-10 13:53:29,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 13:53:29,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:29,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-10 13:53:29,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:29,319 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 13:53:29,319 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028827477] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:29,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:29,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-07-10 13:53:29,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918275544] [2021-07-10 13:53:29,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 13:53:29,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:29,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 13:53:29,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-07-10 13:53:29,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:29,322 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:29,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:29,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:29,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:29,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:29,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:29,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:29,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:29,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:29,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:29,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:29,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:29,660 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-10 13:53:29,662 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:29,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:29,663 INFO L82 PathProgramCache]: Analyzing trace with hash 342852099, now seen corresponding path program 9 times [2021-07-10 13:53:29,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:29,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298891308] [2021-07-10 13:53:29,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:29,719 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:29,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:29,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298891308] [2021-07-10 13:53:29,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298891308] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:29,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192259427] [2021-07-10 13:53:29,719 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 [2021-07-10 13:53:29,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-10 13:53:29,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:29,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-10 13:53:29,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:30,019 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-10 13:53:30,019 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 13:53:30,020 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 [2021-07-10 13:53:30,854 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 266 [2021-07-10 13:53:30,960 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 266 [2021-07-10 13:53:32,499 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 13:53:32,500 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 13:53:32,500 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-10 13:53:32,501 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-07-10 13:53:32,504 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:32,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192259427] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:32,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:32,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2021-07-10 13:53:32,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587574541] [2021-07-10 13:53:32,505 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-10 13:53:32,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:32,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-10 13:53:32,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-07-10 13:53:32,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:32,506 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:32,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.619047619047619) internal successors, (34), 20 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:32,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-10 13:53:32,784 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:32,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:32,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1987790947, now seen corresponding path program 10 times [2021-07-10 13:53:32,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:32,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919749370] [2021-07-10 13:53:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:32,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:32,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919749370] [2021-07-10 13:53:32,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919749370] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:32,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482579580] [2021-07-10 13:53:32,885 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 [2021-07-10 13:53:32,974 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 13:53:32,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:32,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-10 13:53:32,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:33,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482579580] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:33,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:33,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-07-10 13:53:33,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342658312] [2021-07-10 13:53:33,027 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-10 13:53:33,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:33,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-10 13:53:33,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-10 13:53:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:33,028 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:33,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 14 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) [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:33,028 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 13:53:33,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 13:53:33,381 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:33,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:33,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1492704682, now seen corresponding path program 11 times [2021-07-10 13:53:33,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:33,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671660220] [2021-07-10 13:53:33,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:33,494 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-10 13:53:33,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:33,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671660220] [2021-07-10 13:53:33,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671660220] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:33,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464756449] [2021-07-10 13:53:33,495 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 [2021-07-10 13:53:33,575 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-10 13:53:33,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:33,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-10 13:53:33,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 3 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:33,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464756449] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:33,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:33,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 24 [2021-07-10 13:53:33,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072252253] [2021-07-10 13:53:33,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-10 13:53:33,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:33,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-10 13:53:33,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2021-07-10 13:53:33,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:33,804 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:33,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.44) internal successors, (36), 24 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:33,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 13:53:33,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 13:53:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 13:53:34,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable314 [2021-07-10 13:53:34,585 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:34,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:34,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1730972682, now seen corresponding path program 12 times [2021-07-10 13:53:34,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:34,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123990869] [2021-07-10 13:53:34,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-10 13:53:34,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:34,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123990869] [2021-07-10 13:53:34,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123990869] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:34,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636632164] [2021-07-10 13:53:34,709 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 [2021-07-10 13:53:34,748 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-10 13:53:34,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:34,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-10 13:53:34,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:35,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636632164] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:35,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:35,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 26 [2021-07-10 13:53:35,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702478881] [2021-07-10 13:53:35,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-10 13:53:35,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:35,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-10 13:53:35,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-07-10 13:53:35,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:35,015 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:35,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 26 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 13:53:35,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 13:53:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 13:53:35,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 13:53:35,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 13:53:35,617 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:35,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:35,617 INFO L82 PathProgramCache]: Analyzing trace with hash 527346090, now seen corresponding path program 13 times [2021-07-10 13:53:35,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:35,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546877765] [2021-07-10 13:53:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-10 13:53:35,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:35,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546877765] [2021-07-10 13:53:35,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546877765] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:35,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824243870] [2021-07-10 13:53:35,791 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 [2021-07-10 13:53:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:35,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 23 conjunts are in the unsatisfiable core [2021-07-10 13:53:35,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:35,995 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-10 13:53:35,995 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824243870] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:35,995 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 13:53:35,995 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-07-10 13:53:35,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816411592] [2021-07-10 13:53:35,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-10 13:53:35,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 13:53:35,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-10 13:53:35,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-07-10 13:53:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:35,996 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 13:53:35,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 13:53:35,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 13:53:35,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 13:53:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 13:53:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-10 13:53:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 13:53:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-10 13:53:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 13:53:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 13:53:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 13:53:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 13:53:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 13:53:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 13:53:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 13:53:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 13:53:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-10 13:53:36,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable316 [2021-07-10 13:53:36,501 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 13:53:36,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 13:53:36,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1869627402, now seen corresponding path program 14 times [2021-07-10 13:53:36,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 13:53:36,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140736328] [2021-07-10 13:53:36,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 13:53:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 13:53:36,618 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 13:53:36,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 13:53:36,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140736328] [2021-07-10 13:53:36,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140736328] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 13:53:36,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958312546] [2021-07-10 13:53:36,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-07-10 13:53:36,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 13:53:36,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 13:53:36,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-10 13:53:36,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 13:53:37,351 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-07-10 13:53:37,351 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 13:53:37,352 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 [2021-07-10 13:53:38,172 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 380 [2021-07-10 13:53:38,329 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 383 [2021-07-10 13:53:39,338 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 321 [2021-07-10 13:53:39,530 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 513 [2021-07-10 13:53:39,776 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 516 [2021-07-10 13:53:40,238 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 757 [2021-07-10 13:53:40,786 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 938 DAG size of output: 782 [2021-07-10 13:53:41,646 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 397 [2021-07-10 13:53:41,820 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 432 [2021-07-10 13:53:42,042 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 497 DAG size of output: 439 [2021-07-10 13:53:42,759 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 414 DAG size of output: 387 [2021-07-10 13:53:43,398 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 392 [2021-07-10 13:53:43,680 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 718 DAG size of output: 687 [2021-07-10 13:53:44,034 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 720 [2021-07-10 13:53:44,464 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 760 DAG size of output: 727 [2021-07-10 13:53:45,203 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 1118 DAG size of output: 985 [2021-07-10 13:53:46,068 WARN L205 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 1140 DAG size of output: 1008 [2021-07-10 13:53:47,577 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1924 DAG size of output: 1536 [2021-07-10 13:53:48,625 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 483 [2021-07-10 13:53:48,830 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 486 [2021-07-10 13:53:49,469 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 344 [2021-07-10 13:53:49,643 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 347 [2021-07-10 13:53:50,032 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 711 [2021-07-10 13:53:50,502 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 893 DAG size of output: 737 [2021-07-10 13:53:51,191 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 367 [2021-07-10 13:53:51,340 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 402 [2021-07-10 13:53:51,535 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 470 DAG size of output: 408 [2021-07-10 13:53:52,633 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 391 DAG size of output: 363 [2021-07-10 13:53:52,911 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 691 DAG size of output: 657 [2021-07-10 13:53:53,245 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 690 [2021-07-10 13:53:53,625 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 696 [2021-07-10 13:53:54,260 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 1082 DAG size of output: 940 [2021-07-10 13:53:55,013 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 964 [2021-07-10 13:53:56,347 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1864 DAG size of output: 1466 [2021-07-10 13:53:59,668 WARN L205 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 3619 DAG size of output: 2834 [2021-07-10 13:54:03,491 WARN L205 SmtUtils]: Spent 3.81 s on a formula simplification. DAG size of input: 3664 DAG size of output: 2879 [2021-07-10 13:54:07,831 WARN L205 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-07-10 13:54:12,164 WARN L205 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-07-10 13:54:17,331 WARN L205 SmtUtils]: Spent 5.16 s on a formula simplification. DAG size of input: 3707 DAG size of output: 2922 [2021-07-10 13:54:22,137 WARN L205 SmtUtils]: Spent 4.78 s on a formula simplification. DAG size of input: 2924 DAG size of output: 2915 [2021-07-10 13:54:27,331 WARN L205 SmtUtils]: Spent 5.16 s on a formula simplification. DAG size of input: 2912 DAG size of output: 3217 [2021-07-10 13:54:35,392 WARN L205 SmtUtils]: Spent 8.03 s on a formula simplification. DAG size of input: 2696 DAG size of output: 3553 [2021-07-10 13:54:35,559 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 2516 [2021-07-10 13:54:36,646 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 278 [2021-07-10 13:54:38,552 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 2495 DAG size of output: 2494 [2021-07-10 13:54:45,170 WARN L205 SmtUtils]: Spent 6.60 s on a formula simplification. DAG size of input: 2493 DAG size of output: 3700 [2021-07-10 13:54:45,488 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 2169 DAG size of output: 2169 [2021-07-10 13:54:45,767 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 2126 DAG size of output: 2126 [2021-07-10 13:54:46,751 WARN L205 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 977 [2021-07-10 13:54:47,037 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 339 [2021-07-10 13:54:48,514 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 257 [2021-07-10 13:54:48,735 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 340 [2021-07-10 13:54:49,050 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 396 [2021-07-10 13:54:49,525 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 799 DAG size of output: 592 [2021-07-10 13:54:50,474 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 243 [2021-07-10 13:54:50,819 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 265 [2021-07-10 13:54:51,134 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 425 [2021-07-10 13:54:51,591 WARN L205 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 623 [2021-07-10 13:54:52,635 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 1090 DAG size of output: 844 [2021-07-10 13:54:53,916 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 322 [2021-07-10 13:54:54,193 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 350 [2021-07-10 13:54:55,143 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 285 [2021-07-10 13:54:55,382 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 391 [2021-07-10 13:54:55,711 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 449 [2021-07-10 13:54:56,591 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 238 [2021-07-10 13:54:56,808 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 360 [2021-07-10 13:54:57,070 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 396 [2021-07-10 13:54:57,418 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 455 [2021-07-10 13:54:58,158 WARN L205 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 659 [2021-07-10 13:54:59,122 WARN L205 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 827 DAG size of output: 710 [2021-07-10 13:55:00,023 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 245 [2021-07-10 13:55:00,190 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 305 [2021-07-10 13:55:00,419 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 409 [2021-07-10 13:55:00,737 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 526 DAG size of output: 472 [2021-07-10 13:55:01,745 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 221 [2021-07-10 13:55:01,896 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 275 [2021-07-10 13:55:02,104 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 374 [2021-07-10 13:55:02,392 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 490 DAG size of output: 411 [2021-07-10 13:55:02,756 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 475 [2021-07-10 13:55:03,498 WARN L205 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 831 DAG size of output: 714 [2021-07-10 13:55:05,363 WARN L205 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 1682 DAG size of output: 1237 [2021-07-10 13:55:08,374 WARN L205 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 2518 DAG size of output: 1697 [2021-07-10 13:55:11,836 WARN L205 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 2537 DAG size of output: 1736 [2021-07-10 13:55:16,301 WARN L205 SmtUtils]: Spent 4.45 s on a formula simplification. DAG size of input: 2890 DAG size of output: 1831 [2021-07-10 13:55:17,413 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 700 DAG size of output: 1050 [2021-07-10 13:55:17,787 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 660 [2021-07-10 13:55:18,369 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 647 DAG size of output: 823 [2021-07-10 13:55:19,360 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 257 [2021-07-10 13:55:19,562 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 285 [2021-07-10 13:55:19,836 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 348 [2021-07-10 13:55:20,214 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 513 [2021-07-10 13:55:20,410 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 429 [2021-07-10 13:55:21,348 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 283 [2021-07-10 13:55:21,549 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 309 [2021-07-10 13:55:22,437 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 270 [2021-07-10 13:55:22,598 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 296 [2021-07-10 13:55:22,988 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 492 [2021-07-10 13:55:23,524 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 712 DAG size of output: 624 [2021-07-10 13:55:24,292 WARN L205 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 814 [2021-07-10 13:55:25,513 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1058 [2021-07-10 13:55:27,197 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1723 DAG size of output: 1396 [2021-07-10 13:55:27,881 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 828 [2021-07-10 13:55:28,482 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 766 [2021-07-10 13:55:28,864 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 639 [2021-07-10 13:55:28,974 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 332 [2021-07-10 13:55:30,637 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 248 [2021-07-10 13:55:30,793 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 500 DAG size of output: 212 [2021-07-10 13:55:31,098 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 388 [2021-07-10 13:55:31,710 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 707 [2021-07-10 13:55:32,651 WARN L205 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 1357 DAG size of output: 863 [2021-07-10 13:55:34,025 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1729 DAG size of output: 1197 [2021-07-10 13:55:37,437 WARN L205 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 2363 DAG size of output: 1672 [2021-07-10 13:55:41,376 WARN L205 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 2424 DAG size of output: 1716 [2021-07-10 13:55:47,004 WARN L205 SmtUtils]: Spent 5.62 s on a formula simplification. DAG size of input: 2831 DAG size of output: 1844 [2021-07-10 13:55:58,129 WARN L205 SmtUtils]: Spent 11.11 s on a formula simplification. DAG size of input: 5382 DAG size of output: 3237 [2021-07-10 13:55:59,405 WARN L205 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 707 DAG size of output: 1000 [2021-07-10 13:55:59,975 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 687 DAG size of output: 712 [2021-07-10 13:56:00,760 WARN L205 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 683 DAG size of output: 877 [2021-07-10 13:56:01,255 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 729 [2021-07-10 13:56:02,061 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 262 [2021-07-10 13:56:02,278 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 300 [2021-07-10 13:56:02,494 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 374 [2021-07-10 13:56:03,376 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 229 [2021-07-10 13:56:04,199 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 344 [2021-07-10 13:56:05,169 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 334 [2021-07-10 13:56:06,256 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 369 [2021-07-10 13:56:06,695 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 560 [2021-07-10 13:56:07,491 WARN L205 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 902 DAG size of output: 726 [2021-07-10 13:56:08,477 WARN L205 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 962 DAG size of output: 768 [2021-07-10 13:56:09,708 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1071 DAG size of output: 879 [2021-07-10 13:56:11,022 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1304 DAG size of output: 904 [2021-07-10 13:56:12,943 WARN L205 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 1744 DAG size of output: 1304 [2021-07-10 13:56:15,536 WARN L205 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 2015 DAG size of output: 1655 [2021-07-10 13:56:16,362 WARN L205 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 879 [2021-07-10 13:56:16,730 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 490 [2021-07-10 13:56:17,027 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 491 [2021-07-10 13:56:18,253 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 260 [2021-07-10 13:56:19,132 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 289 [2021-07-10 13:56:19,419 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 317 [2021-07-10 13:56:19,820 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 433 [2021-07-10 13:56:20,541 WARN L205 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 666 [2021-07-10 13:56:21,598 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 945 DAG size of output: 803 [2021-07-10 13:56:21,778 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 354 [2021-07-10 13:56:22,471 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 338 [2021-07-10 13:56:22,649 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 377 [2021-07-10 13:56:22,937 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 515 DAG size of output: 443 [2021-07-10 13:56:24,213 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1314 DAG size of output: 1007 [2021-07-10 13:56:26,102 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1586 DAG size of output: 1355 [2021-07-10 13:56:31,005 WARN L205 SmtUtils]: Spent 4.90 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2064 [2021-07-10 13:56:37,775 WARN L205 SmtUtils]: Spent 6.76 s on a formula simplification. DAG size of input: 2989 DAG size of output: 2220 [2021-07-10 13:56:45,435 WARN L205 SmtUtils]: Spent 7.65 s on a formula simplification. DAG size of input: 3049 DAG size of output: 2305 [2021-07-10 13:56:46,302 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 573 [2021-07-10 13:56:47,001 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 296 [2021-07-10 13:56:47,164 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 358 [2021-07-10 13:56:47,867 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 451 [2021-07-10 13:56:48,808 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 215 [2021-07-10 13:56:48,964 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 254 [2021-07-10 13:56:49,200 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 348 [2021-07-10 13:56:49,497 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 399 [2021-07-10 13:56:49,883 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 482 DAG size of output: 425 [2021-07-10 13:56:50,351 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 485 [2021-07-10 13:56:50,909 WARN L205 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 521 [2021-07-10 13:56:51,988 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 221 [2021-07-10 13:56:52,177 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 328 [2021-07-10 13:56:52,440 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 369 [2021-07-10 13:56:52,764 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 394 [2021-07-10 13:56:53,421 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 469 DAG size of output: 433 [2021-07-10 13:56:53,957 WARN L205 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 517 [2021-07-10 13:56:54,612 WARN L205 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 580 [2021-07-10 13:56:55,948 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 978 DAG size of output: 863 [2021-07-10 13:56:56,866 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 202 [2021-07-10 13:56:57,041 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 256 [2021-07-10 13:56:57,290 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 425 DAG size of output: 384 [2021-07-10 13:56:57,626 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 442 [2021-07-10 13:56:57,816 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 292 [2021-07-10 13:56:58,453 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 328 [2021-07-10 13:56:58,695 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 391 [2021-07-10 13:56:58,983 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 450 [2021-07-10 13:56:59,700 WARN L205 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 639 [2021-07-10 13:57:00,806 WARN L205 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 800 DAG size of output: 715 [2021-07-10 13:57:03,339 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 1872 DAG size of output: 1482 [2021-07-10 13:57:06,628 WARN L205 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 2070 DAG size of output: 1568 [2021-07-10 13:57:06,767 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 361 [2021-07-10 13:57:07,375 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 344 [2021-07-10 13:57:07,579 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 367 [2021-07-10 13:57:08,174 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 246 [2021-07-10 13:57:08,516 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 486 [2021-07-10 13:57:09,562 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 243 [2021-07-10 13:57:09,706 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 266 [2021-07-10 13:57:09,922 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 324 [2021-07-10 13:57:10,216 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 525 DAG size of output: 457 [2021-07-10 13:57:10,638 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 599 [2021-07-10 13:57:11,502 WARN L205 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 817 [2021-07-10 13:57:12,695 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1006 DAG size of output: 867 [2021-07-10 13:57:13,776 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 318 [2021-07-10 13:57:13,951 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 388 [2021-07-10 13:57:14,197 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 406 [2021-07-10 13:57:14,478 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 422 [2021-07-10 13:57:14,858 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 470 [2021-07-10 13:57:16,629 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1433 DAG size of output: 1082 [2021-07-10 13:57:21,881 WARN L205 SmtUtils]: Spent 5.24 s on a formula simplification. DAG size of input: 2994 DAG size of output: 2129 [2021-07-10 13:57:27,779 WARN L205 SmtUtils]: Spent 5.89 s on a formula simplification. DAG size of input: 3038 DAG size of output: 2179 [2021-07-10 13:57:42,254 WARN L205 SmtUtils]: Spent 14.46 s on a formula simplification. DAG size of input: 5719 DAG size of output: 3928 [2021-07-10 13:58:10,308 WARN L205 SmtUtils]: Spent 28.03 s on a formula simplification. DAG size of input: 8989 DAG size of output: 5710 [2021-07-10 13:58:11,338 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 329 [2021-07-10 13:58:11,518 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 340 [2021-07-10 13:58:42,882 WARN L205 SmtUtils]: Spent 31.35 s on a formula simplification. DAG size of input: 9287 DAG size of output: 5929 [2021-07-10 13:59:20,168 WARN L205 SmtUtils]: Spent 37.24 s on a formula simplification. DAG size of input: 10982 DAG size of output: 7649 [2021-07-10 13:59:21,234 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 295 [2021-07-10 13:59:21,426 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 410 [2021-07-10 13:59:21,677 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 416 [2021-07-10 13:59:59,556 WARN L205 SmtUtils]: Spent 37.86 s on a formula simplification. DAG size of input: 11394 DAG size of output: 7943 [2021-07-10 14:00:39,616 WARN L205 SmtUtils]: Spent 40.01 s on a formula simplification. DAG size of input: 11649 DAG size of output: 8097 [2021-07-10 14:01:26,494 WARN L205 SmtUtils]: Spent 46.82 s on a formula simplification. DAG size of input: 12976 DAG size of output: 9218 [2021-07-10 14:01:30,258 WARN L205 SmtUtils]: Spent 3.72 s on a formula simplification. DAG size of input: 1243 DAG size of output: 1636 [2021-07-10 14:01:30,418 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 1238 [2021-07-10 14:01:31,880 WARN L205 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 1217 DAG size of output: 1216 [2021-07-10 14:01:32,524 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 240 [2021-07-10 14:01:35,543 WARN L205 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 1215 DAG size of output: 1779 [2021-07-10 14:01:35,696 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1093 DAG size of output: 1093 [2021-07-10 14:01:35,853 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1052 DAG size of output: 1052 [2021-07-10 14:01:36,968 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 686 DAG size of output: 991 [2021-07-10 14:01:37,705 WARN L205 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 682 DAG size of output: 739 [2021-07-10 14:01:38,710 WARN L205 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 766 [2021-07-10 14:01:39,519 WARN L205 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 791 [2021-07-10 14:01:39,870 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 441 [2021-07-10 14:01:40,585 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 258 [2021-07-10 14:01:40,773 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 291 [2021-07-10 14:01:41,143 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 348 [2021-07-10 14:01:41,525 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 453 [2021-07-10 14:01:41,932 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 477 [2021-07-10 14:01:43,481 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 417 [2021-07-10 14:01:43,816 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 435 [2021-07-10 14:01:44,615 WARN L205 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 758 [2021-07-10 14:01:45,698 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1152 DAG size of output: 843 [2021-07-10 14:01:47,171 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1015 [2021-07-10 14:01:48,118 WARN L205 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 765 [2021-07-10 14:01:49,229 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 675 DAG size of output: 790 [2021-07-10 14:01:49,593 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 428 [2021-07-10 14:01:50,313 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 281 [2021-07-10 14:01:50,526 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 501 DAG size of output: 391 [2021-07-10 14:01:50,897 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 464 [2021-07-10 14:01:51,025 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 266 [2021-07-10 14:01:51,158 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 267 [2021-07-10 14:01:51,868 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 234 [2021-07-10 14:01:52,039 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 259 [2021-07-10 14:01:52,864 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 265 [2021-07-10 14:01:53,049 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 290 [2021-07-10 14:01:53,500 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 384 [2021-07-10 14:01:53,653 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 242 [2021-07-10 14:01:54,468 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 261 [2021-07-10 14:01:54,991 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 319 [2021-07-10 14:01:55,277 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 344 [2021-07-10 14:01:56,068 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 516 [2021-07-10 14:01:57,162 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 592 DAG size of output: 578 [2021-07-10 14:01:58,465 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 819 DAG size of output: 697 [2021-07-10 14:02:00,261 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1184 DAG size of output: 905 [2021-07-10 14:02:02,532 WARN L205 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 1312 DAG size of output: 996 [2021-07-10 14:02:05,310 WARN L205 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 1416 DAG size of output: 1170 [2021-07-10 14:02:09,936 WARN L205 SmtUtils]: Spent 4.62 s on a formula simplification. DAG size of input: 1833 DAG size of output: 1517 [2021-07-10 14:02:16,150 WARN L205 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 2174 DAG size of output: 1614 [2021-07-10 14:02:16,542 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 546 [2021-07-10 14:02:16,757 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 391 [2021-07-10 14:02:16,956 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 417 [2021-07-10 14:02:17,308 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 455 [2021-07-10 14:02:18,839 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 216 [2021-07-10 14:02:19,033 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 246 [2021-07-10 14:02:19,271 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 330 [2021-07-10 14:02:19,648 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 656 DAG size of output: 454 [2021-07-10 14:02:20,181 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 836 DAG size of output: 572 [2021-07-10 14:02:20,476 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 323 [2021-07-10 14:02:21,682 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 162 [2021-07-10 14:02:21,843 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 220 [2021-07-10 14:02:22,066 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 247 [2021-07-10 14:02:22,347 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 336 [2021-07-10 14:02:22,730 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 404 [2021-07-10 14:02:23,284 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 290 [2021-07-10 14:02:23,883 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 847 DAG size of output: 578 [2021-07-10 14:02:25,120 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 933 DAG size of output: 641 [2021-07-10 14:02:26,548 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 960 DAG size of output: 668 [2021-07-10 14:02:28,471 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1138 DAG size of output: 701 [2021-07-10 14:02:28,700 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 487 [2021-07-10 14:02:28,966 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-07-10 14:02:29,138 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-07-10 14:02:29,316 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 362 [2021-07-10 14:02:30,442 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 219 [2021-07-10 14:02:30,662 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 243 [2021-07-10 14:02:30,918 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 341 [2021-07-10 14:02:31,285 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 613 DAG size of output: 403 [2021-07-10 14:02:31,762 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 476 [2021-07-10 14:02:31,960 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-07-10 14:02:32,140 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-07-10 14:02:33,244 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 313 [2021-07-10 14:02:33,422 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 333 [2021-07-10 14:02:33,704 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 401 [2021-07-10 14:02:34,089 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 606 DAG size of output: 471 [2021-07-10 14:02:35,093 WARN L205 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 837 DAG size of output: 632 [2021-07-10 14:02:36,385 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1009 DAG size of output: 667 [2021-07-10 14:02:39,628 WARN L205 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 1961 DAG size of output: 1076 [2021-07-10 14:02:49,070 WARN L205 SmtUtils]: Spent 9.43 s on a formula simplification. DAG size of input: 3390 DAG size of output: 2173 [2021-07-10 14:03:00,164 WARN L205 SmtUtils]: Spent 10.71 s on a formula simplification. DAG size of input: 3507 DAG size of output: 2263 [2021-07-10 14:03:12,826 WARN L205 SmtUtils]: Spent 12.64 s on a formula simplification. DAG size of input: 4235 DAG size of output: 2787 [2021-07-10 14:03:25,719 WARN L205 SmtUtils]: Spent 12.87 s on a formula simplification. DAG size of input: 4456 DAG size of output: 2926 [2021-07-10 14:03:38,979 WARN L205 SmtUtils]: Spent 13.24 s on a formula simplification. DAG size of input: 4635 DAG size of output: 3051 [2021-07-10 14:03:54,125 WARN L205 SmtUtils]: Spent 15.13 s on a formula simplification. DAG size of input: 5120 DAG size of output: 3306 [2021-07-10 14:04:57,095 WARN L205 SmtUtils]: Spent 1.05 m on a formula simplification. DAG size of input: 16679 DAG size of output: 11341 [2021-07-10 14:06:07,057 WARN L205 SmtUtils]: Spent 1.16 m on a formula simplification. DAG size of input: 16692 DAG size of output: 11355 [2021-07-10 14:07:15,659 WARN L205 SmtUtils]: Spent 1.14 m on a formula simplification. DAG size of input: 16692 DAG size of output: 11355 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown