/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-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 09:32:09,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 09:32:09,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 09:32:09,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 09:32:09,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 09:32:09,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 09:32:09,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 09:32:09,372 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-Persistent-NoLbe.epf [2021-06-14 09:32:09,408 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 09:32:09,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 09:32:09,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 09:32:09,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 09:32:09,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 09:32:09,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 09:32:09,409 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 09:32:09,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 09:32:09,409 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 09:32:09,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 09:32:09,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 09:32:09,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 09:32:09,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 09:32:09,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 09:32:09,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 09:32:09,410 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 09:32:09,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 09:32:09,410 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 09:32:09,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 09:32:09,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 09:32:09,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 09:32:09,411 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 09:32:09,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 09:32:09,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 09:32:09,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 09:32:09,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 09:32:09,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 09:32:09,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 09:32:09,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 09:32:09,412 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 09:32:09,412 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 09:32:09,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 09:32:09,412 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-06-14 09:32:09,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 09:32:09,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 09:32:09,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 09:32:09,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 09:32:09,636 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 09:32:09,639 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 09:32:09,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl [2021-06-14 09:32:09,639 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-4.wvr.bpl' [2021-06-14 09:32:09,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 09:32:09,698 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 09:32:09,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 09:32:09,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 09:32:09,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 09:32:09,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/1) ... [2021-06-14 09:32:09,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/1) ... [2021-06-14 09:32:09,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 09:32:09,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 09:32:09,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 09:32:09,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 09:32:09,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/1) ... [2021-06-14 09:32:09,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/1) ... [2021-06-14 09:32:09,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/1) ... [2021-06-14 09:32:09,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/1) ... [2021-06-14 09:32:09,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/1) ... [2021-06-14 09:32:09,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/1) ... [2021-06-14 09:32:09,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/1) ... [2021-06-14 09:32:09,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 09:32:09,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 09:32:09,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 09:32:09,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 09:32:09,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 09:32:09,778 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 09:32:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 09:32:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 09:32:09,779 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 09:32:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 09:32:09,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 09:32:09,779 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 09:32:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 09:32:09,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 09:32:09,781 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 09:32:09,940 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 09:32:09,940 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-06-14 09:32:09,940 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-06-14 09:32:09,941 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-06-14 09:32:09,942 INFO L202 PluginConnector]: Adding new model unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 09:32:09 BoogieIcfgContainer [2021-06-14 09:32:09,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 09:32:09,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 09:32:09,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 09:32:09,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 09:32:09,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 09:32:09" (1/2) ... [2021-06-14 09:32:09,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f673512 and model type unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 09:32:09, skipping insertion in model container [2021-06-14 09:32:09,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 09:32:09" (2/2) ... [2021-06-14 09:32:09,946 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-4.wvr.bpl [2021-06-14 09:32:09,949 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 09:32:09,949 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 09:32:09,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 09:32:09,950 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 09:32:09,967 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-14 09:32:09,979 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 [2021-06-14 09:32:10,029 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 09:32:10,029 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 09:32:10,029 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 09:32:10,029 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 09:32:10,030 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 09:32:10,030 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 09:32:10,030 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 09:32:10,030 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 09:32:10,060 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:10,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:10,064 INFO L82 PathProgramCache]: Analyzing trace with hash -530401653, now seen corresponding path program 1 times [2021-06-14 09:32:10,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:10,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697180584] [2021-06-14 09:32:10,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:10,170 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:10,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697180584] [2021-06-14 09:32:10,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697180584] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 09:32:10,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 09:32:10,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-14 09:32:10,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640338387] [2021-06-14 09:32:10,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-14 09:32:10,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:10,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-14 09:32:10,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-14 09:32:10,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:10,183 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:10,184 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) [2021-06-14 09:32:10,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:10,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:10,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 09:32:10,195 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:10,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:10,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1897859861, now seen corresponding path program 1 times [2021-06-14 09:32:10,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:10,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851089288] [2021-06-14 09:32:10,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:10,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:10,222 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:10,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851089288] [2021-06-14 09:32:10,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851089288] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:10,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409171524] [2021-06-14 09:32:10,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:10,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-14 09:32:10,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:10,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:10,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409171524] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:10,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:10,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-06-14 09:32:10,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351001359] [2021-06-14 09:32:10,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-14 09:32:10,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:10,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-14 09:32:10,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-14 09:32:10,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:10,319 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:10,319 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) [2021-06-14 09:32:10,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:10,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:10,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:10,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:10,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:10,563 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:10,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:10,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1318957172, now seen corresponding path program 1 times [2021-06-14 09:32:10,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:10,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48941418] [2021-06-14 09:32:10,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 09:32:10,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:10,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48941418] [2021-06-14 09:32:10,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48941418] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:10,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611061143] [2021-06-14 09:32:10,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:10,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-14 09:32:10,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:10,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 09:32:10,668 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611061143] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:10,668 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:10,668 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-06-14 09:32:10,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987744921] [2021-06-14 09:32:10,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 09:32:10,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:10,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 09:32:10,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-14 09:32:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:10,670 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:10,670 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) [2021-06-14 09:32:10,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:10,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:10,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:10,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:10,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:10,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:10,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:10,900 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:10,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:10,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1451611860, now seen corresponding path program 2 times [2021-06-14 09:32:10,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:10,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392192970] [2021-06-14 09:32:10,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 09:32:10,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:10,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392192970] [2021-06-14 09:32:10,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392192970] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:10,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65332132] [2021-06-14 09:32:10,954 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 [2021-06-14 09:32:10,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 09:32:10,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:10,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-14 09:32:10,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 09:32:11,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65332132] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:11,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:11,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-06-14 09:32:11,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284753544] [2021-06-14 09:32:11,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-14 09:32:11,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:11,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-14 09:32:11,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-14 09:32:11,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:11,071 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:11,072 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) [2021-06-14 09:32:11,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:11,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:11,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:11,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:11,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:11,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:11,307 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:11,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:11,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1268939892, now seen corresponding path program 3 times [2021-06-14 09:32:11,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:11,308 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548635276] [2021-06-14 09:32:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:11,374 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 09:32:11,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:11,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548635276] [2021-06-14 09:32:11,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548635276] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:11,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163887840] [2021-06-14 09:32:11,375 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 [2021-06-14 09:32:11,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-14 09:32:11,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:11,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-14 09:32:11,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 09:32:11,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163887840] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:11,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:11,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-06-14 09:32:11,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824215716] [2021-06-14 09:32:11,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-14 09:32:11,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:11,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-14 09:32:11,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-14 09:32:11,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:11,455 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:11,456 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 09:32:11,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:11,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:11,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:11,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:11,456 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:11,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:11,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:11,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:11,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:11,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:11,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:11,711 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:11,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:11,711 INFO L82 PathProgramCache]: Analyzing trace with hash -98923820, now seen corresponding path program 4 times [2021-06-14 09:32:11,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:11,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755638529] [2021-06-14 09:32:11,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:11,765 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:11,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:11,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755638529] [2021-06-14 09:32:11,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755638529] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:11,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125330428] [2021-06-14 09:32:11,766 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:11,792 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 09:32:11,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:11,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-14 09:32:11,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:11,939 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 09:32:11,940 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 [2021-06-14 09:32:11,996 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 09:32:11,997 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 09:32:11,998 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 09:32:11,998 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-06-14 09:32:12,004 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:12,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125330428] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:12,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:12,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-06-14 09:32:12,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501358402] [2021-06-14 09:32:12,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-14 09:32:12,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:12,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-14 09:32:12,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-06-14 09:32:12,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:12,005 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:12,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 09:32:12,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:12,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:12,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:12,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:12,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:12,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:12,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:12,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:12,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:12,253 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:12,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:12,253 INFO L82 PathProgramCache]: Analyzing trace with hash 446974068, now seen corresponding path program 5 times [2021-06-14 09:32:12,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:12,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254053522] [2021-06-14 09:32:12,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:12,300 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:12,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:12,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254053522] [2021-06-14 09:32:12,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254053522] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:12,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574667044] [2021-06-14 09:32:12,302 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:12,344 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-14 09:32:12,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:12,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-14 09:32:12,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:12,407 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:12,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574667044] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:12,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:12,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-06-14 09:32:12,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696369872] [2021-06-14 09:32:12,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-14 09:32:12,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:12,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-14 09:32:12,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-06-14 09:32:12,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:12,408 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:12,408 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) [2021-06-14 09:32:12,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:12,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:12,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:12,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:12,409 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:12,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:12,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:12,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-14 09:32:12,686 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:12,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:12,687 INFO L82 PathProgramCache]: Analyzing trace with hash 994364939, now seen corresponding path program 6 times [2021-06-14 09:32:12,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:12,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181368851] [2021-06-14 09:32:12,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-14 09:32:12,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:12,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181368851] [2021-06-14 09:32:12,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181368851] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:12,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221501305] [2021-06-14 09:32:12,748 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 [2021-06-14 09:32:12,771 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-14 09:32:12,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:12,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-14 09:32:12,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:12,838 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-14 09:32:12,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221501305] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:12,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:12,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-14 09:32:12,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546104578] [2021-06-14 09:32:12,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-14 09:32:12,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:12,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-14 09:32:12,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-06-14 09:32:12,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:12,840 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:12,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 09:32:12,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:12,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:12,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:12,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:12,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:12,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:12,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:12,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:12,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:13,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-14 09:32:13,153 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:13,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:13,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1616225195, now seen corresponding path program 7 times [2021-06-14 09:32:13,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:13,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087188900] [2021-06-14 09:32:13,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:13,234 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-14 09:32:13,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:13,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087188900] [2021-06-14 09:32:13,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087188900] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:13,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739854513] [2021-06-14 09:32:13,235 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 [2021-06-14 09:32:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:13,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-14 09:32:13,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:13,343 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-14 09:32:13,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739854513] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:13,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:13,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-06-14 09:32:13,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338494772] [2021-06-14 09:32:13,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-14 09:32:13,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:13,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-14 09:32:13,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-06-14 09:32:13,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:13,344 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:13,345 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) [2021-06-14 09:32:13,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:13,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:13,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:13,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:13,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:13,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:13,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:13,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:13,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:13,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:13,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:13,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:13,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:13,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:13,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:13,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:13,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:13,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:13,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-14 09:32:13,685 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:13,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:13,685 INFO L82 PathProgramCache]: Analyzing trace with hash -580943349, now seen corresponding path program 8 times [2021-06-14 09:32:13,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:13,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277494754] [2021-06-14 09:32:13,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:13,773 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-14 09:32:13,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:13,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277494754] [2021-06-14 09:32:13,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277494754] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:13,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835232193] [2021-06-14 09:32:13,773 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 [2021-06-14 09:32:13,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 09:32:13,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:13,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-14 09:32:13,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:13,885 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-14 09:32:13,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835232193] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:13,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:13,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-06-14 09:32:13,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041650687] [2021-06-14 09:32:13,887 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-14 09:32:13,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:13,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-14 09:32:13,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-06-14 09:32:13,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:13,889 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:13,889 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) [2021-06-14 09:32:13,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:13,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:13,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:13,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:13,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:13,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:13,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:14,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:14,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-14 09:32:14,229 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:14,229 INFO L82 PathProgramCache]: Analyzing trace with hash 26308523, now seen corresponding path program 9 times [2021-06-14 09:32:14,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:14,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073960017] [2021-06-14 09:32:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:14,301 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:14,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:14,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073960017] [2021-06-14 09:32:14,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073960017] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:14,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849190185] [2021-06-14 09:32:14,301 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 [2021-06-14 09:32:14,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-14 09:32:14,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:14,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-14 09:32:14,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:14,604 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-06-14 09:32:14,604 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 09:32:14,605 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 [2021-06-14 09:32:15,397 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 266 [2021-06-14 09:32:15,594 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 274 [2021-06-14 09:32:16,936 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 09:32:16,937 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 09:32:16,938 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 09:32:16,938 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-06-14 09:32:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:16,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849190185] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:16,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:16,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 20 [2021-06-14 09:32:16,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424786779] [2021-06-14 09:32:16,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-14 09:32:16,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:16,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-14 09:32:16,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-06-14 09:32:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:16,945 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:16,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:16,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:17,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-14 09:32:17,244 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:17,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:17,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1671247371, now seen corresponding path program 10 times [2021-06-14 09:32:17,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:17,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672012912] [2021-06-14 09:32:17,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:17,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:17,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672012912] [2021-06-14 09:32:17,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672012912] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:17,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394661759] [2021-06-14 09:32:17,346 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 [2021-06-14 09:32:17,371 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 09:32:17,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:17,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-14 09:32:17,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:17,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394661759] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:17,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:17,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-06-14 09:32:17,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479452961] [2021-06-14 09:32:17,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-14 09:32:17,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:17,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-14 09:32:17,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-06-14 09:32:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:17,434 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:17,434 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) [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:17,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:17,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 09:32:17,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:17,797 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:17,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:17,797 INFO L82 PathProgramCache]: Analyzing trace with hash 292131668, now seen corresponding path program 11 times [2021-06-14 09:32:17,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:17,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855695786] [2021-06-14 09:32:17,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-14 09:32:17,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:17,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855695786] [2021-06-14 09:32:17,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855695786] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:17,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360207190] [2021-06-14 09:32:17,911 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 [2021-06-14 09:32:17,941 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-14 09:32:17,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:17,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 21 conjunts are in the unsatisfiable core [2021-06-14 09:32:17,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-14 09:32:18,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360207190] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:18,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:18,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-06-14 09:32:18,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539431931] [2021-06-14 09:32:18,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-14 09:32:18,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:18,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-14 09:32:18,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2021-06-14 09:32:18,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:18,069 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:18,069 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.4) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 09:32:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:18,069 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:18,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:18,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-14 09:32:18,070 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:18,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:18,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 09:32:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 09:32:18,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable314 [2021-06-14 09:32:18,503 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:18,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:18,503 INFO L82 PathProgramCache]: Analyzing trace with hash 530399668, now seen corresponding path program 12 times [2021-06-14 09:32:18,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:18,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106869090] [2021-06-14 09:32:18,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:18,630 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-14 09:32:18,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:18,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106869090] [2021-06-14 09:32:18,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106869090] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:18,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298009416] [2021-06-14 09:32:18,630 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 [2021-06-14 09:32:18,672 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-14 09:32:18,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:18,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-14 09:32:18,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:18,916 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:18,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298009416] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:18,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:18,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 26 [2021-06-14 09:32:18,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150600556] [2021-06-14 09:32:18,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-14 09:32:18,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:18,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-14 09:32:18,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-06-14 09:32:18,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:18,918 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:18,918 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:18,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-14 09:32:18,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 09:32:18,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 09:32:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-14 09:32:19,488 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:19,489 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:19,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:19,489 INFO L82 PathProgramCache]: Analyzing trace with hash -673226924, now seen corresponding path program 13 times [2021-06-14 09:32:19,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:19,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091903971] [2021-06-14 09:32:19,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:19,645 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-14 09:32:19,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:19,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091903971] [2021-06-14 09:32:19,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091903971] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:19,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031005198] [2021-06-14 09:32:19,645 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 09:32:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:19,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-14 09:32:19,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-14 09:32:19,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031005198] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:19,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 09:32:19,835 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-06-14 09:32:19,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008814083] [2021-06-14 09:32:19,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-14 09:32:19,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 09:32:19,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-14 09:32:19,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-06-14 09:32:19,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:19,836 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 09:32:19,836 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) [2021-06-14 09:32:19,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:19,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:19,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:19,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:19,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:19,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:19,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:19,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:19,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:19,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:19,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:19,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-14 09:32:19,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-14 09:32:19,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-14 09:32:19,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 09:32:20,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-14 09:32:20,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:20,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 09:32:20,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-14 09:32:20,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-14 09:32:20,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 09:32:20,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-14 09:32:20,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:20,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 09:32:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-14 09:32:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-14 09:32:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-14 09:32:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-14 09:32:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-14 09:32:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-14 09:32:20,294 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable316 [2021-06-14 09:32:20,294 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 09:32:20,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 09:32:20,294 INFO L82 PathProgramCache]: Analyzing trace with hash 669054388, now seen corresponding path program 14 times [2021-06-14 09:32:20,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 09:32:20,295 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039210198] [2021-06-14 09:32:20,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 09:32:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 09:32:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 09:32:20,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 09:32:20,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039210198] [2021-06-14 09:32:20,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039210198] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 09:32:20,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567700993] [2021-06-14 09:32:20,403 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 [2021-06-14 09:32:20,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 09:32:20,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 09:32:20,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-14 09:32:20,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 09:32:21,043 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-06-14 09:32:21,043 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 09:32:21,044 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 [2021-06-14 09:32:21,820 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 380 [2021-06-14 09:32:21,970 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 383 [2021-06-14 09:32:23,156 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 513 [2021-06-14 09:32:23,393 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 516 [2021-06-14 09:32:23,828 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 913 DAG size of output: 757 [2021-06-14 09:32:24,392 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 938 DAG size of output: 782 [2021-06-14 09:32:25,174 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 453 DAG size of output: 397 [2021-06-14 09:32:25,348 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 432 [2021-06-14 09:32:25,593 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 497 DAG size of output: 439 [2021-06-14 09:32:26,248 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 414 DAG size of output: 387 [2021-06-14 09:32:26,890 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 392 [2021-06-14 09:32:27,158 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 718 DAG size of output: 687 [2021-06-14 09:32:27,502 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 720 [2021-06-14 09:32:27,915 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 760 DAG size of output: 727 [2021-06-14 09:32:28,625 WARN L205 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 1118 DAG size of output: 985 [2021-06-14 09:32:29,436 WARN L205 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 1140 DAG size of output: 1008 [2021-06-14 09:32:30,882 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1924 DAG size of output: 1536 [2021-06-14 09:32:31,899 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 483 [2021-06-14 09:32:32,100 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 549 DAG size of output: 486 [2021-06-14 09:32:32,868 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 347 [2021-06-14 09:32:33,241 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 711 [2021-06-14 09:32:33,689 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 893 DAG size of output: 737 [2021-06-14 09:32:34,380 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 367 [2021-06-14 09:32:34,526 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 402 [2021-06-14 09:32:34,704 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 470 DAG size of output: 408 [2021-06-14 09:32:36,034 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 691 DAG size of output: 657 [2021-06-14 09:32:36,325 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 690 [2021-06-14 09:32:36,684 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 732 DAG size of output: 696 [2021-06-14 09:32:37,292 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 1082 DAG size of output: 940 [2021-06-14 09:32:38,004 WARN L205 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 1105 DAG size of output: 964 [2021-06-14 09:32:39,270 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1864 DAG size of output: 1466 [2021-06-14 09:32:42,432 WARN L205 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 3619 DAG size of output: 2834 [2021-06-14 09:32:46,077 WARN L205 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 3664 DAG size of output: 2879 [2021-06-14 09:32:50,250 WARN L205 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-06-14 09:32:54,411 WARN L205 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 3688 DAG size of output: 2903 [2021-06-14 09:32:59,361 WARN L205 SmtUtils]: Spent 4.94 s on a formula simplification. DAG size of input: 3707 DAG size of output: 2922 [2021-06-14 09:33:03,983 WARN L205 SmtUtils]: Spent 4.60 s on a formula simplification. DAG size of input: 2924 DAG size of output: 2915 [2021-06-14 09:33:08,946 WARN L205 SmtUtils]: Spent 4.95 s on a formula simplification. DAG size of input: 2912 DAG size of output: 3217 [2021-06-14 09:33:16,668 WARN L205 SmtUtils]: Spent 7.71 s on a formula simplification. DAG size of input: 2696 DAG size of output: 3553 [2021-06-14 09:33:16,829 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 2516 [2021-06-14 09:33:17,867 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 278 [2021-06-14 09:33:19,698 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 2495 DAG size of output: 2494 [2021-06-14 09:33:25,961 WARN L205 SmtUtils]: Spent 6.25 s on a formula simplification. DAG size of input: 2493 DAG size of output: 3700 [2021-06-14 09:33:26,253 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 2169 DAG size of output: 2169 [2021-06-14 09:33:26,527 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 2126 DAG size of output: 2126 [2021-06-14 09:33:27,460 WARN L205 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 977 [2021-06-14 09:33:29,179 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 257 [2021-06-14 09:33:29,393 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 340 [2021-06-14 09:33:29,687 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 396 [2021-06-14 09:33:30,136 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 799 DAG size of output: 592 [2021-06-14 09:33:31,047 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 243 [2021-06-14 09:33:31,372 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 265 [2021-06-14 09:33:31,673 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 502 DAG size of output: 425 [2021-06-14 09:33:32,114 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 623 [2021-06-14 09:33:33,120 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 1090 DAG size of output: 844 [2021-06-14 09:33:34,379 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 322 [2021-06-14 09:33:34,652 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 350 [2021-06-14 09:33:35,551 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 285 [2021-06-14 09:33:35,787 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 430 DAG size of output: 391 [2021-06-14 09:33:36,095 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 449 [2021-06-14 09:33:36,978 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 238 [2021-06-14 09:33:37,174 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 360 [2021-06-14 09:33:37,432 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 461 DAG size of output: 396 [2021-06-14 09:33:37,759 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 455 [2021-06-14 09:33:38,464 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 659 [2021-06-14 09:33:39,387 WARN L205 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 827 DAG size of output: 710 [2021-06-14 09:33:40,210 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 245 [2021-06-14 09:33:40,380 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 305 [2021-06-14 09:33:40,601 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 409 [2021-06-14 09:33:40,935 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 526 DAG size of output: 472 [2021-06-14 09:33:41,877 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 221 [2021-06-14 09:33:42,021 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 275 [2021-06-14 09:33:42,224 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 432 DAG size of output: 374 [2021-06-14 09:33:42,491 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 490 DAG size of output: 411 [2021-06-14 09:33:42,834 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 475 [2021-06-14 09:33:43,539 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 831 DAG size of output: 714 [2021-06-14 09:33:45,298 WARN L205 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 1682 DAG size of output: 1237 [2021-06-14 09:33:48,169 WARN L205 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 2518 DAG size of output: 1697 [2021-06-14 09:33:51,492 WARN L205 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 2537 DAG size of output: 1736 [2021-06-14 09:33:55,781 WARN L205 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 2890 DAG size of output: 1831 [2021-06-14 09:33:56,834 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 700 DAG size of output: 1050 [2021-06-14 09:33:57,185 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 653 DAG size of output: 660 [2021-06-14 09:33:57,745 WARN L205 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 647 DAG size of output: 823 [2021-06-14 09:33:58,695 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 257 [2021-06-14 09:33:58,887 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 285 [2021-06-14 09:33:59,150 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 348 [2021-06-14 09:33:59,519 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 513 [2021-06-14 09:33:59,698 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 429 [2021-06-14 09:34:00,611 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 283 [2021-06-14 09:34:00,791 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 309 [2021-06-14 09:34:01,653 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 270 [2021-06-14 09:34:01,811 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 296 [2021-06-14 09:34:02,180 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 492 [2021-06-14 09:34:02,690 WARN L205 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 712 DAG size of output: 624 [2021-06-14 09:34:03,428 WARN L205 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 814 [2021-06-14 09:34:04,601 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 1338 DAG size of output: 1058 [2021-06-14 09:34:06,223 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 1723 DAG size of output: 1396 [2021-06-14 09:34:06,875 WARN L205 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 828 [2021-06-14 09:34:07,450 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 766 [2021-06-14 09:34:07,815 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 616 DAG size of output: 639 [2021-06-14 09:34:07,921 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 332 [2021-06-14 09:34:09,506 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 248 [2021-06-14 09:34:09,656 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 500 DAG size of output: 212 [2021-06-14 09:34:09,946 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 388 [2021-06-14 09:34:10,538 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 707 [2021-06-14 09:34:11,438 WARN L205 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 1357 DAG size of output: 863 [2021-06-14 09:34:12,745 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1729 DAG size of output: 1197 [2021-06-14 09:34:15,993 WARN L205 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 2363 DAG size of output: 1672 [2021-06-14 09:34:19,743 WARN L205 SmtUtils]: Spent 3.74 s on a formula simplification. DAG size of input: 2424 DAG size of output: 1716 [2021-06-14 09:34:25,132 WARN L205 SmtUtils]: Spent 5.38 s on a formula simplification. DAG size of input: 2831 DAG size of output: 1844 [2021-06-14 09:34:35,775 WARN L205 SmtUtils]: Spent 10.63 s on a formula simplification. DAG size of input: 5382 DAG size of output: 3237 [2021-06-14 09:34:36,980 WARN L205 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 707 DAG size of output: 1000 [2021-06-14 09:34:37,528 WARN L205 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 687 DAG size of output: 712 [2021-06-14 09:34:38,281 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 683 DAG size of output: 877 [2021-06-14 09:34:38,765 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 652 DAG size of output: 729 [2021-06-14 09:34:39,552 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 262 [2021-06-14 09:34:39,753 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 300 [2021-06-14 09:34:39,967 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 374 [2021-06-14 09:34:40,803 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 229 [2021-06-14 09:34:41,588 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 344 [2021-06-14 09:34:42,475 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 334 [2021-06-14 09:34:43,505 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 369 [2021-06-14 09:34:43,916 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 560 [2021-06-14 09:34:44,678 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 902 DAG size of output: 726 [2021-06-14 09:34:45,609 WARN L205 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 962 DAG size of output: 768 [2021-06-14 09:34:46,776 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 1071 DAG size of output: 879 [2021-06-14 09:34:48,018 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1304 DAG size of output: 904 [2021-06-14 09:34:49,835 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 1744 DAG size of output: 1304 [2021-06-14 09:34:52,326 WARN L205 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 2015 DAG size of output: 1655 [2021-06-14 09:34:53,124 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 879 [2021-06-14 09:34:53,477 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 490 [2021-06-14 09:34:53,758 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 440 DAG size of output: 491 [2021-06-14 09:34:54,929 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 260 [2021-06-14 09:34:55,780 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 289 [2021-06-14 09:34:56,049 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 462 DAG size of output: 317 [2021-06-14 09:34:56,425 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 433 [2021-06-14 09:34:57,115 WARN L205 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 666 [2021-06-14 09:34:58,123 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 945 DAG size of output: 803 [2021-06-14 09:34:58,295 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 354 [2021-06-14 09:34:58,942 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 338 [2021-06-14 09:34:59,119 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 377 [2021-06-14 09:34:59,385 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 515 DAG size of output: 443 [2021-06-14 09:35:00,599 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1314 DAG size of output: 1007 [2021-06-14 09:35:02,406 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1586 DAG size of output: 1355 [2021-06-14 09:35:07,116 WARN L205 SmtUtils]: Spent 4.70 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2064 [2021-06-14 09:35:13,556 WARN L205 SmtUtils]: Spent 6.43 s on a formula simplification. DAG size of input: 2989 DAG size of output: 2220 [2021-06-14 09:35:20,791 WARN L205 SmtUtils]: Spent 7.22 s on a formula simplification. DAG size of input: 3049 DAG size of output: 2305 [2021-06-14 09:35:21,432 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 573 [2021-06-14 09:35:22,117 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 296 [2021-06-14 09:35:22,276 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 358 [2021-06-14 09:35:22,968 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 451 [2021-06-14 09:35:23,861 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 215 [2021-06-14 09:35:24,012 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 254 [2021-06-14 09:35:24,234 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 348 [2021-06-14 09:35:24,520 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 399 [2021-06-14 09:35:24,884 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 482 DAG size of output: 425 [2021-06-14 09:35:25,336 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 485 [2021-06-14 09:35:25,865 WARN L205 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 521 [2021-06-14 09:35:27,085 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 328 [2021-06-14 09:35:27,332 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 369 [2021-06-14 09:35:27,647 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 394 [2021-06-14 09:35:28,101 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 469 DAG size of output: 433 [2021-06-14 09:35:28,613 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 517 [2021-06-14 09:35:29,242 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 580 [2021-06-14 09:35:30,516 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 978 DAG size of output: 863 [2021-06-14 09:35:31,375 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 202 [2021-06-14 09:35:31,529 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 256 [2021-06-14 09:35:31,774 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 425 DAG size of output: 384 [2021-06-14 09:35:32,093 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 484 DAG size of output: 442 [2021-06-14 09:35:32,276 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 292 [2021-06-14 09:35:32,894 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 328 [2021-06-14 09:35:33,109 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 391 [2021-06-14 09:35:33,392 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 496 DAG size of output: 450 [2021-06-14 09:35:34,067 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 639 [2021-06-14 09:35:35,115 WARN L205 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 800 DAG size of output: 715 [2021-06-14 09:35:37,514 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 1872 DAG size of output: 1482 [2021-06-14 09:35:40,635 WARN L205 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 2070 DAG size of output: 1568 [2021-06-14 09:35:40,771 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 361 [2021-06-14 09:35:41,349 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 344 [2021-06-14 09:35:41,531 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 367 [2021-06-14 09:35:42,099 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 246 [2021-06-14 09:35:42,435 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 486 [2021-06-14 09:35:43,403 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 243 [2021-06-14 09:35:43,546 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 266 [2021-06-14 09:35:43,733 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 324 [2021-06-14 09:35:44,014 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 525 DAG size of output: 457 [2021-06-14 09:35:44,404 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 599 [2021-06-14 09:35:45,220 WARN L205 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 817 [2021-06-14 09:35:46,357 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 1006 DAG size of output: 867 [2021-06-14 09:35:47,365 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 318 [2021-06-14 09:35:47,532 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 388 [2021-06-14 09:35:47,757 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 406 [2021-06-14 09:35:48,029 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 422 [2021-06-14 09:35:48,386 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 470 [2021-06-14 09:35:50,078 WARN L205 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1433 DAG size of output: 1082 [2021-06-14 09:35:55,078 WARN L205 SmtUtils]: Spent 4.99 s on a formula simplification. DAG size of input: 2994 DAG size of output: 2129 [2021-06-14 09:36:00,760 WARN L205 SmtUtils]: Spent 5.67 s on a formula simplification. DAG size of input: 3038 DAG size of output: 2179 [2021-06-14 09:36:14,781 WARN L205 SmtUtils]: Spent 14.00 s on a formula simplification. DAG size of input: 5719 DAG size of output: 3928 [2021-06-14 09:36:41,985 WARN L205 SmtUtils]: Spent 27.18 s on a formula simplification. DAG size of input: 8989 DAG size of output: 5710 [2021-06-14 09:36:42,994 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 434 DAG size of output: 329 [2021-06-14 09:36:43,173 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 340 [2021-06-14 09:37:13,470 WARN L205 SmtUtils]: Spent 30.28 s on a formula simplification. DAG size of input: 9287 DAG size of output: 5929 [2021-06-14 09:37:49,255 WARN L205 SmtUtils]: Spent 35.74 s on a formula simplification. DAG size of input: 10982 DAG size of output: 7649 [2021-06-14 09:37:50,288 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 295 [2021-06-14 09:37:50,476 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 410 [2021-06-14 09:37:50,710 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 540 DAG size of output: 416 [2021-06-14 09:38:27,481 WARN L205 SmtUtils]: Spent 36.75 s on a formula simplification. DAG size of input: 11394 DAG size of output: 7943 [2021-06-14 09:39:04,787 WARN L205 SmtUtils]: Spent 37.26 s on a formula simplification. DAG size of input: 11649 DAG size of output: 8097 [2021-06-14 09:39:49,004 WARN L205 SmtUtils]: Spent 44.17 s on a formula simplification. DAG size of input: 12976 DAG size of output: 9218 [2021-06-14 09:39:52,396 WARN L205 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 1243 DAG size of output: 1636 [2021-06-14 09:39:52,553 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 1238 [2021-06-14 09:39:53,917 WARN L205 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 1217 DAG size of output: 1216 [2021-06-14 09:39:54,525 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 240 [2021-06-14 09:39:57,334 WARN L205 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 1215 DAG size of output: 1779 [2021-06-14 09:39:57,480 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1093 DAG size of output: 1093 [2021-06-14 09:39:57,619 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1052 DAG size of output: 1052 [2021-06-14 09:39:58,668 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 686 DAG size of output: 991 [2021-06-14 09:39:59,337 WARN L205 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 682 DAG size of output: 739 [2021-06-14 09:40:00,237 WARN L205 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 766 [2021-06-14 09:40:00,967 WARN L205 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 791 [2021-06-14 09:40:01,300 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 441 [2021-06-14 09:40:01,996 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 258 [2021-06-14 09:40:02,175 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 291 [2021-06-14 09:40:02,578 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 348 [2021-06-14 09:40:02,919 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 453 [2021-06-14 09:40:03,320 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 603 DAG size of output: 477 [2021-06-14 09:40:04,823 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 543 DAG size of output: 417 [2021-06-14 09:40:05,127 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 435 [2021-06-14 09:40:05,924 WARN L205 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 758 [2021-06-14 09:40:06,925 WARN L205 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 1152 DAG size of output: 843 [2021-06-14 09:40:08,286 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1015 [2021-06-14 09:40:09,145 WARN L205 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 765 [2021-06-14 09:40:10,186 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 675 DAG size of output: 790 [2021-06-14 09:40:10,470 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 376 DAG size of output: 428 [2021-06-14 09:40:11,112 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 281 [2021-06-14 09:40:11,314 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 501 DAG size of output: 391 [2021-06-14 09:40:11,651 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 464 [2021-06-14 09:40:11,889 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 267 [2021-06-14 09:40:12,501 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 234 [2021-06-14 09:40:12,666 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 259 [2021-06-14 09:40:13,435 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 265 [2021-06-14 09:40:13,614 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 290 [2021-06-14 09:40:13,998 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 384 [2021-06-14 09:40:14,876 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 261 [2021-06-14 09:40:15,372 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 319 [2021-06-14 09:40:15,646 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 344 [2021-06-14 09:40:16,406 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 516 [2021-06-14 09:40:17,372 WARN L205 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 578 [2021-06-14 09:40:18,607 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 819 DAG size of output: 697 [2021-06-14 09:40:20,243 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1184 DAG size of output: 905 [2021-06-14 09:40:22,356 WARN L205 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 1312 DAG size of output: 996 [2021-06-14 09:40:24,966 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 1416 DAG size of output: 1170 [2021-06-14 09:40:29,344 WARN L205 SmtUtils]: Spent 4.37 s on a formula simplification. DAG size of input: 1833 DAG size of output: 1517 [2021-06-14 09:40:35,275 WARN L205 SmtUtils]: Spent 5.92 s on a formula simplification. DAG size of input: 2174 DAG size of output: 1614 [2021-06-14 09:40:35,666 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 546 [2021-06-14 09:40:35,855 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 391 [2021-06-14 09:40:36,058 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 417 [2021-06-14 09:40:36,393 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 455 [2021-06-14 09:40:37,860 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 216 [2021-06-14 09:40:38,029 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 246 [2021-06-14 09:40:38,267 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 330 [2021-06-14 09:40:38,641 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 656 DAG size of output: 454 [2021-06-14 09:40:39,154 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 836 DAG size of output: 572 [2021-06-14 09:40:39,278 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 304 [2021-06-14 09:40:39,437 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 323 [2021-06-14 09:40:40,626 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 162 [2021-06-14 09:40:40,782 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 291 DAG size of output: 220 [2021-06-14 09:40:40,982 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 247 [2021-06-14 09:40:41,268 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 486 DAG size of output: 336 [2021-06-14 09:40:41,627 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 404 [2021-06-14 09:40:42,180 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 290 [2021-06-14 09:40:42,755 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 847 DAG size of output: 578 [2021-06-14 09:40:43,944 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 933 DAG size of output: 641 [2021-06-14 09:40:45,331 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 960 DAG size of output: 668 [2021-06-14 09:40:47,204 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1138 DAG size of output: 701 [2021-06-14 09:40:47,435 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 487 [2021-06-14 09:40:47,677 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-06-14 09:40:47,845 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-06-14 09:40:48,019 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 362 [2021-06-14 09:40:49,107 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 219 [2021-06-14 09:40:49,297 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 243 [2021-06-14 09:40:49,544 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 341 [2021-06-14 09:40:49,883 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 613 DAG size of output: 403 [2021-06-14 09:40:50,345 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 476 [2021-06-14 09:40:50,519 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 380 [2021-06-14 09:40:50,697 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 398 [2021-06-14 09:40:51,758 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 313 [2021-06-14 09:40:51,927 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 422 DAG size of output: 333 [2021-06-14 09:40:52,180 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 513 DAG size of output: 401 [2021-06-14 09:40:52,555 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 606 DAG size of output: 471 [2021-06-14 09:40:53,496 WARN L205 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 837 DAG size of output: 632 [2021-06-14 09:40:54,755 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1009 DAG size of output: 667 [2021-06-14 09:40:57,893 WARN L205 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 1961 DAG size of output: 1076 [2021-06-14 09:41:06,988 WARN L205 SmtUtils]: Spent 9.09 s on a formula simplification. DAG size of input: 3390 DAG size of output: 2173 [2021-06-14 09:41:17,567 WARN L205 SmtUtils]: Spent 10.23 s on a formula simplification. DAG size of input: 3507 DAG size of output: 2263 [2021-06-14 09:41:29,746 WARN L205 SmtUtils]: Spent 12.16 s on a formula simplification. DAG size of input: 4235 DAG size of output: 2787 [2021-06-14 09:41:42,153 WARN L205 SmtUtils]: Spent 12.39 s on a formula simplification. DAG size of input: 4456 DAG size of output: 2926 [2021-06-14 09:41:54,762 WARN L205 SmtUtils]: Spent 12.59 s on a formula simplification. DAG size of input: 4635 DAG size of output: 3051 [2021-06-14 09:42:09,274 WARN L205 SmtUtils]: Spent 14.49 s on a formula simplification. DAG size of input: 5120 DAG size of output: 3306 [2021-06-14 09:43:09,562 WARN L205 SmtUtils]: Spent 1.00 m on a formula simplification. DAG size of input: 16679 DAG size of output: 11341 [2021-06-14 09:44:16,601 WARN L205 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 16692 DAG size of output: 11355 [2021-06-14 09:45:23,610 WARN L205 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 16692 DAG size of output: 11355 [2021-06-14 09:46:34,806 WARN L205 SmtUtils]: Spent 1.19 m on a formula simplification. DAG size of input: 16701 DAG size of output: 11364 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown