/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-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 23:44:21,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 23:44:21,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 23:44:21,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-16 23:44:21,494 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-NewStatesSleep-NoLbe-Random42.epf [2021-06-16 23:44:21,525 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 23:44:21,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 23:44:21,526 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 23:44:21,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 23:44:21,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 23:44:21,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 23:44:21,528 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 23:44:21,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 23:44:21,529 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 23:44:21,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 23:44:21,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 23:44:21,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 23:44:21,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 23:44:21,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 23:44:21,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 23:44:21,530 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 23:44:21,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 23:44:21,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 23:44:21,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 23:44:21,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 23:44:21,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 23:44:21,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 23:44:21,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 23:44:21,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 23:44:21,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 23:44:21,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 23:44:21,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 23:44:21,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 23:44:21,531 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-16 23:44:21,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 23:44:21,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 23:44:21,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 23:44:21,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 23:44:21,532 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 23:44:21,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-16 23:44:21,532 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 23:44:21,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 23:44:21,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 23:44:21,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 23:44:21,824 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 23:44:21,825 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 23:44:21,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-3.wvr.bpl [2021-06-16 23:44:21,826 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-3.wvr.bpl' [2021-06-16 23:44:21,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 23:44:21,848 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 23:44:21,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 23:44:21,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 23:44:21,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 23:44:21,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (1/1) ... [2021-06-16 23:44:21,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (1/1) ... [2021-06-16 23:44:21,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 23:44:21,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 23:44:21,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 23:44:21,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 23:44:21,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (1/1) ... [2021-06-16 23:44:21,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (1/1) ... [2021-06-16 23:44:21,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (1/1) ... [2021-06-16 23:44:21,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (1/1) ... [2021-06-16 23:44:21,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (1/1) ... [2021-06-16 23:44:21,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (1/1) ... [2021-06-16 23:44:21,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (1/1) ... [2021-06-16 23:44:21,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 23:44:21,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 23:44:21,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 23:44:21,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 23:44:21,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (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 [2021-06-16 23:44:21,959 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 23:44:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 23:44:21,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 23:44:21,960 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 23:44:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 23:44:21,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 23:44:21,960 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 23:44:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 23:44:21,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 23:44:21,961 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 23:44:22,299 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 23:44:22,299 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-06-16 23:44:22,300 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-06-16 23:44:22,300 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-06-16 23:44:22,301 INFO L202 PluginConnector]: Adding new model unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 11:44:22 BoogieIcfgContainer [2021-06-16 23:44:22,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 23:44:22,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 23:44:22,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 23:44:22,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 23:44:22,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 11:44:21" (1/2) ... [2021-06-16 23:44:22,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de380e4 and model type unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 11:44:22, skipping insertion in model container [2021-06-16 23:44:22,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 11:44:22" (2/2) ... [2021-06-16 23:44:22,307 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.bpl [2021-06-16 23:44:22,310 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 23:44:22,311 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 23:44:22,311 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 23:44:22,311 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 23:44:22,365 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-16 23:44:22,397 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 [2021-06-16 23:44:22,502 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 23:44:22,502 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 23:44:22,502 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 23:44:22,502 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 23:44:22,502 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 23:44:22,502 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 23:44:22,502 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 23:44:22,502 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 23:44:22,523 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:22,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:22,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1893131829, now seen corresponding path program 1 times [2021-06-16 23:44:22,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:22,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079035790] [2021-06-16 23:44:22,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:22,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:22,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079035790] [2021-06-16 23:44:22,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079035790] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 23:44:22,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 23:44:22,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-16 23:44:22,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75137603] [2021-06-16 23:44:22,661 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 23:44:22,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:22,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 23:44:22,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 23:44:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:22,682 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:22,684 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) [2021-06-16 23:44:22,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:22,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:22,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 23:44:22,707 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:22,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:22,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1419383770, now seen corresponding path program 1 times [2021-06-16 23:44:22,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:22,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99994950] [2021-06-16 23:44:22,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:22,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:22,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99994950] [2021-06-16 23:44:22,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99994950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 23:44:22,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 23:44:22,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 23:44:22,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537462302] [2021-06-16 23:44:22,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 23:44:22,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:22,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 23:44:22,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-16 23:44:22,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:22,741 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:22,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 23:44:22,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:22,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:22,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:22,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:22,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 23:44:22,769 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:22,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:22,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1483153780, now seen corresponding path program 1 times [2021-06-16 23:44:22,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:22,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638014899] [2021-06-16 23:44:22,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:22,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:22,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638014899] [2021-06-16 23:44:22,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638014899] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:22,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110619999] [2021-06-16 23:44:22,817 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 [2021-06-16 23:44:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:22,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-16 23:44:22,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:23,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:23,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110619999] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:23,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:44:23,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-06-16 23:44:23,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456562052] [2021-06-16 23:44:23,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-16 23:44:23,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:23,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-16 23:44:23,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-16 23:44:23,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:23,019 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:23,019 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-06-16 23:44:23,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:23,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 23:44:23,284 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:23,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:23,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1301983224, now seen corresponding path program 2 times [2021-06-16 23:44:23,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:23,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833264245] [2021-06-16 23:44:23,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:23,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-16 23:44:23,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:23,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833264245] [2021-06-16 23:44:23,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833264245] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:23,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936996579] [2021-06-16 23:44:23,323 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 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 [2021-06-16 23:44:23,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 23:44:23,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 23:44:23,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 23:44:23,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:23,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936996579] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:23,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:44:23,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-06-16 23:44:23,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911532325] [2021-06-16 23:44:23,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 23:44:23,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:23,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 23:44:23,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-06-16 23:44:23,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:23,416 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:23,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 23:44:23,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:23,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:23,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:23,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:23,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 23:44:23,663 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:23,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:23,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1741884428, now seen corresponding path program 3 times [2021-06-16 23:44:23,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:23,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546055058] [2021-06-16 23:44:23,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:23,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:23,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546055058] [2021-06-16 23:44:23,733 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546055058] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:23,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077192343] [2021-06-16 23:44:23,733 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 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 [2021-06-16 23:44:23,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-16 23:44:23,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 23:44:23,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-16 23:44:23,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:23,840 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 23:44:23,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-06-16 23:44:23,858 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 23:44:23,859 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 23:44:23,860 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-16 23:44:23,860 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2021-06-16 23:44:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:23,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077192343] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:23,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:44:23,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2021-06-16 23:44:23,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608780928] [2021-06-16 23:44:23,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 23:44:23,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:23,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 23:44:23,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-06-16 23:44:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:23,868 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:23,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 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) [2021-06-16 23:44:23,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:23,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:23,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 23:44:24,101 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:24,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:24,102 INFO L82 PathProgramCache]: Analyzing trace with hash -2010374999, now seen corresponding path program 4 times [2021-06-16 23:44:24,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:24,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189996737] [2021-06-16 23:44:24,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:24,183 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:24,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:24,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189996737] [2021-06-16 23:44:24,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189996737] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:24,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139304563] [2021-06-16 23:44:24,184 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 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 [2021-06-16 23:44:24,241 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-16 23:44:24,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 23:44:24,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 23:44:24,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:24,336 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:24,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139304563] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:24,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:44:24,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-16 23:44:24,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797623733] [2021-06-16 23:44:24,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-16 23:44:24,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:24,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-16 23:44:24,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-16 23:44:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:24,339 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:24,339 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 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) [2021-06-16 23:44:24,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:24,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:24,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:24,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:24,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:24,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:24,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 23:44:24,630 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:24,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:24,631 INFO L82 PathProgramCache]: Analyzing trace with hash -358615575, now seen corresponding path program 5 times [2021-06-16 23:44:24,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:24,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796689759] [2021-06-16 23:44:24,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-16 23:44:24,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:24,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796689759] [2021-06-16 23:44:24,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796689759] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:24,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910369742] [2021-06-16 23:44:24,688 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 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 [2021-06-16 23:44:24,748 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-16 23:44:24,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 23:44:24,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 14 conjunts are in the unsatisfiable core [2021-06-16 23:44:24,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:24,825 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-16 23:44:24,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910369742] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:24,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:44:24,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-16 23:44:24,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566970402] [2021-06-16 23:44:24,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-16 23:44:24,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:24,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-16 23:44:24,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-16 23:44:24,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:24,827 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:24,827 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) [2021-06-16 23:44:24,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:24,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:24,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:24,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:24,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:24,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 23:44:25,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 23:44:25,154 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:25,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:25,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1732708915, now seen corresponding path program 6 times [2021-06-16 23:44:25,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:25,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275532603] [2021-06-16 23:44:25,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:25,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:25,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275532603] [2021-06-16 23:44:25,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275532603] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:25,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706608544] [2021-06-16 23:44:25,203 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 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 [2021-06-16 23:44:25,291 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-16 23:44:25,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 23:44:25,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-16 23:44:25,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:25,464 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 23:44:25,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2021-06-16 23:44:25,760 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 23:44:25,764 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 23:44:25,764 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-16 23:44:25,764 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-06-16 23:44:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:25,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706608544] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:25,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:44:25,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 16 [2021-06-16 23:44:25,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548432969] [2021-06-16 23:44:25,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-16 23:44:25,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:25,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-16 23:44:25,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-06-16 23:44:25,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:25,771 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:25,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 16 states have internal predecessors, (29), 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) [2021-06-16 23:44:25,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:25,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:25,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:25,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:25,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:25,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:25,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 23:44:25,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-16 23:44:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:44:26,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-16 23:44:26,028 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:26,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:26,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2104021096, now seen corresponding path program 7 times [2021-06-16 23:44:26,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:26,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876392900] [2021-06-16 23:44:26,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:26,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:26,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876392900] [2021-06-16 23:44:26,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876392900] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:26,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569961278] [2021-06-16 23:44:26,152 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-06-16 23:44:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 23:44:26,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 23:44:26,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:26,335 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:26,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569961278] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:26,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:44:26,335 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-06-16 23:44:26,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320809257] [2021-06-16 23:44:26,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-16 23:44:26,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:26,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-16 23:44:26,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-06-16 23:44:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:26,336 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:26,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 15 states have internal predecessors, (26), 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) [2021-06-16 23:44:26,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:26,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:26,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:26,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:26,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:26,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:26,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-16 23:44:26,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:44:26,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:26,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:44:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:44:26,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:44:26,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-06-16 23:44:26,665 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:26,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:26,666 INFO L82 PathProgramCache]: Analyzing trace with hash -364885484, now seen corresponding path program 8 times [2021-06-16 23:44:26,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:26,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756015316] [2021-06-16 23:44:26,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:26,772 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:26,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:26,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756015316] [2021-06-16 23:44:26,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756015316] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:26,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193974262] [2021-06-16 23:44:26,773 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 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 [2021-06-16 23:44:26,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 23:44:26,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 23:44:26,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-16 23:44:26,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:27,147 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-06-16 23:44:27,148 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 23:44:27,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 43 treesize of output 319 [2021-06-16 23:44:28,030 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 278 [2021-06-16 23:44:28,207 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 285 [2021-06-16 23:44:28,357 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 285 [2021-06-16 23:44:28,565 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 295 [2021-06-16 23:44:28,724 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 264 [2021-06-16 23:44:28,851 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 283 [2021-06-16 23:44:29,095 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 279 [2021-06-16 23:44:29,771 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 234 [2021-06-16 23:44:30,029 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 241 [2021-06-16 23:44:30,199 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 293 [2021-06-16 23:44:31,970 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 241 [2021-06-16 23:44:32,149 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 522 DAG size of output: 273 [2021-06-16 23:44:32,319 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 522 DAG size of output: 273 [2021-06-16 23:44:32,485 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 525 DAG size of output: 279 [2021-06-16 23:44:32,676 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 270 [2021-06-16 23:44:33,541 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 481 DAG size of output: 268 [2021-06-16 23:44:33,672 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 276 [2021-06-16 23:44:33,808 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 276 [2021-06-16 23:44:33,952 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 495 DAG size of output: 280 [2021-06-16 23:44:34,378 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 23:44:34,379 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 23:44:34,380 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-16 23:44:34,380 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:3 [2021-06-16 23:44:34,386 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:34,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193974262] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:34,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:44:34,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 23 [2021-06-16 23:44:34,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221369481] [2021-06-16 23:44:34,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-16 23:44:34,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:34,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-16 23:44:34,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-06-16 23:44:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:34,389 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:34,389 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 23 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) [2021-06-16 23:44:34,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:34,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:34,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:34,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:34,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:34,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:34,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:44:34,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:44:34,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:44:34,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:44:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:44:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:44:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 23:44:34,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 23:44:34,671 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:34,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:34,672 INFO L82 PathProgramCache]: Analyzing trace with hash -252056119, now seen corresponding path program 9 times [2021-06-16 23:44:34,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:34,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262249900] [2021-06-16 23:44:34,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:34,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:34,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262249900] [2021-06-16 23:44:34,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262249900] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:34,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956814610] [2021-06-16 23:44:34,796 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 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 [2021-06-16 23:44:34,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-06-16 23:44:34,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 23:44:34,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-16 23:44:34,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:34,909 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:34,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956814610] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:34,910 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:44:34,910 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 20 [2021-06-16 23:44:34,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379177815] [2021-06-16 23:44:34,910 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-16 23:44:34,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:34,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-16 23:44:34,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2021-06-16 23:44:34,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:34,911 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:34,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 23:44:34,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:35,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:35,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:35,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:35,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:35,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:35,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:35,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:44:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:44:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:44:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 23:44:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 23:44:35,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable686 [2021-06-16 23:44:35,277 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:35,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:35,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1463680777, now seen corresponding path program 10 times [2021-06-16 23:44:35,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:35,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585943024] [2021-06-16 23:44:35,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:35,415 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-16 23:44:35,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:35,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585943024] [2021-06-16 23:44:35,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585943024] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:35,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367541019] [2021-06-16 23:44:35,416 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 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 [2021-06-16 23:44:35,444 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-16 23:44:35,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 23:44:35,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-16 23:44:35,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:35,610 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-06-16 23:44:35,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367541019] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:35,610 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:44:35,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-06-16 23:44:35,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877291791] [2021-06-16 23:44:35,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-16 23:44:35,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:44:35,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-16 23:44:35,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-06-16 23:44:35,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:35,611 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:44:35,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.32) internal successors, (33), 24 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) [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-16 23:44:35,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 23:44:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-16 23:44:36,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable687 [2021-06-16 23:44:36,282 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:44:36,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:44:36,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1905646317, now seen corresponding path program 11 times [2021-06-16 23:44:36,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:44:36,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123752418] [2021-06-16 23:44:36,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:44:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:44:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:44:36,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:44:36,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123752418] [2021-06-16 23:44:36,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123752418] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:44:36,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237239936] [2021-06-16 23:44:36,404 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 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 [2021-06-16 23:44:36,435 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-06-16 23:44:36,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 23:44:36,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 39 conjunts are in the unsatisfiable core [2021-06-16 23:44:36,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:44:37,137 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-06-16 23:44:37,137 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 23:44:37,137 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 [2021-06-16 23:44:38,209 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 259 [2021-06-16 23:44:38,440 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 553 DAG size of output: 343 [2021-06-16 23:44:38,649 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 582 DAG size of output: 372 [2021-06-16 23:44:39,838 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 337 [2021-06-16 23:44:40,038 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 364 [2021-06-16 23:44:40,545 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 1033 DAG size of output: 619 [2021-06-16 23:44:41,090 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 1043 DAG size of output: 624 [2021-06-16 23:44:42,445 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 529 DAG size of output: 527 [2021-06-16 23:44:43,294 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 511 DAG size of output: 314 [2021-06-16 23:44:43,713 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 945 DAG size of output: 745 [2021-06-16 23:44:44,198 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 969 DAG size of output: 769 [2021-06-16 23:44:45,099 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 519 DAG size of output: 322 [2021-06-16 23:44:46,499 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 538 DAG size of output: 534 [2021-06-16 23:44:46,916 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 752 [2021-06-16 23:44:47,433 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 980 DAG size of output: 778 [2021-06-16 23:44:48,612 WARN L205 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 1815 DAG size of output: 1411 [2021-06-16 23:44:49,935 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1825 DAG size of output: 1419 [2021-06-16 23:44:52,472 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 2733 DAG size of output: 1906 [2021-06-16 23:44:55,067 WARN L205 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 2763 DAG size of output: 1936 [2021-06-16 23:44:58,072 WARN L205 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 2790 DAG size of output: 1963 [2021-06-16 23:45:01,746 WARN L205 SmtUtils]: Spent 3.66 s on a formula simplification. DAG size of input: 2801 DAG size of output: 1974 [2021-06-16 23:45:06,092 WARN L205 SmtUtils]: Spent 4.33 s on a formula simplification. DAG size of input: 2827 DAG size of output: 1998 [2021-06-16 23:45:10,513 WARN L205 SmtUtils]: Spent 4.40 s on a formula simplification. DAG size of input: 2827 DAG size of output: 1998 [2021-06-16 23:45:15,310 WARN L205 SmtUtils]: Spent 4.79 s on a formula simplification. DAG size of input: 2840 DAG size of output: 2011 [2021-06-16 23:45:16,626 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 2013 DAG size of output: 2150 [2021-06-16 23:45:20,444 WARN L205 SmtUtils]: Spent 3.80 s on a formula simplification. DAG size of input: 2008 DAG size of output: 2005 [2021-06-16 23:45:23,108 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 2002 DAG size of output: 2347 [2021-06-16 23:45:28,518 WARN L205 SmtUtils]: Spent 5.39 s on a formula simplification. DAG size of input: 1999 DAG size of output: 2441 [2021-06-16 23:45:30,101 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1995 DAG size of output: 2001 [2021-06-16 23:45:33,707 WARN L205 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 1992 DAG size of output: 2011 [2021-06-16 23:45:34,080 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 1989 DAG size of output: 1989 [2021-06-16 23:45:34,225 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 1984 [2021-06-16 23:45:34,516 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 1962 DAG size of output: 1962 [2021-06-16 23:45:38,609 WARN L205 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 1953 DAG size of output: 2305 [2021-06-16 23:45:38,767 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1076 DAG size of output: 1076 [2021-06-16 23:45:38,908 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 1053 DAG size of output: 1053 [2021-06-16 23:45:39,137 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1031 DAG size of output: 1031 [2021-06-16 23:45:41,436 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 1409 DAG size of output: 575 [2021-06-16 23:45:42,056 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 1420 DAG size of output: 584 [2021-06-16 23:45:43,166 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 1603 DAG size of output: 662 [2021-06-16 23:45:43,867 WARN L205 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 1620 DAG size of output: 679 [2021-06-16 23:45:44,730 WARN L205 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 1680 DAG size of output: 746 [2021-06-16 23:45:45,822 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1709 DAG size of output: 769 [2021-06-16 23:45:48,009 WARN L205 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 2355 DAG size of output: 1207 [2021-06-16 23:45:51,166 WARN L205 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 2852 DAG size of output: 1424 [2021-06-16 23:45:54,386 WARN L205 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 2858 DAG size of output: 1428 [2021-06-16 23:45:58,180 WARN L205 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 3044 DAG size of output: 1578 [2021-06-16 23:46:01,825 WARN L205 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 3044 DAG size of output: 1578 [2021-06-16 23:46:06,115 WARN L205 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 3055 DAG size of output: 1590 [2021-06-16 23:46:06,271 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 1583 [2021-06-16 23:46:09,880 WARN L205 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 1585 DAG size of output: 1658 [2021-06-16 23:46:13,416 WARN L205 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 1565 DAG size of output: 1614 [2021-06-16 23:46:13,885 WARN L205 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 1531 DAG size of output: 1526 [2021-06-16 23:46:16,403 WARN L205 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 1390 DAG size of output: 1324 [2021-06-16 23:46:18,744 WARN L205 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 1321 DAG size of output: 1007 [2021-06-16 23:46:19,115 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 269 [2021-06-16 23:46:20,242 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 234 [2021-06-16 23:46:20,575 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 377 [2021-06-16 23:46:20,813 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 400 [2021-06-16 23:46:21,009 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 327 [2021-06-16 23:46:21,684 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 288 [2021-06-16 23:46:22,635 WARN L205 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 1111 DAG size of output: 701 [2021-06-16 23:46:23,615 WARN L205 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 1123 DAG size of output: 715 [2021-06-16 23:46:24,297 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 232 [2021-06-16 23:46:24,476 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 273 [2021-06-16 23:46:24,736 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 240 [2021-06-16 23:46:25,121 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 216 [2021-06-16 23:46:25,527 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 219 [2021-06-16 23:46:25,771 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 234 [2021-06-16 23:46:25,962 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 237 [2021-06-16 23:46:26,266 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-06-16 23:46:26,877 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 398 [2021-06-16 23:46:27,279 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 398 [2021-06-16 23:46:27,933 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 694 DAG size of output: 545 [2021-06-16 23:46:29,693 WARN L205 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1691 DAG size of output: 1148 [2021-06-16 23:46:32,086 WARN L205 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 1798 DAG size of output: 1244 [2021-06-16 23:46:34,693 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 1926 DAG size of output: 1352 [2021-06-16 23:46:37,430 WARN L205 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 1926 DAG size of output: 1352 [2021-06-16 23:46:41,881 WARN L205 SmtUtils]: Spent 4.44 s on a formula simplification. DAG size of input: 1937 DAG size of output: 1305 [2021-06-16 23:46:43,525 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1223 DAG size of output: 1120 [2021-06-16 23:46:45,459 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 1012 DAG size of output: 906 [2021-06-16 23:46:46,215 WARN L205 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 899 DAG size of output: 860 [2021-06-16 23:46:47,657 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 763 DAG size of output: 845 [2021-06-16 23:46:47,964 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 202 [2021-06-16 23:46:48,597 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 253 [2021-06-16 23:46:48,868 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 250 [2021-06-16 23:46:49,283 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 193 [2021-06-16 23:46:49,470 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2021-06-16 23:46:50,081 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 154 [2021-06-16 23:46:50,419 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 228 [2021-06-16 23:46:50,623 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 284 [2021-06-16 23:46:50,904 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 649 DAG size of output: 328 [2021-06-16 23:46:51,015 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 227 [2021-06-16 23:46:51,661 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 159 [2021-06-16 23:46:51,818 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 164 [2021-06-16 23:46:52,088 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 282 [2021-06-16 23:46:52,818 WARN L205 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 858 DAG size of output: 535 [2021-06-16 23:46:53,570 WARN L205 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 866 DAG size of output: 542 [2021-06-16 23:46:53,766 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 279 [2021-06-16 23:46:55,523 WARN L205 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 1020 DAG size of output: 630 [2021-06-16 23:46:57,048 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1153 DAG size of output: 730 [2021-06-16 23:46:58,410 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1153 DAG size of output: 730 [2021-06-16 23:46:59,886 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1155 DAG size of output: 732 [2021-06-16 23:47:01,372 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 729 DAG size of output: 729 [2021-06-16 23:47:01,791 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 439 DAG size of output: 292 [2021-06-16 23:47:01,898 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 186 [2021-06-16 23:47:02,735 WARN L205 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 420 [2021-06-16 23:47:02,930 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 258 [2021-06-16 23:47:03,050 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 233 [2021-06-16 23:47:04,327 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 186 [2021-06-16 23:47:04,510 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 593 DAG size of output: 281 [2021-06-16 23:47:04,695 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 593 DAG size of output: 281 [2021-06-16 23:47:05,061 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 598 DAG size of output: 346 [2021-06-16 23:47:05,524 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 225 [2021-06-16 23:47:05,642 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 229 [2021-06-16 23:47:06,124 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 187 [2021-06-16 23:47:06,316 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 198 [2021-06-16 23:47:06,525 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 286 [2021-06-16 23:47:06,756 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 438 DAG size of output: 286 [2021-06-16 23:47:07,024 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 292 [2021-06-16 23:47:07,320 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 334 [2021-06-16 23:47:07,542 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 343 [2021-06-16 23:47:07,762 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 318 [2021-06-16 23:47:07,923 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 266 [2021-06-16 23:47:08,056 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 249 [2021-06-16 23:47:08,569 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 423 DAG size of output: 239 [2021-06-16 23:47:08,676 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 423 DAG size of output: 239 [2021-06-16 23:47:08,795 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 425 DAG size of output: 239 [2021-06-16 23:47:08,916 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 257 [2021-06-16 23:47:09,120 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 23:47:09,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 23:47:09,122 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-16 23:47:09,122 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:3 [2021-06-16 23:47:09,127 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:47:09,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237239936] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:47:09,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:47:09,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18] total 30 [2021-06-16 23:47:09,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121916557] [2021-06-16 23:47:09,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-16 23:47:09,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:47:09,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-16 23:47:09,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=855, Unknown=0, NotChecked=0, Total=930 [2021-06-16 23:47:09,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:47:09,129 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:47:09,130 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 30 states have internal predecessors, (45), 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) [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-16 23:47:09,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 23:47:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-16 23:47:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 23:47:09,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable688 [2021-06-16 23:47:09,463 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:47:09,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:47:09,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1819220408, now seen corresponding path program 12 times [2021-06-16 23:47:09,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:47:09,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512686640] [2021-06-16 23:47:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:47:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:47:09,644 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 6 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:47:09,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:47:09,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512686640] [2021-06-16 23:47:09,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512686640] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:47:09,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319213886] [2021-06-16 23:47:09,645 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 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 [2021-06-16 23:47:09,683 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-16 23:47:09,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 23:47:09,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-16 23:47:09,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:47:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 10 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:47:09,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319213886] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:47:09,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 23:47:09,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 25 [2021-06-16 23:47:09,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173510222] [2021-06-16 23:47:09,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-16 23:47:09,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 23:47:09,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-16 23:47:09,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2021-06-16 23:47:09,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:47:09,803 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 23:47:09,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 25 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-16 23:47:09,804 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 23:47:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 23:47:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 23:47:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-16 23:47:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 23:47:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 23:47:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 23:47:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-16 23:47:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-16 23:47:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-16 23:47:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-16 23:47:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-16 23:47:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-16 23:47:10,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3716 [2021-06-16 23:47:10,348 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:47:10,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:47:10,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1292494900, now seen corresponding path program 13 times [2021-06-16 23:47:10,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:47:10,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233978356] [2021-06-16 23:47:10,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:47:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:47:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 23:47:10,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 23:47:10,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233978356] [2021-06-16 23:47:10,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233978356] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 23:47:10,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897694147] [2021-06-16 23:47:10,543 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 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 [2021-06-16 23:47:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 23:47:10,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-16 23:47:10,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 23:47:11,911 WARN L205 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2021-06-16 23:47:11,911 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 23:47:11,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 29 new quantified variables, introduced 105 case distinctions, treesize of input 67 treesize of output 889 [2021-06-16 23:47:13,539 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 253 [2021-06-16 23:47:13,756 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 301 [2021-06-16 23:47:13,985 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 336 [2021-06-16 23:47:15,592 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 298 [2021-06-16 23:47:15,837 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 331 [2021-06-16 23:47:16,347 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 469 [2021-06-16 23:47:17,290 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 292 [2021-06-16 23:47:18,044 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 234 [2021-06-16 23:47:18,415 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 369 [2021-06-16 23:47:18,740 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 443 DAG size of output: 397 [2021-06-16 23:47:20,645 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 301 [2021-06-16 23:47:20,929 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 371 [2021-06-16 23:47:21,392 WARN L205 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 401 [2021-06-16 23:47:22,211 WARN L205 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 665 DAG size of output: 573 [2021-06-16 23:47:23,702 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1029 DAG size of output: 813 [2021-06-16 23:47:25,380 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 1064 DAG size of output: 848 [2021-06-16 23:47:27,080 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 312 [2021-06-16 23:47:27,326 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 345 [2021-06-16 23:47:29,141 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 309 [2021-06-16 23:47:29,457 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 393 [2021-06-16 23:47:29,848 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 421 [2021-06-16 23:47:30,548 WARN L205 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 554 [2021-06-16 23:47:31,245 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 246 [2021-06-16 23:47:32,083 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 297 [2021-06-16 23:47:32,321 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 363 [2021-06-16 23:47:32,623 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 426 DAG size of output: 407 [2021-06-16 23:47:34,046 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 248 [2021-06-16 23:47:34,166 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 278 [2021-06-16 23:47:34,428 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 344 [2021-06-16 23:47:34,761 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 426 DAG size of output: 388 [2021-06-16 23:47:35,547 WARN L205 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 628 DAG size of output: 563 [2021-06-16 23:47:37,272 WARN L205 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 1039 DAG size of output: 880 [2021-06-16 23:47:40,840 WARN L205 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 1848 DAG size of output: 1480 [2021-06-16 23:47:45,078 WARN L205 SmtUtils]: Spent 4.23 s on a formula simplification. DAG size of input: 1883 DAG size of output: 1513 [2021-06-16 23:47:50,033 WARN L205 SmtUtils]: Spent 4.94 s on a formula simplification. DAG size of input: 1917 DAG size of output: 1547 [2021-06-16 23:47:51,583 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 312 [2021-06-16 23:47:51,825 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 341 [2021-06-16 23:47:53,334 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 266 [2021-06-16 23:47:53,739 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 466 DAG size of output: 421 [2021-06-16 23:47:55,005 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 300 [2021-06-16 23:47:55,181 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 346 [2021-06-16 23:47:56,509 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 264 [2021-06-16 23:47:56,720 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 310 [2021-06-16 23:47:57,191 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 483 DAG size of output: 444 [2021-06-16 23:47:58,081 WARN L205 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 753 DAG size of output: 651 [2021-06-16 23:47:59,374 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 220 [2021-06-16 23:47:59,491 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 256 [2021-06-16 23:48:00,840 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 251 [2021-06-16 23:48:01,110 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 337 [2021-06-16 23:48:02,563 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 291 [2021-06-16 23:48:02,763 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 322 [2021-06-16 23:48:04,091 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 286 [2021-06-16 23:48:04,271 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 315 [2021-06-16 23:48:04,692 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 498 DAG size of output: 439 [2021-06-16 23:48:05,468 WARN L205 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 725 DAG size of output: 571 [2021-06-16 23:48:06,461 WARN L205 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 763 DAG size of output: 609 [2021-06-16 23:48:08,659 WARN L205 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 1284 DAG size of output: 971 [2021-06-16 23:48:11,029 WARN L205 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 1320 DAG size of output: 1005 [2021-06-16 23:48:13,707 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 1357 DAG size of output: 1042 [2021-06-16 23:48:22,529 WARN L205 SmtUtils]: Spent 8.81 s on a formula simplification. DAG size of input: 2959 DAG size of output: 2238 [2021-06-16 23:48:33,406 WARN L205 SmtUtils]: Spent 10.85 s on a formula simplification. DAG size of input: 2993 DAG size of output: 2270 [2021-06-16 23:48:44,371 WARN L205 SmtUtils]: Spent 10.94 s on a formula simplification. DAG size of input: 3024 DAG size of output: 2299 [2021-06-16 23:48:56,534 WARN L205 SmtUtils]: Spent 12.15 s on a formula simplification. DAG size of input: 3054 DAG size of output: 2327 [2021-06-16 23:49:08,555 WARN L205 SmtUtils]: Spent 12.00 s on a formula simplification. DAG size of input: 3054 DAG size of output: 2327 [2021-06-16 23:49:23,434 WARN L205 SmtUtils]: Spent 14.87 s on a formula simplification. DAG size of input: 3079 DAG size of output: 2352 [2021-06-16 23:49:38,037 WARN L205 SmtUtils]: Spent 14.58 s on a formula simplification. DAG size of input: 2354 DAG size of output: 2363 [2021-06-16 23:50:19,869 WARN L205 SmtUtils]: Spent 41.79 s on a formula simplification. DAG size of input: 2345 DAG size of output: 3486 [2021-06-16 23:50:43,966 WARN L205 SmtUtils]: Spent 24.07 s on a formula simplification. DAG size of input: 2122 DAG size of output: 3082 [2021-06-16 23:51:07,276 WARN L205 SmtUtils]: Spent 23.27 s on a formula simplification. DAG size of input: 2118 DAG size of output: 3300 [2021-06-16 23:51:26,741 WARN L205 SmtUtils]: Spent 19.45 s on a formula simplification. DAG size of input: 2112 DAG size of output: 2949 [2021-06-16 23:51:27,107 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 2104 [2021-06-16 23:51:57,841 WARN L205 SmtUtils]: Spent 30.72 s on a formula simplification. DAG size of input: 2076 DAG size of output: 2858 [2021-06-16 23:52:16,126 WARN L205 SmtUtils]: Spent 18.27 s on a formula simplification. DAG size of input: 1979 DAG size of output: 2740 [2021-06-16 23:52:33,189 WARN L205 SmtUtils]: Spent 17.05 s on a formula simplification. DAG size of input: 1958 DAG size of output: 2444 [2021-06-16 23:52:50,213 WARN L205 SmtUtils]: Spent 17.01 s on a formula simplification. DAG size of input: 1938 DAG size of output: 2763 [2021-06-16 23:52:58,268 WARN L205 SmtUtils]: Spent 8.04 s on a formula simplification. DAG size of input: 1930 DAG size of output: 1839 [2021-06-16 23:52:58,874 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 1812 [2021-06-16 23:52:59,529 WARN L205 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 1782 DAG size of output: 1782 [2021-06-16 23:52:59,931 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 1268 DAG size of output: 1268 [2021-06-16 23:53:06,112 WARN L205 SmtUtils]: Spent 5.93 s on a formula simplification. DAG size of input: 1237 DAG size of output: 2125 [2021-06-16 23:53:06,708 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 1231 DAG size of output: 1231 [2021-06-16 23:53:12,835 WARN L205 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 1203 DAG size of output: 2086 [2021-06-16 23:53:18,350 WARN L205 SmtUtils]: Spent 5.50 s on a formula simplification. DAG size of input: 1198 DAG size of output: 1515 [2021-06-16 23:53:24,745 WARN L205 SmtUtils]: Spent 6.38 s on a formula simplification. DAG size of input: 1194 DAG size of output: 1508 [2021-06-16 23:53:25,130 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 1002 DAG size of output: 1002 [2021-06-16 23:53:26,440 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 622 DAG size of output: 710 [2021-06-16 23:53:28,111 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 620 DAG size of output: 971 [2021-06-16 23:53:29,758 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 619 DAG size of output: 814 [2021-06-16 23:53:29,968 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 614 [2021-06-16 23:53:31,421 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 414 DAG size of output: 318 [2021-06-16 23:53:32,332 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 261 [2021-06-16 23:53:33,058 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 281 [2021-06-16 23:53:33,416 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 454 DAG size of output: 374 [2021-06-16 23:53:34,041 WARN L205 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 715 DAG size of output: 519 [2021-06-16 23:53:34,939 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 250 [2021-06-16 23:53:35,076 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 255 [2021-06-16 23:53:36,031 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 424 DAG size of output: 321 [2021-06-16 23:53:36,155 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 420 [2021-06-16 23:53:37,138 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 226 [2021-06-16 23:53:37,291 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 263 [2021-06-16 23:53:38,119 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 244 [2021-06-16 23:53:38,267 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 282 [2021-06-16 23:53:38,665 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 376 [2021-06-16 23:53:39,376 WARN L205 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 733 DAG size of output: 524 [2021-06-16 23:53:40,864 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 997 DAG size of output: 720 [2021-06-16 23:53:41,578 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 347 DAG size of output: 435 [2021-06-16 23:53:42,913 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 312 [2021-06-16 23:53:44,296 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 258 [2021-06-16 23:53:44,428 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 263 [2021-06-16 23:53:44,693 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 323 [2021-06-16 23:53:45,185 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 541 DAG size of output: 425 [2021-06-16 23:53:45,547 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 303 [2021-06-16 23:53:46,901 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 225 [2021-06-16 23:53:47,102 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 294 [2021-06-16 23:53:47,432 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 332 [2021-06-16 23:53:48,714 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 272 [2021-06-16 23:53:48,948 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 311 [2021-06-16 23:53:49,530 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 464 [2021-06-16 23:53:50,777 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 959 DAG size of output: 697 [2021-06-16 23:53:53,741 WARN L205 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 1720 DAG size of output: 1194 [2021-06-16 23:53:53,912 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 606 DAG size of output: 606 [2021-06-16 23:53:54,340 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 349 [2021-06-16 23:53:55,696 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 312 [2021-06-16 23:53:55,993 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 316 [2021-06-16 23:53:56,783 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 252 [2021-06-16 23:53:57,473 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 317 [2021-06-16 23:53:57,894 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 590 DAG size of output: 470 [2021-06-16 23:53:58,510 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 596 DAG size of output: 477 [2021-06-16 23:53:59,607 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 234 [2021-06-16 23:53:59,755 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 288 [2021-06-16 23:54:00,621 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 314 [2021-06-16 23:54:00,884 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 319 [2021-06-16 23:54:01,754 WARN L205 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 832 DAG size of output: 587 [2021-06-16 23:54:02,744 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 221 [2021-06-16 23:54:03,435 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 291 [2021-06-16 23:54:03,564 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 267 [2021-06-16 23:54:03,686 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 239 [2021-06-16 23:54:04,431 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 250 [2021-06-16 23:54:05,220 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 333 [2021-06-16 23:54:05,703 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 512 DAG size of output: 436 [2021-06-16 23:54:06,285 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 536 DAG size of output: 460 [2021-06-16 23:54:06,524 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 253 [2021-06-16 23:54:07,293 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 229 [2021-06-16 23:54:08,057 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 248 [2021-06-16 23:54:08,289 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 336 [2021-06-16 23:54:08,589 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 342 [2021-06-16 23:54:09,591 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 481 DAG size of output: 343 [2021-06-16 23:54:10,037 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 505 DAG size of output: 367 [2021-06-16 23:54:11,091 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 833 DAG size of output: 618 [2021-06-16 23:54:13,415 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 1424 DAG size of output: 997 [2021-06-16 23:54:19,182 WARN L205 SmtUtils]: Spent 5.76 s on a formula simplification. DAG size of input: 2319 DAG size of output: 1544 [2021-06-16 23:54:19,379 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 545 DAG size of output: 545 [2021-06-16 23:54:20,759 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 224 [2021-06-16 23:54:22,444 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 228 [2021-06-16 23:54:22,733 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 287 [2021-06-16 23:54:23,122 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 338 [2021-06-16 23:54:25,555 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 227 [2021-06-16 23:54:25,791 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 266 [2021-06-16 23:54:26,119 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 447 DAG size of output: 347 [2021-06-16 23:54:26,892 WARN L205 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 698 DAG size of output: 504 [2021-06-16 23:54:27,213 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 339 [2021-06-16 23:54:28,545 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 231 [2021-06-16 23:54:29,670 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 235 [2021-06-16 23:54:30,024 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 417 DAG size of output: 322 [2021-06-16 23:54:30,838 WARN L205 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 447 [2021-06-16 23:54:32,366 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 228 [2021-06-16 23:54:32,738 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 222 [2021-06-16 23:54:33,005 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 409 DAG size of output: 306 [2021-06-16 23:54:33,242 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 230 [2021-06-16 23:54:34,281 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 244 [2021-06-16 23:54:35,194 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 222 [2021-06-16 23:54:35,543 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 436 DAG size of output: 340 [2021-06-16 23:54:36,170 WARN L205 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 672 DAG size of output: 474 [2021-06-16 23:54:37,454 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 786 DAG size of output: 562 [2021-06-16 23:54:39,682 WARN L205 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 1315 DAG size of output: 893 [2021-06-16 23:54:49,307 WARN L205 SmtUtils]: Spent 9.61 s on a formula simplification. DAG size of input: 3402 DAG size of output: 2219 [2021-06-16 23:55:03,951 WARN L205 SmtUtils]: Spent 14.62 s on a formula simplification. DAG size of input: 4261 DAG size of output: 3009 [2021-06-16 23:55:25,134 WARN L205 SmtUtils]: Spent 21.16 s on a formula simplification. DAG size of input: 5206 DAG size of output: 3925 [2021-06-16 23:55:50,203 WARN L205 SmtUtils]: Spent 25.04 s on a formula simplification. DAG size of input: 6147 DAG size of output: 4510 [2021-06-16 23:56:16,796 WARN L205 SmtUtils]: Spent 26.56 s on a formula simplification. DAG size of input: 6182 DAG size of output: 4546 [2021-06-16 23:56:17,169 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 1227 DAG size of output: 1227 [2021-06-16 23:56:17,542 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 1198 DAG size of output: 1198 [2021-06-16 23:56:19,054 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 657 DAG size of output: 806 [2021-06-16 23:56:19,366 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 249 [2021-06-16 23:56:20,286 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 325 [2021-06-16 23:56:21,353 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 386 [2021-06-16 23:56:21,725 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 326 [2021-06-16 23:56:23,574 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 285 [2021-06-16 23:56:23,737 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 283 [2021-06-16 23:56:24,119 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 444 DAG size of output: 408 [2021-06-16 23:56:24,948 WARN L205 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 561 [2021-06-16 23:56:25,328 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 250 [2021-06-16 23:56:25,483 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 227 [2021-06-16 23:56:26,428 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 255 [2021-06-16 23:56:26,594 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 224 [2021-06-16 23:56:27,508 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 221 [2021-06-16 23:56:28,513 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 287 [2021-06-16 23:56:28,862 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 329 [2021-06-16 23:56:29,458 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 436 DAG size of output: 430 [2021-06-16 23:56:31,085 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 263 [2021-06-16 23:56:31,376 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 310 [2021-06-16 23:56:32,766 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 619 DAG size of output: 546 [2021-06-16 23:56:34,793 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 1092 DAG size of output: 916 [2021-06-16 23:56:38,616 WARN L205 SmtUtils]: Spent 3.82 s on a formula simplification. DAG size of input: 1323 DAG size of output: 1268 [2021-06-16 23:56:40,714 WARN L205 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 714 DAG size of output: 881 [2021-06-16 23:56:42,042 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 291 [2021-06-16 23:56:42,763 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 328 [2021-06-16 23:56:43,015 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 334 [2021-06-16 23:56:43,490 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 345 [2021-06-16 23:56:43,778 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 324 [2021-06-16 23:56:44,093 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 354 [2021-06-16 23:56:44,382 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 321 [2021-06-16 23:56:45,635 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 257 [2021-06-16 23:56:45,895 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 309 [2021-06-16 23:56:46,889 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 258 [2021-06-16 23:56:47,062 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 264 [2021-06-16 23:56:47,477 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 451 DAG size of output: 382 [2021-06-16 23:56:47,782 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 347 [2021-06-16 23:56:48,041 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 314 [2021-06-16 23:56:49,083 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 253 [2021-06-16 23:56:49,970 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 348 [2021-06-16 23:56:50,272 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 354 [2021-06-16 23:56:51,176 WARN L205 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 436 [2021-06-16 23:56:52,484 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 693 DAG size of output: 573 [2021-06-16 23:56:53,990 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 888 DAG size of output: 695 [2021-06-16 23:56:55,175 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 304 [2021-06-16 23:56:56,304 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 378 [2021-06-16 23:56:56,639 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 393 [2021-06-16 23:56:56,980 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 364 [2021-06-16 23:56:57,089 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 294 [2021-06-16 23:56:57,415 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 382 [2021-06-16 23:56:57,690 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 301 [2021-06-16 23:56:58,930 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 283 DAG size of output: 230 [2021-06-16 23:56:59,105 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 272 [2021-06-16 23:56:59,393 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 345 [2021-06-16 23:57:00,973 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 278 [2021-06-16 23:57:01,384 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 400 [2021-06-16 23:57:02,962 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 237 [2021-06-16 23:57:03,137 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 242 [2021-06-16 23:57:03,320 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 247 [2021-06-16 23:57:03,616 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 277 [2021-06-16 23:57:04,314 WARN L205 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 474 [2021-06-16 23:57:05,341 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 677 DAG size of output: 599 [2021-06-16 23:57:07,071 WARN L205 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 914 DAG size of output: 805 [2021-06-16 23:57:11,473 WARN L205 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 1578 DAG size of output: 1173 [2021-06-16 23:57:16,957 WARN L205 SmtUtils]: Spent 5.47 s on a formula simplification. DAG size of input: 1866 DAG size of output: 1552 [2021-06-16 23:57:27,106 WARN L205 SmtUtils]: Spent 10.10 s on a formula simplification. DAG size of input: 2940 DAG size of output: 2588 [2021-06-16 23:57:38,505 WARN L205 SmtUtils]: Spent 11.36 s on a formula simplification. DAG size of input: 2968 DAG size of output: 2618 [2021-06-16 23:58:20,828 WARN L205 SmtUtils]: Spent 42.30 s on a formula simplification. DAG size of input: 8402 DAG size of output: 6273 Received shutdown request... [2021-06-16 23:59:08,914 WARN L205 SmtUtils]: Spent 48.04 s on a formula simplification. DAG size of input: 8492 DAG size of output: 6351 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown