/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-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 22:57:14,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 22:57:14,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 22:57:14,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 22:57:14,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 22:57:14,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 22:57:14,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 22:57:14,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 22:57:14,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 22:57:14,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 22:57:14,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 22:57:14,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 22:57:14,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 22:57:14,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 22:57:14,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 22:57:14,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 22:57:14,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 22:57:14,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 22:57:14,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 22:57:14,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 22:57:14,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 22:57:14,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 22:57:14,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 22:57:14,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 22:57:14,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-09 22:57:14,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 22:57:14,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 22:57:14,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 22:57:14,129 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-FA-NoLbe-Delay.epf [2021-07-09 22:57:14,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 22:57:14,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 22:57:14,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 22:57:14,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 22:57:14,160 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 22:57:14,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 22:57:14,160 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 22:57:14,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 22:57:14,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 22:57:14,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 22:57:14,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 22:57:14,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 22:57:14,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 22:57:14,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 22:57:14,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 22:57:14,162 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 22:57:14,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 22:57:14,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 22:57:14,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 22:57:14,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 22:57:14,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 22:57:14,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:57:14,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 22:57:14,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 22:57:14,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 22:57:14,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 22:57:14,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 22:57:14,164 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 22:57:14,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 22:57:14,164 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 22:57:14,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 22:57:14,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 22:57:14,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 22:57:14,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 22:57:14,436 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-09 22:57:14,437 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-09 22:57:14,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-symm.wvr.bpl [2021-07-09 22:57:14,438 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-symm.wvr.bpl' [2021-07-09 22:57:14,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 22:57:14,474 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-09 22:57:14,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 22:57:14,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 22:57:14,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 22:57:14,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/1) ... [2021-07-09 22:57:14,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/1) ... [2021-07-09 22:57:14,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 22:57:14,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 22:57:14,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 22:57:14,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 22:57:14,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/1) ... [2021-07-09 22:57:14,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/1) ... [2021-07-09 22:57:14,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/1) ... [2021-07-09 22:57:14,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/1) ... [2021-07-09 22:57:14,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/1) ... [2021-07-09 22:57:14,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/1) ... [2021-07-09 22:57:14,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/1) ... [2021-07-09 22:57:14,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 22:57:14,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 22:57:14,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 22:57:14,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 22:57:14,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:57:14,609 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-09 22:57:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 22:57:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 22:57:14,609 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-09 22:57:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 22:57:14,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 22:57:14,609 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-09 22:57:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 22:57:14,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 22:57:14,610 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 22:57:15,201 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 22:57:15,202 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-09 22:57:15,204 INFO L202 PluginConnector]: Adding new model poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:57:15 BoogieIcfgContainer [2021-07-09 22:57:15,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 22:57:15,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 22:57:15,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 22:57:15,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 22:57:15,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 10:57:14" (1/2) ... [2021-07-09 22:57:15,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3d93a and model type poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:57:15, skipping insertion in model container [2021-07-09 22:57:15,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "poker-hand-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:57:15" (2/2) ... [2021-07-09 22:57:15,211 INFO L111 eAbstractionObserver]: Analyzing ICFG poker-hand-symm.wvr.bpl [2021-07-09 22:57:15,214 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 22:57:15,214 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 22:57:15,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 22:57:15,215 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 22:57:15,248 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-09 22:57:15,268 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-07-09 22:57:15,286 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 22:57:15,286 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 22:57:15,286 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 22:57:15,287 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 22:57:15,287 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 22:57:15,287 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 22:57:15,287 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 22:57:15,287 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 22:57:15,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 29 states have (on average 2.2758620689655173) internal successors, (66), 38 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:15,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-09 22:57:15,345 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:57:15,345 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:57:15,345 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 22:57:15,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:57:15,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1483682483, now seen corresponding path program 1 times [2021-07-09 22:57:15,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:57:15,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74155158] [2021-07-09 22:57:15,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:57:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:15,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:15,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:15,741 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 100 [2021-07-09 22:57:15,743 INFO L142 QuantifierPusher]: treesize reduction 521, result has 53.7 percent of original size [2021-07-09 22:57:15,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 605 [2021-07-09 22:57:16,169 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2021-07-09 22:57:16,213 INFO L142 QuantifierPusher]: treesize reduction 1484, result has 15.2 percent of original size [2021-07-09 22:57:16,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 266 [2021-07-09 22:57:16,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:57:16,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:57:16,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74155158] [2021-07-09 22:57:16,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74155158] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:57:16,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:57:16,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 22:57:16,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859124974] [2021-07-09 22:57:16,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-09 22:57:16,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:57:16,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-09 22:57:16,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-09 22:57:16,311 INFO L87 Difference]: Start difference. First operand has 39 states, 29 states have (on average 2.2758620689655173) internal successors, (66), 38 states have internal predecessors, (66), 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) Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,477 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-07-09 22:57:16,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:57:16,501 INFO L93 Difference]: Finished difference Result 63 states and 90 transitions. [2021-07-09 22:57:16,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-09 22:57:16,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-07-09 22:57:16,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:57:16,510 INFO L225 Difference]: With dead ends: 63 [2021-07-09 22:57:16,510 INFO L226 Difference]: Without dead ends: 24 [2021-07-09 22:57:16,511 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 601.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 22:57:16,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-07-09 22:57:16,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2021-07-09 22:57:16,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2021-07-09 22:57:16,563 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 24 transitions. Word has length 10 [2021-07-09 22:57:16,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:57:16,564 INFO L482 AbstractCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-07-09 22:57:16,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,567 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2021-07-09 22:57:16,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-09 22:57:16,568 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:57:16,568 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:57:16,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 22:57:16,568 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 22:57:16,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:57:16,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1172848396, now seen corresponding path program 1 times [2021-07-09 22:57:16,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:57:16,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238664095] [2021-07-09 22:57:16,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:57:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:16,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:16,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:57:16,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:57:16,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238664095] [2021-07-09 22:57:16,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238664095] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:57:16,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:57:16,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 22:57:16,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733099259] [2021-07-09 22:57:16,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 22:57:16,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:57:16,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 22:57:16,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,590 INFO L87 Difference]: Start difference. First operand 17 states and 24 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:57:16,594 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2021-07-09 22:57:16,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 22:57:16,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-09 22:57:16,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:57:16,596 INFO L225 Difference]: With dead ends: 18 [2021-07-09 22:57:16,596 INFO L226 Difference]: Without dead ends: 18 [2021-07-09 22:57:16,596 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-07-09 22:57:16,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-07-09 22:57:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2021-07-09 22:57:16,598 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 25 transitions. Word has length 11 [2021-07-09 22:57:16,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:57:16,598 INFO L482 AbstractCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-07-09 22:57:16,598 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,598 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2021-07-09 22:57:16,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-09 22:57:16,599 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:57:16,599 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:57:16,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 22:57:16,599 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 22:57:16,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:57:16,599 INFO L82 PathProgramCache]: Analyzing trace with hash 298857642, now seen corresponding path program 1 times [2021-07-09 22:57:16,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:57:16,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323170261] [2021-07-09 22:57:16,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:57:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:16,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:16,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:57:16,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:57:16,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323170261] [2021-07-09 22:57:16,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323170261] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:57:16,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:57:16,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 22:57:16,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019401649] [2021-07-09 22:57:16,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 22:57:16,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:57:16,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 22:57:16,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,616 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:57:16,621 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2021-07-09 22:57:16,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 22:57:16,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-09 22:57:16,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:57:16,622 INFO L225 Difference]: With dead ends: 19 [2021-07-09 22:57:16,622 INFO L226 Difference]: Without dead ends: 19 [2021-07-09 22:57:16,622 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-07-09 22:57:16,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-07-09 22:57:16,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-07-09 22:57:16,624 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 26 transitions. Word has length 11 [2021-07-09 22:57:16,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:57:16,624 INFO L482 AbstractCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-07-09 22:57:16,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,625 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-07-09 22:57:16,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-09 22:57:16,625 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:57:16,625 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:57:16,625 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 22:57:16,625 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 22:57:16,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:57:16,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1150346346, now seen corresponding path program 1 times [2021-07-09 22:57:16,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:57:16,626 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15455344] [2021-07-09 22:57:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:57:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:16,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:16,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:57:16,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:57:16,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15455344] [2021-07-09 22:57:16,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15455344] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:57:16,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:57:16,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 22:57:16,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013968856] [2021-07-09 22:57:16,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 22:57:16,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:57:16,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 22:57:16,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,649 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:57:16,654 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-07-09 22:57:16,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 22:57:16,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-07-09 22:57:16,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:57:16,656 INFO L225 Difference]: With dead ends: 20 [2021-07-09 22:57:16,656 INFO L226 Difference]: Without dead ends: 20 [2021-07-09 22:57:16,656 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-07-09 22:57:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-07-09 22:57:16,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-07-09 22:57:16,663 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 11 [2021-07-09 22:57:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:57:16,664 INFO L482 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-07-09 22:57:16,664 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-07-09 22:57:16,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-09 22:57:16,664 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:57:16,665 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:57:16,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 22:57:16,665 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 22:57:16,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:57:16,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1000469802, now seen corresponding path program 1 times [2021-07-09 22:57:16,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:57:16,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669633250] [2021-07-09 22:57:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:57:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:16,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,694 INFO L142 QuantifierPusher]: treesize reduction -2, result has 114.3 percent of original size [2021-07-09 22:57:16,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-09 22:57:16,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 22:57:16,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:57:16,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669633250] [2021-07-09 22:57:16,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669633250] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:57:16,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:57:16,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 22:57:16,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472287072] [2021-07-09 22:57:16,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 22:57:16,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:57:16,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 22:57:16,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,702 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:57:16,712 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-07-09 22:57:16,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 22:57:16,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2021-07-09 22:57:16,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:57:16,713 INFO L225 Difference]: With dead ends: 28 [2021-07-09 22:57:16,713 INFO L226 Difference]: Without dead ends: 28 [2021-07-09 22:57:16,713 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-07-09 22:57:16,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2021-07-09 22:57:16,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-07-09 22:57:16,715 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 12 [2021-07-09 22:57:16,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:57:16,716 INFO L482 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-07-09 22:57:16,716 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,716 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-07-09 22:57:16,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-09 22:57:16,716 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:57:16,716 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:57:16,716 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 22:57:16,716 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 22:57:16,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:57:16,717 INFO L82 PathProgramCache]: Analyzing trace with hash -2070974061, now seen corresponding path program 1 times [2021-07-09 22:57:16,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:57:16,717 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004876382] [2021-07-09 22:57:16,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:57:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:16,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,740 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.9 percent of original size [2021-07-09 22:57:16,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-07-09 22:57:16,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 22:57:16,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:57:16,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004876382] [2021-07-09 22:57:16,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004876382] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:57:16,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:57:16,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 22:57:16,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858652720] [2021-07-09 22:57:16,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 22:57:16,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:57:16,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 22:57:16,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,760 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:57:16,780 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2021-07-09 22:57:16,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 22:57:16,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2021-07-09 22:57:16,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:57:16,785 INFO L225 Difference]: With dead ends: 26 [2021-07-09 22:57:16,786 INFO L226 Difference]: Without dead ends: 26 [2021-07-09 22:57:16,787 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-07-09 22:57:16,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2021-07-09 22:57:16,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-07-09 22:57:16,793 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 12 [2021-07-09 22:57:16,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:57:16,793 INFO L482 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-07-09 22:57:16,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,794 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2021-07-09 22:57:16,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-07-09 22:57:16,794 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:57:16,794 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:57:16,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 22:57:16,794 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 22:57:16,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:57:16,795 INFO L82 PathProgramCache]: Analyzing trace with hash 2069371734, now seen corresponding path program 1 times [2021-07-09 22:57:16,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:57:16,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571551718] [2021-07-09 22:57:16,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:57:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:16,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,833 INFO L142 QuantifierPusher]: treesize reduction 18, result has 47.1 percent of original size [2021-07-09 22:57:16,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-09 22:57:16,841 INFO L142 QuantifierPusher]: treesize reduction 9, result has 83.6 percent of original size [2021-07-09 22:57:16,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-07-09 22:57:16,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 22:57:16,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:57:16,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571551718] [2021-07-09 22:57:16,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571551718] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:57:16,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:57:16,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 22:57:16,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372387175] [2021-07-09 22:57:16,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 22:57:16,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:57:16,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 22:57:16,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,846 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:57:16,857 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-07-09 22:57:16,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 22:57:16,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2021-07-09 22:57:16,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:57:16,858 INFO L225 Difference]: With dead ends: 28 [2021-07-09 22:57:16,858 INFO L226 Difference]: Without dead ends: 26 [2021-07-09 22:57:16,860 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-07-09 22:57:16,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2021-07-09 22:57:16,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2021-07-09 22:57:16,862 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 12 [2021-07-09 22:57:16,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:57:16,862 INFO L482 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-07-09 22:57:16,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2021-07-09 22:57:16,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-09 22:57:16,863 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:57:16,863 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:57:16,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 22:57:16,863 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 22:57:16,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:57:16,863 INFO L82 PathProgramCache]: Analyzing trace with hash -696432984, now seen corresponding path program 1 times [2021-07-09 22:57:16,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:57:16,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138991213] [2021-07-09 22:57:16,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:57:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:16,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:16,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 22:57:16,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:57:16,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138991213] [2021-07-09 22:57:16,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138991213] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:57:16,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:57:16,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 22:57:16,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089272496] [2021-07-09 22:57:16,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-09 22:57:16,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:57:16,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-09 22:57:16,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,878 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:57:16,883 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-07-09 22:57:16,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-09 22:57:16,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-07-09 22:57:16,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:57:16,884 INFO L225 Difference]: With dead ends: 21 [2021-07-09 22:57:16,884 INFO L226 Difference]: Without dead ends: 21 [2021-07-09 22:57:16,884 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-09 22:57:16,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-07-09 22:57:16,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-07-09 22:57:16,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-07-09 22:57:16,885 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2021-07-09 22:57:16,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:57:16,885 INFO L482 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-07-09 22:57:16,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-07-09 22:57:16,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-09 22:57:16,886 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:57:16,886 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:57:16,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 22:57:16,886 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 22:57:16,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:57:16,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1494124871, now seen corresponding path program 1 times [2021-07-09 22:57:16,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:57:16,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086882937] [2021-07-09 22:57:16,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:57:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:16,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:16,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:16,963 INFO L142 QuantifierPusher]: treesize reduction 71, result has 13.4 percent of original size [2021-07-09 22:57:16,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-09 22:57:16,970 INFO L142 QuantifierPusher]: treesize reduction 30, result has 78.4 percent of original size [2021-07-09 22:57:16,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-07-09 22:57:17,012 INFO L142 QuantifierPusher]: treesize reduction 71, result has 59.9 percent of original size [2021-07-09 22:57:17,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-07-09 22:57:17,052 INFO L142 QuantifierPusher]: treesize reduction 79, result has 58.4 percent of original size [2021-07-09 22:57:17,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-07-09 22:57:17,099 INFO L142 QuantifierPusher]: treesize reduction 57, result has 53.7 percent of original size [2021-07-09 22:57:17,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-07-09 22:57:17,151 INFO L142 QuantifierPusher]: treesize reduction 40, result has 55.1 percent of original size [2021-07-09 22:57:17,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-07-09 22:57:17,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:57:17,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:57:17,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086882937] [2021-07-09 22:57:17,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086882937] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 22:57:17,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45712450] [2021-07-09 22:57:17,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 22:57:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:17,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-09 22:57:17,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 22:57:17,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:17,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:17,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:17,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:17,314 INFO L142 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size [2021-07-09 22:57:17,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-09 22:57:17,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-07-09 22:57:17,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-09 22:57:17,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-07-09 22:57:17,342 INFO L142 QuantifierPusher]: treesize reduction 134, result has 62.1 percent of original size [2021-07-09 22:57:17,349 INFO L147 QuantifierPusher]: treesize reduction 25, result has 88.3 percent of original size 189 [2021-07-09 22:57:17,353 INFO L142 QuantifierPusher]: treesize reduction 25, result has 88.3 percent of original size [2021-07-09 22:57:17,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-07-09 22:57:17,459 INFO L142 QuantifierPusher]: treesize reduction 33, result has 78.7 percent of original size [2021-07-09 22:57:17,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-07-09 22:57:17,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-07-09 22:57:17,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:57:17,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-07-09 22:57:17,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-07-09 22:57:17,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-07-09 22:57:17,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-07-09 22:57:17,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-07-09 22:57:17,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-07-09 22:57:17,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-07-09 22:57:17,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-07-09 22:57:17,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-07-09 22:57:17,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-07-09 22:57:17,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-07-09 22:57:17,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-07-09 22:57:17,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-07-09 22:57:17,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-07-09 22:57:17,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-07-09 22:57:17,624 INFO L142 QuantifierPusher]: treesize reduction 454, result has 36.1 percent of original size [2021-07-09 22:57:17,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,636 INFO L147 QuantifierPusher]: treesize reduction 25, result has 83.9 percent of original size 130 [2021-07-09 22:57:17,640 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-07-09 22:57:17,643 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,648 INFO L142 QuantifierPusher]: treesize reduction 304, result has 34.6 percent of original size [2021-07-09 22:57:17,651 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-07-09 22:57:17,654 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,655 INFO L142 QuantifierPusher]: treesize reduction 41, result has 59.0 percent of original size [2021-07-09 22:57:17,658 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-07-09 22:57:17,659 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,668 INFO L142 QuantifierPusher]: treesize reduction 34, result has 38.2 percent of original size [2021-07-09 22:57:17,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:57:17,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:57:17,675 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-07-09 22:57:17,677 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,679 INFO L142 QuantifierPusher]: treesize reduction 43, result has 57.8 percent of original size [2021-07-09 22:57:17,682 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-07-09 22:57:17,685 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,686 INFO L142 QuantifierPusher]: treesize reduction 34, result has 42.4 percent of original size [2021-07-09 22:57:17,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-09 22:57:17,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-09 22:57:17,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-09 22:57:17,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-09 22:57:17,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-07-09 22:57:17,716 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.4 percent of original size [2021-07-09 22:57:17,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-09 22:57:17,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-07-09 22:57:17,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:57:17,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-09 22:57:17,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-09 22:57:17,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-07-09 22:57:17,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-07-09 22:57:17,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-07-09 22:57:17,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:17,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-07-09 22:57:17,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-07-09 22:57:17,765 INFO L142 QuantifierPusher]: treesize reduction 78, result has 47.7 percent of original size [2021-07-09 22:57:17,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:17,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:57:17,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45712450] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 22:57:17,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 22:57:17,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-09 22:57:17,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360669829] [2021-07-09 22:57:17,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 22:57:17,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:57:17,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 22:57:17,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-07-09 22:57:17,770 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:17,910 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-07-09 22:57:18,113 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2021-07-09 22:57:18,259 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 49 [2021-07-09 22:57:18,600 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-07-09 22:57:18,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:57:18,646 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2021-07-09 22:57:18,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:57:18,647 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-07-09 22:57:18,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:57:18,647 INFO L225 Difference]: With dead ends: 38 [2021-07-09 22:57:18,647 INFO L226 Difference]: Without dead ends: 34 [2021-07-09 22:57:18,647 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1264.1ms TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-07-09 22:57:18,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-07-09 22:57:18,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 25. [2021-07-09 22:57:18,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2021-07-09 22:57:18,649 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 14 [2021-07-09 22:57:18,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:57:18,649 INFO L482 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2021-07-09 22:57:18,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:57:18,650 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-07-09 22:57:18,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-07-09 22:57:18,650 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:57:18,650 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:57:18,865 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-07-09 22:57:18,865 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 22:57:18,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:57:18,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1035332557, now seen corresponding path program 1 times [2021-07-09 22:57:18,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:57:18,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500783299] [2021-07-09 22:57:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:57:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:57:18,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:18,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:18,909 INFO L142 QuantifierPusher]: treesize reduction 3, result has 66.7 percent of original size [2021-07-09 22:57:18,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:18,916 INFO L142 QuantifierPusher]: treesize reduction 65, result has 63.9 percent of original size [2021-07-09 22:57:18,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-07-09 22:57:19,000 INFO L142 QuantifierPusher]: treesize reduction 91, result has 54.5 percent of original size [2021-07-09 22:57:19,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-07-09 22:57:19,074 INFO L142 QuantifierPusher]: treesize reduction 126, result has 51.5 percent of original size [2021-07-09 22:57:19,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-07-09 22:57:19,161 INFO L142 QuantifierPusher]: treesize reduction 112, result has 34.1 percent of original size [2021-07-09 22:57:19,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-07-09 22:57:19,203 INFO L142 QuantifierPusher]: treesize reduction 192, result has 18.6 percent of original size [2021-07-09 22:57:19,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-09 22:57:19,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:19,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:57:19,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:57:19,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500783299] [2021-07-09 22:57:19,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500783299] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 22:57:19,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586018998] [2021-07-09 22:57:19,239 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) [2021-07-09 22:57:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 22:57:19,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-09 22:57:19,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 22:57:19,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:19,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:19,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:19,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:19,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:19,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:19,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:19,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:57:19,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:19,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:19,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:19,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-09 22:57:19,295 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.8 percent of original size [2021-07-09 22:57:19,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:19,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-07-09 22:57:19,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-07-09 22:57:19,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:19,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-07-09 22:57:19,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-07-09 22:57:19,362 INFO L142 QuantifierPusher]: treesize reduction 2368, result has 22.5 percent of original size [2021-07-09 22:57:19,374 INFO L147 QuantifierPusher]: treesize reduction 41, result has 93.9 percent of original size 630 [2021-07-09 22:57:19,382 INFO L142 QuantifierPusher]: treesize reduction 41, result has 93.9 percent of original size [2021-07-09 22:57:19,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 630 [2021-07-09 22:57:19,576 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2021-07-09 22:57:19,579 INFO L142 QuantifierPusher]: treesize reduction 54, result has 69.8 percent of original size [2021-07-09 22:57:19,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:19,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-07-09 22:57:19,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-07-09 22:57:19,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-07-09 22:57:19,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-07-09 22:57:19,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-07-09 22:57:19,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-07-09 22:57:19,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-07-09 22:57:19,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-07-09 22:57:19,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-07-09 22:57:19,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-07-09 22:57:19,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-07-09 22:57:19,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-07-09 22:57:19,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-07-09 22:57:19,715 INFO L142 QuantifierPusher]: treesize reduction 8, result has 96.7 percent of original size [2021-07-09 22:57:19,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:19,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-07-09 22:57:19,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-07-09 22:57:19,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-09 22:57:19,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:57:19,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-07-09 22:57:19,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown