/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 14:13:11,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 14:13:11,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 14:13:11,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-17 14:13:11,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-17 14:13:11,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-17 14:13:11,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-17 14:13:11,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-17 14:13:11,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-17 14:13:11,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-17 14:13:11,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-17 14:13:11,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-17 14:13:11,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 14:13:11,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 14:13:11,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 14:13:11,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 14:13:11,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 14:13:11,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 14:13:11,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 14:13:11,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 14:13:11,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 14:13:11,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 14:13:11,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 14:13:11,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 14:13:11,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-17 14:13:11,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-17 14:13:11,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-17 14:13:11,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-17 14:13:11,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-17 14:13:11,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-17 14:13:11,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-17 14:13:11,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-17 14:13:11,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-17 14:13:11,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-17 14:13:11,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-17 14:13:11,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-17 14:13:11,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-17 14:13:11,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-17 14:13:11,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 14:13:11,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 14:13:11,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 14:13:11,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-06-17 14:13:11,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 14:13:11,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 14:13:11,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 14:13:11,779 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 14:13:11,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 14:13:11,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 14:13:11,780 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 14:13:11,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 14:13:11,780 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 14:13:11,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 14:13:11,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 14:13:11,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 14:13:11,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 14:13:11,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 14:13:11,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 14:13:11,781 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 14:13:11,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 14:13:11,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 14:13:11,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 14:13:11,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 14:13:11,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 14:13:11,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 14:13:11,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 14:13:11,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 14:13:11,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 14:13:11,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 14:13:11,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 14:13:11,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 14:13:11,783 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 14:13:11,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 14:13:11,783 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 14:13:11,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 14:13:11,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 14:13:11,784 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 14:13:11,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 14:13:11,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 14:13:12,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 14:13:12,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 14:13:12,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 14:13:12,155 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 14:13:12,156 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 14:13:12,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2021-06-17 14:13:12,157 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2021-06-17 14:13:12,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 14:13:12,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 14:13:12,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 14:13:12,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 14:13:12,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 14:13:12,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (1/1) ... [2021-06-17 14:13:12,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (1/1) ... [2021-06-17 14:13:12,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 14:13:12,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 14:13:12,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 14:13:12,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 14:13:12,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (1/1) ... [2021-06-17 14:13:12,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (1/1) ... [2021-06-17 14:13:12,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (1/1) ... [2021-06-17 14:13:12,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (1/1) ... [2021-06-17 14:13:12,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (1/1) ... [2021-06-17 14:13:12,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (1/1) ... [2021-06-17 14:13:12,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (1/1) ... [2021-06-17 14:13:12,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 14:13:12,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 14:13:12,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 14:13:12,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 14:13:12,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (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 [2021-06-17 14:13:12,314 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 14:13:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 14:13:12,314 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 14:13:12,314 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 14:13:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 14:13:12,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 14:13:12,315 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 14:13:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 14:13:12,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 14:13:12,316 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 14:13:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 14:13:12,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 14:13:12,318 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 14:13:12,514 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 14:13:12,514 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 14:13:12,516 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 02:13:12 BoogieIcfgContainer [2021-06-17 14:13:12,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 14:13:12,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 14:13:12,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 14:13:12,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 14:13:12,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:13:12" (1/2) ... [2021-06-17 14:13:12,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b98cad and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 02:13:12, skipping insertion in model container [2021-06-17 14:13:12,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 02:13:12" (2/2) ... [2021-06-17 14:13:12,523 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2021-06-17 14:13:12,527 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 14:13:12,527 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 14:13:12,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 14:13:12,528 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 14:13:12,560 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 14:13:12,580 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 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 [2021-06-17 14:13:12,652 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 14:13:12,653 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 14:13:12,653 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 14:13:12,653 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 14:13:12,653 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 14:13:12,653 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 14:13:12,653 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 14:13:12,654 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 14:13:12,782 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:12,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:12,787 INFO L82 PathProgramCache]: Analyzing trace with hash -2097392969, now seen corresponding path program 1 times [2021-06-17 14:13:12,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:12,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115109118] [2021-06-17 14:13:12,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:12,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 14:13:13,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:13,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115109118] [2021-06-17 14:13:13,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115109118] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 14:13:13,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 14:13:13,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 14:13:13,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638419237] [2021-06-17 14:13:13,006 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 14:13:13,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:13,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 14:13:13,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-17 14:13:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:13,023 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:13,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 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) [2021-06-17 14:13:13,025 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:13,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 14:13:13,144 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:13,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:13,148 INFO L82 PathProgramCache]: Analyzing trace with hash -680271139, now seen corresponding path program 1 times [2021-06-17 14:13:13,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:13,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343822176] [2021-06-17 14:13:13,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:13,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:13,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343822176] [2021-06-17 14:13:13,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343822176] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:13,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349588519] [2021-06-17 14:13:13,505 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 [2021-06-17 14:13:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:13,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-17 14:13:13,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:13,847 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:13,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-17 14:13:13,864 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:13:13,869 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:13,873 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:13:13,873 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:3 [2021-06-17 14:13:13,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:13,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349588519] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:13,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:13,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-17 14:13:13,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479109282] [2021-06-17 14:13:13,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 14:13:13,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:13,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 14:13:13,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-17 14:13:13,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:13,911 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:13,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 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) [2021-06-17 14:13:13,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:13,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:14,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:14,321 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:14,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:14,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1091492933, now seen corresponding path program 1 times [2021-06-17 14:13:14,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:14,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305272307] [2021-06-17 14:13:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:14,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:14,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305272307] [2021-06-17 14:13:14,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305272307] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:14,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830842928] [2021-06-17 14:13:14,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:14,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-17 14:13:14,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:14,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:14,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830842928] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:14,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:14,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-17 14:13:14,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396098301] [2021-06-17 14:13:14,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-17 14:13:14,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:14,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-17 14:13:14,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-17 14:13:14,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:14,509 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:14,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 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) [2021-06-17 14:13:14,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:14,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:14,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:14,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:14,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:14,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 14:13:14,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:14,805 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:14,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:14,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1831110405, now seen corresponding path program 2 times [2021-06-17 14:13:14,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:14,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533487292] [2021-06-17 14:13:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:14,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:14,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:14,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533487292] [2021-06-17 14:13:14,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533487292] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:14,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782097589] [2021-06-17 14:13:14,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:14,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 14:13:14,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:14,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 14:13:14,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:15,087 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:15,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782097589] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:15,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:15,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-17 14:13:15,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192807513] [2021-06-17 14:13:15,089 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 14:13:15,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:15,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 14:13:15,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-17 14:13:15,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:15,092 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:15,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-06-17 14:13:15,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:15,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:15,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 14:13:15,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:15,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:15,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:15,556 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:15,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:15,557 INFO L82 PathProgramCache]: Analyzing trace with hash 2027517141, now seen corresponding path program 2 times [2021-06-17 14:13:15,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:15,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824651556] [2021-06-17 14:13:15,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:15,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:15,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824651556] [2021-06-17 14:13:15,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824651556] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:15,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202198400] [2021-06-17 14:13:15,866 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 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 [2021-06-17 14:13:15,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 14:13:15,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:15,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-17 14:13:15,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:16,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:16,156 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:16,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-06-17 14:13:16,159 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:13:16,163 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:16,165 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:13:16,166 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:3 [2021-06-17 14:13:16,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:16,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202198400] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:16,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:16,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2021-06-17 14:13:16,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300243842] [2021-06-17 14:13:16,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 14:13:16,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:16,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 14:13:16,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-06-17 14:13:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:16,191 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:16,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:13:16,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:16,191 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:16,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:16,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:16,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:16,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:16,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:16,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:16,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:16,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 14:13:16,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:16,861 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:16,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:16,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1898212595, now seen corresponding path program 3 times [2021-06-17 14:13:16,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:16,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634435515] [2021-06-17 14:13:16,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:16,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:16,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634435515] [2021-06-17 14:13:16,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634435515] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:16,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370674618] [2021-06-17 14:13:16,913 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 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 [2021-06-17 14:13:16,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-17 14:13:16,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:16,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-17 14:13:16,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:17,050 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:17,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370674618] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:17,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:17,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-06-17 14:13:17,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728647624] [2021-06-17 14:13:17,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 14:13:17,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:17,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 14:13:17,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-06-17 14:13:17,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:17,052 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:17,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 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) [2021-06-17 14:13:17,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:17,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:17,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:17,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:17,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 14:13:17,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:17,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:17,532 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:17,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:17,533 INFO L82 PathProgramCache]: Analyzing trace with hash -390772019, now seen corresponding path program 4 times [2021-06-17 14:13:17,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:17,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508893283] [2021-06-17 14:13:17,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:17,895 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:17,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508893283] [2021-06-17 14:13:17,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508893283] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:17,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290636288] [2021-06-17 14:13:17,896 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 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 [2021-06-17 14:13:17,932 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 14:13:17,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:17,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-17 14:13:17,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:18,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:18,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:18,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:18,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-06-17 14:13:18,323 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:13:18,329 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:18,330 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:13:18,331 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:3 [2021-06-17 14:13:18,356 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:18,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290636288] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:18,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:18,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2021-06-17 14:13:18,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569447586] [2021-06-17 14:13:18,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-17 14:13:18,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:18,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-17 14:13:18,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2021-06-17 14:13:18,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:18,358 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:18,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 21 states have internal predecessors, (51), 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) [2021-06-17 14:13:18,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:18,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:18,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:18,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:18,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:18,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:18,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:19,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:19,518 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:19,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:19,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1169857339, now seen corresponding path program 5 times [2021-06-17 14:13:19,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:19,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793418886] [2021-06-17 14:13:19,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:19,998 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:19,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:19,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793418886] [2021-06-17 14:13:19,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793418886] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:19,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446170504] [2021-06-17 14:13:19,999 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:20,035 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-17 14:13:20,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:20,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 40 conjunts are in the unsatisfiable core [2021-06-17 14:13:20,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:20,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:20,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:20,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-06-17 14:13:20,425 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:13:20,430 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:20,431 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:13:20,432 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:3 [2021-06-17 14:13:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:20,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446170504] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:20,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:20,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 26 [2021-06-17 14:13:20,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461395071] [2021-06-17 14:13:20,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-17 14:13:20,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:20,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-17 14:13:20,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2021-06-17 14:13:20,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:20,460 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:20,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 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) [2021-06-17 14:13:20,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:20,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:20,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:20,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:20,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:20,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:20,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:20,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:23,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:23,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:23,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:23,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:23,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:23,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-17 14:13:23,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-17 14:13:23,313 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:23,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:23,313 INFO L82 PathProgramCache]: Analyzing trace with hash 550306547, now seen corresponding path program 1 times [2021-06-17 14:13:23,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:23,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504532145] [2021-06-17 14:13:23,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:23,344 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-06-17 14:13:23,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:23,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504532145] [2021-06-17 14:13:23,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504532145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 14:13:23,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 14:13:23,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 14:13:23,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069517918] [2021-06-17 14:13:23,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 14:13:23,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:23,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 14:13:23,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-17 14:13:23,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:23,348 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:23,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:13:23,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:23,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:23,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:23,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:23,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:23,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:23,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:23,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-17 14:13:23,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:23,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-17 14:13:23,543 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:23,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:23,543 INFO L82 PathProgramCache]: Analyzing trace with hash 412830381, now seen corresponding path program 6 times [2021-06-17 14:13:23,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:23,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626854920] [2021-06-17 14:13:23,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-17 14:13:24,086 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:24,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626854920] [2021-06-17 14:13:24,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626854920] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:24,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132673818] [2021-06-17 14:13:24,086 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 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 [2021-06-17 14:13:24,148 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-06-17 14:13:24,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:24,149 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 69 conjunts are in the unsatisfiable core [2021-06-17 14:13:24,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:25,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:25,077 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:25,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 33 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 49 [2021-06-17 14:13:25,087 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-17 14:13:25,136 INFO L628 ElimStorePlain]: treesize reduction 4, result has 88.6 percent of original size [2021-06-17 14:13:25,149 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 14:13:25,149 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:73, output treesize:26 [2021-06-17 14:13:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:25,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132673818] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:25,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:25,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24] total 38 [2021-06-17 14:13:25,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959798313] [2021-06-17 14:13:25,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-17 14:13:25,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:25,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-17 14:13:25,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1214, Unknown=0, NotChecked=0, Total=1406 [2021-06-17 14:13:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:25,241 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:25,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 38 states have internal predecessors, (80), 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) [2021-06-17 14:13:25,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:25,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:25,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:25,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:25,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:25,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:25,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:25,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:25,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:25,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:28,004 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-06-17 14:13:28,652 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2021-06-17 14:13:29,532 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2021-06-17 14:13:29,726 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-06-17 14:13:30,591 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2021-06-17 14:13:31,044 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2021-06-17 14:13:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:31,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:31,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:31,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:31,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:31,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:31,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:31,276 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:31,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:31,276 INFO L82 PathProgramCache]: Analyzing trace with hash 2071869881, now seen corresponding path program 7 times [2021-06-17 14:13:31,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:31,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415329760] [2021-06-17 14:13:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-06-17 14:13:31,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:31,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415329760] [2021-06-17 14:13:31,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415329760] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:31,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629470296] [2021-06-17 14:13:31,690 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 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 [2021-06-17 14:13:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:31,744 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 80 conjunts are in the unsatisfiable core [2021-06-17 14:13:31,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:32,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:32,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:32,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:32,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:32,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:32,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:32,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:32,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:32,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 36 disjoint index pairs (out of 55 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 25 [2021-06-17 14:13:32,586 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:13:32,590 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:32,592 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:13:32,592 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:69, output treesize:3 [2021-06-17 14:13:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:32,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629470296] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:32,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:32,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24] total 38 [2021-06-17 14:13:32,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136731290] [2021-06-17 14:13:32,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-17 14:13:32,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:32,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-17 14:13:32,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1261, Unknown=0, NotChecked=0, Total=1406 [2021-06-17 14:13:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:32,616 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:32,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 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) [2021-06-17 14:13:32,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:32,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:32,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:38,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:38,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-17 14:13:38,645 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:38,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:38,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1878010899, now seen corresponding path program 8 times [2021-06-17 14:13:38,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:38,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703417832] [2021-06-17 14:13:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 52 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-06-17 14:13:38,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:38,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703417832] [2021-06-17 14:13:38,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703417832] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:38,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146995781] [2021-06-17 14:13:38,738 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 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 [2021-06-17 14:13:38,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 14:13:38,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:38,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-17 14:13:38,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:39,028 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 28 proven. 33 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-06-17 14:13:39,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146995781] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:39,029 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:39,029 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 16 [2021-06-17 14:13:39,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250723338] [2021-06-17 14:13:39,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-17 14:13:39,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:39,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-17 14:13:39,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-06-17 14:13:39,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:39,030 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:39,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 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) [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:39,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:39,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:39,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:39,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:39,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:39,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:39,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-17 14:13:39,621 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:39,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:39,621 INFO L82 PathProgramCache]: Analyzing trace with hash 848638449, now seen corresponding path program 9 times [2021-06-17 14:13:39,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:39,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810718204] [2021-06-17 14:13:39,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:40,239 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 1 proven. 133 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-06-17 14:13:40,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:40,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810718204] [2021-06-17 14:13:40,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810718204] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:40,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289011017] [2021-06-17 14:13:40,239 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 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 [2021-06-17 14:13:40,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-06-17 14:13:40,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:40,291 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 103 conjunts are in the unsatisfiable core [2021-06-17 14:13:40,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:41,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:41,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,662 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:41,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:41,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:41,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 29 [2021-06-17 14:13:41,681 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:13:41,688 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:41,689 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:13:41,689 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:94, output treesize:13 [2021-06-17 14:13:41,759 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:41,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289011017] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:41,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:41,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 31] total 47 [2021-06-17 14:13:41,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293244557] [2021-06-17 14:13:41,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-06-17 14:13:41,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:41,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-06-17 14:13:41,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1939, Unknown=0, NotChecked=0, Total=2162 [2021-06-17 14:13:41,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:41,761 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:41,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 2.0851063829787235) internal successors, (98), 47 states have internal predecessors, (98), 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) [2021-06-17 14:13:41,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:41,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:41,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:41,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:41,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:41,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:41,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:41,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:41,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:41,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:41,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:41,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:41,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:47,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:47,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:47,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:47,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:47,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-06-17 14:13:48,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-17 14:13:48,085 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:48,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:48,085 INFO L82 PathProgramCache]: Analyzing trace with hash 441701447, now seen corresponding path program 10 times [2021-06-17 14:13:48,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:48,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862924992] [2021-06-17 14:13:48,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 16 proven. 105 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-06-17 14:13:48,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:48,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862924992] [2021-06-17 14:13:48,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862924992] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:48,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988750263] [2021-06-17 14:13:48,188 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 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 [2021-06-17 14:13:48,244 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 14:13:48,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:48,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-17 14:13:48,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:48,427 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 16 proven. 97 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-06-17 14:13:48,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988750263] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:48,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:48,427 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 17 [2021-06-17 14:13:48,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034376366] [2021-06-17 14:13:48,428 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 14:13:48,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:48,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 14:13:48,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-06-17 14:13:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:48,429 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:48,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 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) [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-06-17 14:13:48,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-06-17 14:13:49,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 14:13:49,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-17 14:13:49,219 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:49,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:49,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1038198057, now seen corresponding path program 11 times [2021-06-17 14:13:49,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:49,220 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633529702] [2021-06-17 14:13:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:49,786 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 4 proven. 178 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-06-17 14:13:49,787 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:49,787 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633529702] [2021-06-17 14:13:49,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633529702] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:49,787 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216547058] [2021-06-17 14:13:49,787 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 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 [2021-06-17 14:13:49,879 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-06-17 14:13:49,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:49,882 WARN L261 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 111 conjunts are in the unsatisfiable core [2021-06-17 14:13:49,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:51,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:51,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:52,632 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2021-06-17 14:13:52,632 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:52,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 54 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 82 case distinctions, treesize of input 97 treesize of output 827 [2021-06-17 14:13:53,084 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 815 DAG size of output: 630 [2021-06-17 14:13:53,532 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 841 DAG size of output: 657 [2021-06-17 14:13:57,197 WARN L205 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 4903 DAG size of output: 2772 [2021-06-17 14:14:00,593 WARN L205 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 4928 DAG size of output: 2797 [2021-06-17 14:14:28,663 WARN L205 SmtUtils]: Spent 25.70 s on a formula simplification. DAG size of input: 25208 DAG size of output: 12032 [2021-06-17 14:14:56,996 WARN L205 SmtUtils]: Spent 27.53 s on a formula simplification. DAG size of input: 25230 DAG size of output: 12052 [2021-06-17 14:15:42,690 WARN L205 SmtUtils]: Spent 45.56 s on a formula simplification. DAG size of input: 11158 DAG size of output: 11641 [2021-06-17 14:16:29,335 WARN L205 SmtUtils]: Spent 46.46 s on a formula simplification. DAG size of input: 11142 DAG size of output: 12211 [2021-06-17 14:16:49,265 WARN L205 SmtUtils]: Spent 19.79 s on a formula simplification. DAG size of input: 11136 DAG size of output: 11136 [2021-06-17 14:17:25,373 WARN L205 SmtUtils]: Spent 36.02 s on a formula simplification. DAG size of input: 9911 DAG size of output: 9993 [2021-06-17 14:18:02,443 WARN L205 SmtUtils]: Spent 36.96 s on a formula simplification. DAG size of input: 9907 DAG size of output: 10147 [2021-06-17 14:18:40,050 WARN L205 SmtUtils]: Spent 37.43 s on a formula simplification. DAG size of input: 9902 DAG size of output: 9902 [2021-06-17 14:18:41,213 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1850 DAG size of output: 1850 [2021-06-17 14:18:41,576 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 454 DAG size of output: 463 [2021-06-17 14:18:41,842 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 399 [2021-06-17 14:18:42,215 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 623 DAG size of output: 521 [2021-06-17 14:18:42,396 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 565 [2021-06-17 14:18:42,629 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 752 DAG size of output: 609 [2021-06-17 14:18:42,901 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 894 DAG size of output: 723 [2021-06-17 14:18:43,256 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 992 DAG size of output: 781 [2021-06-17 14:18:45,225 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 1644 DAG size of output: 1859 [2021-06-17 14:18:45,897 WARN L205 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 1503 DAG size of output: 1503 [2021-06-17 14:18:46,096 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 324 DAG size of output: 335 [2021-06-17 14:18:46,671 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 598 DAG size of output: 499 [2021-06-17 14:18:46,864 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 688 DAG size of output: 559 [2021-06-17 14:18:47,358 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 1303 DAG size of output: 1303 [2021-06-17 14:18:48,052 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 736 DAG size of output: 615 [2021-06-17 14:18:48,235 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 887 DAG size of output: 763 [2021-06-17 14:18:49,060 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 1122 DAG size of output: 1192 [2021-06-17 14:18:50,353 WARN L205 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 2023 DAG size of output: 1600 [2021-06-17 14:18:51,540 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 2597 DAG size of output: 2027 [2021-06-17 14:18:53,235 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 3094 DAG size of output: 2397 [2021-06-17 14:18:56,185 WARN L205 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 3747 DAG size of output: 2946 [2021-06-17 14:19:00,070 WARN L205 SmtUtils]: Spent 3.87 s on a formula simplification. DAG size of input: 4383 DAG size of output: 3398 [2021-06-17 14:19:02,688 WARN L205 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 1838 DAG size of output: 1949 [2021-06-17 14:19:03,601 WARN L205 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 1772 DAG size of output: 1772 [2021-06-17 14:19:05,118 WARN L205 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1543 DAG size of output: 1609 [2021-06-17 14:19:05,741 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 655 DAG size of output: 531 [2021-06-17 14:19:05,896 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 840 DAG size of output: 694 [2021-06-17 14:19:06,169 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 1048 DAG size of output: 886 [2021-06-17 14:19:06,486 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 1288 DAG size of output: 1093 [2021-06-17 14:19:06,602 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 374 DAG size of output: 387 [2021-06-17 14:19:07,035 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 715 DAG size of output: 547 [2021-06-17 14:19:10,151 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 4543 DAG size of output: 3336 [2021-06-17 14:19:10,440 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 397 [2021-06-17 14:19:10,710 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 689 DAG size of output: 457 [2021-06-17 14:19:10,906 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 494 [2021-06-17 14:19:11,135 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 817 DAG size of output: 537 [2021-06-17 14:19:14,405 WARN L205 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 5089 DAG size of output: 3642 [2021-06-17 14:19:19,461 WARN L205 SmtUtils]: Spent 5.03 s on a formula simplification. DAG size of input: 5880 DAG size of output: 4259 [2021-06-17 14:19:20,375 WARN L205 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 1194 DAG size of output: 1355 [2021-06-17 14:19:20,913 WARN L205 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 1002 DAG size of output: 1088 [2021-06-17 14:19:21,241 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 518 [2021-06-17 14:19:22,206 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 1737 DAG size of output: 1558 [2021-06-17 14:19:23,434 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 2404 DAG size of output: 2088 [2021-06-17 14:19:24,080 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 1101 DAG size of output: 1147 [2021-06-17 14:19:25,235 WARN L205 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 1782 [2021-06-17 14:19:26,112 WARN L205 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 1295 DAG size of output: 1366 [2021-06-17 14:19:27,701 WARN L205 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 2670 DAG size of output: 1977 [2021-06-17 14:19:28,108 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 793 DAG size of output: 815 [2021-06-17 14:19:28,424 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 804 [2021-06-17 14:19:28,643 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 627 [2021-06-17 14:19:28,800 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 639 [2021-06-17 14:19:29,228 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 1146 DAG size of output: 942 [2021-06-17 14:19:29,614 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 1476 DAG size of output: 1264 [2021-06-17 14:19:30,287 WARN L205 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 1911 DAG size of output: 1689 [2021-06-17 14:19:31,338 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 2299 DAG size of output: 2063 [2021-06-17 14:19:31,625 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 673 DAG size of output: 699 [2021-06-17 14:19:31,902 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 711 [2021-06-17 14:19:32,515 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 915 DAG size of output: 818 [2021-06-17 14:19:32,971 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 1267 DAG size of output: 1130 [2021-06-17 14:19:33,390 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 1709 DAG size of output: 1545 [2021-06-17 14:19:34,041 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 2113 DAG size of output: 1929 [2021-06-17 14:19:34,301 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 727 DAG size of output: 761 [2021-06-17 14:19:34,801 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 1265 DAG size of output: 1034 [2021-06-17 14:19:35,112 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 731 DAG size of output: 768 [2021-06-17 14:19:35,377 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 818 [2021-06-17 14:19:36,188 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 588 [2021-06-17 14:19:36,857 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1000 DAG size of output: 700 [2021-06-17 14:19:37,236 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 1185 DAG size of output: 1185 [2021-06-17 14:19:37,666 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 719 DAG size of output: 561 [2021-06-17 14:19:38,297 WARN L205 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 985 DAG size of output: 1154 [2021-06-17 14:19:39,109 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 1733 DAG size of output: 1376 [2021-06-17 14:19:39,969 WARN L205 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 2246 DAG size of output: 1757 [2021-06-17 14:19:40,544 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 1355 DAG size of output: 1355 [2021-06-17 14:19:41,159 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 447 DAG size of output: 404 [2021-06-17 14:19:41,377 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 503 [2021-06-17 14:19:41,660 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 552 [2021-06-17 14:19:42,605 WARN L205 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 1194 DAG size of output: 1212 [2021-06-17 14:19:43,256 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 742 [2021-06-17 14:19:43,464 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 1124 DAG size of output: 885 [2021-06-17 14:19:45,247 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 3141 DAG size of output: 2326 [2021-06-17 14:19:47,186 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 3540 DAG size of output: 2653 [2021-06-17 14:19:48,956 WARN L205 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 1381 DAG size of output: 1418 [2021-06-17 14:19:49,600 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 1367 DAG size of output: 1367 [2021-06-17 14:19:50,008 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 1077 DAG size of output: 1077 [2021-06-17 14:19:50,321 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 946 DAG size of output: 946 [2021-06-17 14:19:50,822 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 764 DAG size of output: 764 [2021-06-17 14:19:51,385 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 919 DAG size of output: 764 [2021-06-17 14:19:51,539 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 601 DAG size of output: 601 [2021-06-17 14:19:52,118 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 912 DAG size of output: 665 [2021-06-17 14:19:52,571 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 1181 DAG size of output: 872 [2021-06-17 14:19:53,107 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 1878 DAG size of output: 1345 [2021-06-17 14:19:53,892 WARN L205 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 2211 DAG size of output: 1612 [2021-06-17 14:19:55,058 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 2423 DAG size of output: 1764 [2021-06-17 14:19:55,236 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 397 [2021-06-17 14:19:55,710 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 808 DAG size of output: 543 [2021-06-17 14:19:55,890 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 853 DAG size of output: 561 [2021-06-17 14:19:57,718 WARN L205 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 3156 DAG size of output: 2208 [2021-06-17 14:20:00,789 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 3573 DAG size of output: 2611 [2021-06-17 14:21:07,814 WARN L205 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 31705 DAG size of output: 24019 [2021-06-17 14:22:39,067 WARN L205 SmtUtils]: Spent 1.52 m on a formula simplification. DAG size of input: 35985 DAG size of output: 27854 [2021-06-17 14:24:38,792 WARN L205 SmtUtils]: Spent 1.99 m on a formula simplification. DAG size of input: 40914 DAG size of output: 31950 [2021-06-17 14:24:41,346 WARN L205 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 1742 DAG size of output: 1777 [2021-06-17 14:24:43,610 WARN L205 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 1738 DAG size of output: 1937 [2021-06-17 14:24:45,396 WARN L205 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1507 DAG size of output: 1548 [2021-06-17 14:24:47,175 WARN L205 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1503 DAG size of output: 1503 [2021-06-17 14:24:48,715 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1497 DAG size of output: 1639 [2021-06-17 14:24:49,389 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 446 [2021-06-17 14:24:49,659 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 873 DAG size of output: 608 [2021-06-17 14:24:51,511 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 3242 DAG size of output: 2491 [2021-06-17 14:24:54,483 WARN L205 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 3922 DAG size of output: 3004 [2021-06-17 14:24:58,647 WARN L205 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 4596 DAG size of output: 3606 [2021-06-17 14:25:04,636 WARN L205 SmtUtils]: Spent 5.97 s on a formula simplification. DAG size of input: 5013 DAG size of output: 4007 [2021-06-17 14:25:12,732 WARN L205 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 5755 DAG size of output: 4595 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown